CN102895943A - Hydrocarbon oil desulphurization adsorbent, and preparation method and application thereof - Google Patents
Hydrocarbon oil desulphurization adsorbent, and preparation method and application thereof Download PDFInfo
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- 239000003463 adsorbent Substances 0.000 title claims abstract description 85
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 21
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 21
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 79
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000002808 molecular sieve Substances 0.000 claims abstract description 42
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000011787 zinc oxide Substances 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 23
- 239000004927 clay Substances 0.000 claims abstract description 20
- 239000010941 cobalt Substances 0.000 claims abstract description 11
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 11
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 36
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 30
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 18
- 239000002243 precursor Substances 0.000 claims description 18
- 239000011148 porous material Substances 0.000 claims description 17
- 229910002796 Si–Al Inorganic materials 0.000 claims description 15
- 239000002002 slurry Substances 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 13
- 239000005864 Sulphur Substances 0.000 claims description 10
- 239000011593 sulfur Substances 0.000 claims description 10
- 229910052717 sulfur Inorganic materials 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 239000000440 bentonite Substances 0.000 claims description 6
- 229910000278 bentonite Inorganic materials 0.000 claims description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- YJGJRYWNNHUESM-UHFFFAOYSA-J triacetyloxystannyl acetate Chemical compound [Sn+4].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O YJGJRYWNNHUESM-UHFFFAOYSA-J 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 235000014121 butter Nutrition 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 5
- 230000023556 desulfurization Effects 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 5
- 150000004706 metal oxides Chemical class 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical group CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- 150000007522 mineralic acids Chemical class 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 229910021647 smectite Inorganic materials 0.000 claims description 2
- 239000003502 gasoline Substances 0.000 abstract description 23
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 abstract description 17
- 239000002283 diesel fuel Substances 0.000 abstract description 9
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- 239000011572 manganese Substances 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000004523 catalytic cracking Methods 0.000 abstract description 2
- 239000002250 absorbent Substances 0.000 abstract 2
- 230000002745 absorbent Effects 0.000 abstract 2
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract 1
- 239000011229 interlayer Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 23
- 239000000126 substance Substances 0.000 description 23
- 210000002966 serum Anatomy 0.000 description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 15
- 238000001694 spray drying Methods 0.000 description 13
- 239000003054 catalyst Substances 0.000 description 12
- 229910001887 tin oxide Inorganic materials 0.000 description 12
- 238000005336 cracking Methods 0.000 description 9
- 239000003643 water by type Substances 0.000 description 9
- 239000003921 oil Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 238000007598 dipping method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000012013 faujasite Substances 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229930192474 thiophene Natural products 0.000 description 3
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- JGFBRKRYDCGYKD-UHFFFAOYSA-N dibutyl(oxo)tin Chemical compound CCCC[Sn](=O)CCCC JGFBRKRYDCGYKD-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000004227 thermal cracking Methods 0.000 description 2
- 150000003577 thiophenes Chemical class 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- HORCQSAKJDDBKB-UHFFFAOYSA-N 1-methyldibenzothiophene Chemical compound S1C2=CC=CC=C2C2=C1C=CC=C2C HORCQSAKJDDBKB-UHFFFAOYSA-N 0.000 description 1
- OHZAHWOAMVVGEL-UHFFFAOYSA-N 2,2'-bithiophene Chemical compound C1=CSC(C=2SC=CC=2)=C1 OHZAHWOAMVVGEL-UHFFFAOYSA-N 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
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- 238000005194 fractionation Methods 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- AOPCKOPZYFFEDA-UHFFFAOYSA-N nickel(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O AOPCKOPZYFFEDA-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000002898 organic sulfur compounds Chemical class 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Landscapes
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a hydrocarbon oil desulphurization adsorbent, and a preparation method and an application thereof. With a total weight of the adsorbent as a standard, The adsorbent provided by the invention at least comprises the components of, by weight: (1) 1-20% of an aluminosilicate molecular sieve with a duodenary-ring pore-channel structure, (2) 3-35% of tin dioxide, (3) 5-40% of pillared interlayer clay, (4) 10-80% of zinc oxide, and (5) 5-30% of at least one metal accelerating agent selected from cobalt, nickel, iron and manganese. The absorbent provided by the invention has high desulphurization activity and abrasion resistance, and has an advantage of a capacity for substantially increasing gasoline octane number. The absorbent can be used in catalytic cracking gasoline or diesel fuel desulphurization processes.
Description
Technical field
The present invention relates to adsorbent that from hydrocarbon ils, removes sulphur and its preparation method and application.
Background technology
CN 1355727A provides a kind of novel absorbing composition that contains zinc oxide, silica, aluminium oxide and nickel or cobalt, and the preparation method of this adsorbent is provided.The method is at first prepared the carrier that contains zinc oxide, silica, aluminium oxide, then introduces nickel by dipping.This adsorbent can be used for removing sulphur from cracking gasoline or diesel fuel.
Adopt promoter metals such as cobalt and nickel dipping to comprise the adsorbing agent carrier of zinc oxide, expanded perlite and aluminium oxide among the CN 1208124C, reduction accelerator under suitable temperature then is for the preparation of the adsorbent that removes the cracking gasoline medium sulphide content.
When above-mentioned adsorbent removes sulfur in gasoline under hydro condition, inevitably because olefin saturated causes octane number to reduce.
CN 101433821A mentions a kind of adsorbent that reduces sulfur content in hydrocarbon oils, comprises rare earth faujasite, reactive metal oxides and carrier, and wherein carrier comprises aluminium oxide and zinc oxide; With above-mentioned rare earth faujasite and carrier mixture preshaped be the porous heat-resistant solid particle, introduce metal active constituent at this solid particle again, prepare described adsorbent.
CN 101434854A mentions a kind of adsorbent that reduces sulfur content of light hydrocarbon oil, comprises phosphorus modified RE faujasite, reactive metal oxides and carrier, and wherein carrier comprises aluminium oxide and zinc oxide; With above-mentioned rare earth faujasite preshaped with carrier mixture after the phosphorus modification be the porous heat-resistant solid particle, introduce metal active constituent at this solid particle again, prepare described adsorbent.
Although above-mentioned two methods add and select the type molecular sieve and be conducive to isomerization and increase octane number, owing to lack promoter metals and the sulphur storage medium of appropriate level, it is enough desulphurizing activated to cause this adsorbent to lack.
Summary of the invention
The invention provides a kind of adsorbent that can be used for from hydrocarbon ils, removing sulphur, and preparation method and application's method of this adsorbent is provided.
Adsorbent provided by the invention take the adsorbent gross weight as benchmark, comprises following composition at least:
1) have the Si-Al molecular sieve of twelve-ring pore passage structure, content is 1-20wt%
2) tin ash, content are 3-35wt%;
3) laminated clay column, content are 5-40wt%;
4) zinc oxide, content are 10-80wt%;
5) at least a metallic promoter agent that is selected from cobalt, nickel, iron and manganese, content is 5-30wt%.
Under the preferable case, content with Si-Al molecular sieve of twelve-ring pore passage structure is 2-15wt%, the content of tin ash is 5-25wt%, the content of laminated clay column is 10-30wt%, the content of zinc oxide is 25-70wt%, and the content that is selected from the metallic promoter agent of cobalt, nickel, iron and manganese is 8-25wt%.
More preferably in the situation, content with Si-Al molecular sieve of twelve-ring pore passage structure is 2-10wt%, the content of tin ash is 8-15wt%, the content of laminated clay column is 12-25wt%, the content of zinc oxide is 40-60wt%, and the content that is selected from the metallic promoter agent of cobalt, nickel, iron and manganese is 12-20wt%.
Si-Al molecular sieve with twelve-ring pore passage structure, be selected from have FAU, one or more molecular sieves of the crystal structures such as MOR, MAZ, BEA, the molecular sieve of preferred FAU and/or BEA structure.
Described FAU structure molecular screen is the faujasite-type molecular sieve, and the type molecular sieve has three-dimensional twelve-ring duct, and the aperture is 7.4A * 7.4A.The FAU structure molecular screen is mainly the molecular sieve of X-type and Y type, in general SiO
2/ Al
2O
3Mol ratio be 2.2～3.0 for the X-type molecular sieve, SiO
2/ Al
2O
3Mol ratio greater than 3.0 be Y zeolite.The skeleton structure of X-type and Y zeolite all belongs to hexagonal crystal system, and the space group structure is Fd3m, the cell parameter a=24.86 of X-type molecular sieve～25.02A, the cell parameter a=24.6 of Y zeolite～24.85A.
Molecular sieve with FAU structure also comprises this molecular sieve analog after the modification, and method of modifying can comprise hydro-thermal method, method of chemical treatment (for example mineral acid logos, fluosilicic acid aluminium-eliminating and silicon-replenishing method and SiCl
4Vapor phase method) or hydro-thermal combine with chemical treatment, obtain molecular sieve after the modification and include but not limited to super-stable Y molecular sieves (USY), contain REUSY, REHY, the REY of rare earth element, and phosphorous PUSY, PREHY, PREY etc.
The BEA structure molecular screen is mainly beta-molecular sieve, and its structural formula is (Na
n[Al
nSi
64-nO
128], n＜7), be different by two structures but the polymorph A that is closely related and the mixed crystal of B both have twelve-ring 3 D pore canal system, polymorph A forms a pair of enantiomer, and space group is P4
122 and P4
322, cell parameter is a=12.5A, b=26.6A; Polymorph B belongs to achirality space group C2/c, cell parameter a=17.6A, b=17.8A, c=14.4A, β=114.5 °.Twelve-ring pore size 7.3A * 6.0A＜100 directions in the BEA structure molecular screen〉and 5.6A * 5.6A＜001 direction.
Described laminated clay column is the interbed mineral crystal, is comprised of two kinds of individual layer mineral clay component rule alternative arrangements, and its basal spacing is not less than 1.7nm, at 3.4 ° a stronger peak is arranged in its XRD collection of illustrative plates.The example of described laminated clay column includes but not limited to rectorite, Yun Mengshi, bentonite, imvite and smectite etc., preferred rectorite.
The invention provides the preparation method of hydrocarbon oil desulphurization adsorbing agent, comprising:
(1) the tin ash precursor is hydrolyzed in acid solution, forms colloidal sol;
(2) colloidal sol is mixed with laminated clay column, the Si-Al molecular sieve with twelve-ring pore passage structure and zinc oxide, the carrier mixture that obtains, and moulding, drying, roasting obtain containing the carrier of active component;
(3) compound of introducing containing metal promoter in carrier obtains the adsorbent precursor;
(4) dry, roasting adsorbent precursor;
(5) the adsorbent precursor after the roasting is reduced under hydrogen atmosphere, obtain adsorbent.
In the step (1), described tin ash precursor is the compound that can be hydrolyzed in step (1), exist with the form of tin ash after the roasting in step (2), one or more in preferred butter of tin, four isopropyl alcohol tin, tin acetate, the aqua oxidation tin.The tin ash precursor contacts with excess acid solution, can be hydrolyzed and generate caking property colloidal solution.Described acid is selected from one or more in water-soluble inorganic acid and/or the organic acid, is preferably in hydrochloric acid, nitric acid, phosphoric acid and the acetic acid one or more, and wherein the consumption of acid is to make that the pH of solution is 0.5-6 after the hydrolysis, and preferred 1-4 is to form colloidal sol.
In the step (2), described colloidal sol and laminated clay column, zinc oxide and the Si-Al molecular sieve with twelve-ring pore passage structure can adopt any order or mode to contact mixing.For example, can add first laminated clay column in colloidal sol, the Si-Al molecular sieve that adds zinc oxide and have the twelve-ring pore passage structure successively or simultaneously more also can add the three simultaneously; Can be directly add in the colloidal sol laminated clay column, zinc oxide and or have the Si-Al molecular sieve powder of twelve-ring pore passage structure, also can add the slurries that prepare in advance.
In the step (2), resulting carrier mixture is shaped to extrudate, sheet, pill, ball or micro-spherical particle.For example, when described carrier mixture is dough or paste mixture, can make described mixture moulding (preferred extrusion molding) form particle, preferred diameter is at 1.0-8.0mm, then length make the extrudate of gained carry out drying, roasting at the cylindrical extrudate of 2.0-5.0mm.If the gained mixture is the wet mixture form, can make this mixture multiviscosisty, through the super-dry aftershaping.More preferably carrier mixture is the slurries form, and forming granularity by spray-drying is the microballoon of 20-200 micron, reaches the purpose of moulding.For the ease of spray-drying, the solid content of dry front slurries is 10-50wt%, is preferably 20-50wt%.
The drying means of carrier mixture and condition are conventionally known to one of skill in the art, for example dry method can be dry, oven dry, forced air drying.Dry temperature can be room temperature to 400 ℃, is preferably 100-350 ℃.
The roasting condition of carrier mixture also is conventionally known to one of skill in the art, and in general, sintering temperature is 400-700 ℃, is preferably 450-650 ℃, and roasting time is at least 0.5 hour, is preferably 0.5-100 hour, more preferably 0.5-10 hour.
In the step (4), the described compound that contains the metallic promoter agent component is the material that can be converted into metal oxide under roasting condition.The compound of described metallic promoter agent can be selected from acetate, carbonate, nitrate, sulfate, rhodanate and the oxide of metal, and two or more mixture etc. wherein.Preferably contain nickel in the described metallic promoter agent.Can adopt the method that well known to a person skilled in the art dipping or precipitation to introduce metallic promoter agent at carrier.Described dipping method is solution or the carrier of suspension impregnation after roasting with the compound of containing metal promoter; Described intermediate processing is that the solution of the compound of containing metal promoter or suspension are mixed with adsorbing agent carrier, then adds ammoniacal liquor, with the compound precipitation of metallic promoter agent on carrier.
In the step (4), the carrier of introducing the metallic promoter agent component carries out drying under about 50-300 ℃, and preferred baking temperature is 100-250 ℃, is about 0.5-8 hour drying time, more preferably from about 1-5 hour.After the drying, under the condition that has oxygen or oxygen-containing gas to exist, about 300-800 ℃, more preferably carry out roasting under 450-750 ℃ the temperature, general about 0.5-4 hour of needed time of roasting, preferred 1-3 hour, until volatile materials is removed and the metallic promoter agent precursor is converted into metal oxide, obtain the adsorbent precursor.
In the step (5), the adsorbent precursor is reduced under 300-600 ℃ of hydrogeneous atmosphere, metallic promoter agent is existed with reduction-state basically, obtain adsorbent of the present invention.Preferred reduction temperature is 400-500 ℃, and hydrogen content is 10-60vol%, recovery time 0.5-6 hour, and more preferably 1-3 hour.
The invention provides a kind of desulfurization of hydrocarbon oil method, comprising: hydrocarbon oil containing surphur is fully contacted under hydrogen atmosphere with adsorbent of the present invention, and the temperature and pressure condition is: 350-500 ℃, and 0.5-4MPa; Preferred 400-450 ℃, 1.0-2.0MPa.Sulphur in this process in the hydrocarbon ils is adsorbed on the adsorbent, thereby obtains the hydrocarbon ils of low sulfur content.
Can reuse behind the reacted adsorbent reactivation.Regenerative process is carried out under oxygen atmosphere, and regeneration condition is normal pressure, and temperature is 400-700 ℃, preferred 500-600 ℃.
Adsorbent also need to reduce under hydrogen atmosphere before reusing after the regeneration, and the temperature and pressure scope of reduction is: 350-500 ℃, and 0.2-2MPa; Preferred 400-450 ℃, 0.2-1.5MPa.
Hydrocarbon ils of the present invention comprises cracking gasoline and diesel fuel, wherein " cracking gasoline " to mean boiling range be 40 to 210 ℃ hydrocarbon or its any cut, be from making larger hydrocarbon molecule be cracked into the product of more micromolecular heat or catalytic process.Applicable thermal cracking process includes, but are not limited to coking, thermal cracking and visbreaking etc. and combination thereof.The example of applicable catalytic cracking process includes but not limited to fluid catalystic cracking and RFCC etc. and combination thereof.Therefore, applicable catalytically cracked gasoline includes but not limited to coker gasoline, pressure gasoline, visbreaking gasoline, fluid catalystic cracking gasoline and residual oil cracking gasoline and combination thereof.Can be with described cracking gasoline fractionation and/or hydrotreatment before desulfurization during in some cases, in the methods of the invention as hydrocarbon-containifluids fluids.It is 170 ℃ to 450 ℃ hydrocarbon mixture or the liquid of its any fractional composition that institute's art " diesel fuel " means boiling range.This type of hydrocarbon-containifluids fluids includes but not limited to light cycle oil, kerosene, straight-run diesel oil and hydrotreatment diesel oil etc. and combination thereof.
The normal organosulfur compound that exists in term used herein " sulphur " any type of element sulphur of representative such as hydrocarbon-containifluids fluids such as cracking gasoline or the diesel fuel.The sulphur that exists in the hydrocarbon-containifluids fluids of the present invention includes but not limited to carbonyl sulfide (COS), carbon disulfide (CS
2), mercaptan or other thiophenes etc. and combination thereof, especially comprise thiophene, benzothiophene, alkylthrophene, alkylbenzene bithiophene and methyldibenzothiophene, and the normal larger thiophenes of molecular weight that exists in the diesel fuel.
Adsorbent of the present invention has very high desulphurizing activated and abrasion resistance, also has simultaneously the advantage of obvious increase octane number, applicable to catalytically cracked gasoline or diesel fuel sweetening process.
The specific embodiment
Following example will the present invention is described further, but not thereby limiting the invention.Among the embodiment, adsorbent forms employing XRD (X-ray diffraction) and analyzes.
Embodiment 1
Adsorbent prepares as follows with 2.33 kilograms of crystallization butter of tin (SnCl
4.5H
2O, Alfa Aesar company 99wt.%) slowly joins in the hydrochloric acid solution of 3.2 kilograms of 3wt.%, and slowly stirs and avoid the tin oxide crystal to separate out, and obtains water white tin oxide sol.Then add 2.75 kilograms rectorite (catalyst branch company in Shandong contains 2.06 kilograms of butts) in the above-mentioned tin oxide sol and mix.
With 4.43 kilograms of Zinc oxide powder (Headhorse companies, purity 99.7wt.%), 0.84 kilogram Beta molecular sieve (catalyst branch company in Nanjing contains 0.70 kilogram of butt) and 4.57 kilograms of deionized waters are mixed, and stir and obtain zinc oxide and Beta molecular sieve mixed serum after 30 minutes.This mixed serum is added in the above-mentioned slurries, and stir the carrier pulp that obtains adsorbent after 1 hour.
Described carrier pulp adopts Niro Bowen Nozzle Tower
TMThe spray dryer of model carries out spray-drying, and spray-drying pressure is 8.5 to 9.5MPa, and inlet temperature is below 500 ℃, and outlet temperature is about 150 ℃.First at 180 ℃ times dry 1 hour by the microballoon that spray-drying obtains, then obtained adsorbing agent carrier in 1 hour 635 ℃ of lower roastings.
With 3.2 kilograms adsorbing agent carriers with 3.51 kilograms of Nickelous nitrate hexahydrate (Beijing chemical reagents corporations, purity is greater than 98.5wt.%), 0.6 kilogram of deionized water solution dipping, the mixture that obtains after 4 hours, 1 hour can make adsorbent precursor in 635 ℃ of roastings of air atmosphere through 180 ℃ of dryings.
Adsorbent precursor reductase 12 in 425 ℃ hydrogen atmosphere hour can obtain adsorbent, and this adsorbent is designated as adsorbent A 1.The chemical composition of adsorbent A 1 is: zinc oxide content is 44.3wt.%, and rectorite content is 20.6wt.%, and the Beta molecular sieve content is 7.0wt.%, and tin ash binding agent 10.0wt.%, metallic nickel content are 18.1wt.%.
Embodiment 2
Get 1.26 kilograms of Dibutyltin oxide (Aldrich companies, analyze pure, 99wt.%) join the hydrochloric acid (chemical pure of 2.6 kilograms of 10wt.%, the Beijing Chemical Plant produces) in, and be warming up to 80 ℃ aging 1 hour, this moment, tin oxide was dissolved as water white colloidal solution fully, was called tin oxide sol.Then the imvite (catalyst branch company in Shandong contains 1.50 kilograms of butts) that adds 2.21 kilograms in the above-mentioned tin oxide sol under agitation mixes.
5.52 kilograms of Zinc oxide powder (Headhorse companies, purity 99.7%), 0.36 kilogram Beta molecular sieve (catalyst branch company in Nanjing contains 0.30 kilogram of butt) and 5.0 kilograms of deionized water mix and blends obtain zinc oxide and Beta molecular sieve mixed serum after 30 minutes.This mixed serum is added in the above-mentioned slurries, and stir after 1 hour and obtain carrier pulp.
Carry out the spray drying forming of carrier and introduce active component nickel with reference to the method for embodiment 1, obtain adsorbent A 2.The chemical composition of adsorbent A 2 is: zinc oxide content is 55.2wt.%, and the tin ash binder content is 11.7wt.%, and imvite content is 15.0wt.%, and the Beta molecular sieve content is 3.0wt%, and nickel content is 15.1wt.%.
Embodiment 3
Adsorbent prepares as follows: with 3.19 kilograms of tin acetate (Aldrich companies, analyze pure, 99wt.%) in situation about stirring, slowly join the hydrochloric acid (chemical pure of 3.5 kilograms of 5wt.%, the Beijing Chemical Plant produces) in the solution and stirred the collosol state that this moment, solution was white in color 1 hour.
With 4.93 kilograms of Zinc oxide powder (Headhorse companies, purity 99.7wt.%), 2.14 rectorite (the Shandong catalyst branch company of kilogram, contain 1.60 kilograms of butts), 0.56 kilogram USY (Shandong catalyst branch company, contain 0.50 kilogram of butt) and 6.40 kilograms of deionized waters mixing, stir and obtain mixed serum after 30 minutes.This mixed serum is added in the above-mentioned slurries, and stir after 1 hour and obtain carrier pulp.
Carry out the spray drying forming of carrier and introduce active component nickel and cobalt with reference to the method for embodiment 1, obtain adsorbent A 3.The chemical composition of adsorbent A 3 is: zinc oxide content is 49.3wt.%, and the tin ash binding agent is 13.5wt.%, and rectorite is 16.0wt.%, and USY content is 5.0wt%, and nickel content is 8.1wt.%, and cobalt content is 8.1%.
Embodiment 4
With 2.64 kilograms of tin acetate (Aldrich companies, analyze pure, 99wt%) in situation about stirring, slowly join in 3.5 kilogram 5% hydrochloric acid (chemical pure, the Beijing Chemical Plant produces) solution and stirred the collosol state that this moment, solution was white in color 1 hour.
With 5.52 kilograms of Zinc oxide powder (Headhorse companies, purity 99.7%), 1.96 kilogram go to bentonite (Shandong catalyst branch company, contain 1.50 kilograms of butts), 0.36 kilogram X molecular sieve (Shandong catalyst branch company, contain 0.30 kilogram of butt) and 6.40 kilograms of deionized waters mixing, stir and obtain mixed serum after 30 minutes.This mixed serum is added in the above-mentioned slurries, and stir after 1 hour and obtain carrier pulp.
Carry out the spray drying forming of carrier and introduce active component nickel with reference to the method for embodiment 1, obtain adsorbent A 4.The chemical composition of adsorbent A 4 is: zinc oxide content is 55.2wt.%, and the tin ash binding agent is 11.7wt.%, and bentonite is 15.0wt.%, and X molecular sieve content is 3.0wt%, and nickel content is 15.1wt.%.
Embodiment 5
With 2.33 kilograms of crystallization butter of tin (SnCl
4.5H
20, Alfa Aesar company, purity 99wt.%) slowly join in 3.2 kilograms of acid waters, and slowly stir and avoid the tin oxide crystal to separate out, obtain water white tin oxide sol.Then add 2.75 kilograms rectorite (catalyst branch company in Shandong contains 2.06 kilograms of butts) in the above-mentioned tin oxide sol and mix.
With 4.43 kilograms of Zinc oxide powder (Headhorse companies, purity 99.7wt%), 0.78 kilogram USY molecular sieve (catalyst branch company in Shandong contains 0.70 kilogram of butt) and 4.57 kilograms of deionized waters are mixed, and stir and obtain zinc oxide and USY molecular sieve mixed serum after 30 minutes.This mixed serum is added in the above-mentioned slurries, and stir the carrier pulp that obtains adsorbent after 1 hour.
Carry out the spray drying forming of carrier and introduce active component nickel with reference to the method for embodiment 1, obtain adsorbent A 5.The chemical composition of adsorbent A 5 is: zinc oxide content is 44.3wt.%, and rectorite content is 20.6wt.%, and the USY molecular sieve content is 7.0wt%, and tin ash 10.0wt.%, metallic nickel content are 18.1wt.%.
Comparative Examples 1
With 3.17 kilograms of crystallization butter of tin (SnCl
4.5H
20, Alfa Aesar company, purity 99wt.%) slowly join in 4.2 kilograms of acid waters, and slowly stir and avoid the tin oxide crystal to separate out, obtain water white tin oxide sol.Then add 3.20 kilograms rectorite (containing 2.40 kilograms of butts) in the above-mentioned tin oxide sol and mix.
4.43 kilograms of Zinc oxide powders (Headhorse company, purity 99.7wt%) and 4.57 kilograms of deionized waters are mixed, stir and obtain the zinc oxide slurries after 30 minutes.This mixed serum is added in the above-mentioned slurries, and stir the carrier pulp that obtains adsorbent after 1 hour.
Carry out the spray drying forming of carrier and introduce active component nickel with reference to the method for embodiment 1, obtain adsorbent B 1.The chemical composition of adsorbent B 1 is: zinc oxide content is 44.3wt.%, and rectorite content is 24.0wt.%, and tin ash 13.6wt.%, metallic nickel content are 18.1wt.%.
Comparative Examples 2
Get 1.26 kilograms of Dibutyltin oxide (Aldrich companies, analyze pure, 99wt%) join 2.6 kilogram 10% hydrochloric acid (chemical pure, the Beijing Chemical Plant produces) in, and be warming up to 80 ℃ aging 1 hour, this moment, tin oxide was dissolved as water white colloidal solution fully, was called tin oxide sol.Then the imvite (containing 1.80 kilograms of butts) that adds 2.65 kilograms in the above-mentioned tin oxide sol under agitation mixes.
5.52 kilograms of Zinc oxide powders (Headhorse company, purity 99.7%) and 5.0 kilograms of deionized water mix and blends are obtained the zinc oxide slurries after 30 minutes.This mixed serum is added in the above-mentioned slurries, and stir after 1 hour and obtain carrier pulp.
Carry out the spray drying forming of carrier and introduce active component nickel with reference to the method for embodiment 1, obtain adsorbent B 2.The chemical composition of adsorbent B 2 is: zinc oxide content is 55.2wt.%, and tin ash content is 11.7wt.%, and imvite content is 18.0wt.%, and nickel content is 15.1wt.%.
Comparative Examples 3
With 3.19 kilograms of tin acetate (Aldrich companies, analyze pure, 99wt%) in situation about stirring, slowly join in 3.5 kilogram 5% hydrochloric acid (chemical pure, the Beijing Chemical Plant produces) solution and stirred the collosol state that this moment, solution was white in color 1 hour.
With 4.93 kilograms of Zinc oxide powders (Headhorse company, purity 99.7%), 2.81 kilograms rectorite (catalyst branch company in Shandong contains 2.10 kilograms of butts) and 6.80 kilograms of deionized waters are mixed, and stir and obtain mixed serum after 30 minutes.This mixed serum is added in the above-mentioned slurries, and stir after 1 hour and obtain carrier pulp.
Carry out the spray drying forming of carrier and introduce active component nickel and cobalt with reference to the method for embodiment 1, obtain adsorbent B 3.The chemical composition of adsorbent B 3 is: zinc oxide content is 49.3wt.%, and tin ash content is 13.5wt.%, and rectorite is 21.0wt.%, and nickel content is 8.1wt.%, and cobalt content is 8.1%.
Comparative Examples 4
With 2.64 kilograms of tin acetate (Aldrich companies, analyze pure, 99wt%) in situation about stirring, slowly join in 3.5 kilogram 5% hydrochloric acid (chemical pure, the Beijing Chemical Plant produces) solution and stirred the collosol state that this moment, solution was white in color 1 hour.
With 5.52 kilograms of Zinc oxide powders (Headhorse company, purity 99.7%), 2.74 kilograms bentonite (catalyst branch company in Shandong contains 2.10 kilograms of butts) and 6.80 kilograms of deionized waters are mixed, and stir and obtain mixed serum after 30 minutes.This mixed serum is added in the above-mentioned slurries, and stir after 1 hour and obtain carrier pulp.
Carry out the spray drying forming of carrier and introduce active component nickel with reference to the method for embodiment 1, obtain adsorbent B 4.The chemical composition of adsorbent B 4 is: zinc oxide content is 49.3wt.%, and tin ash content is for being 13.5wt.%, and bentonite content is 21.0wt.%, and nickel content is 16.2wt.%.
Embodiment 6
The adsorbent that distinct methods is prepared is investigated abrasion strength resistance, desulfurization performance and three indexs of octane number.
The intensity of adsorbent adopts straight tube wearing and tearing method to estimate, and its evaluation method is with reference to the method for RIPP 29-90 in " Petrochemical Engineering Analysis method (RIPP) experimental technique ", and abrasion index is less, shows that abrasion strength resistance is higher.Different adsorbent attrition evaluation results are as shown in table 1.
Desulfurization performance is weighed with the product sulfur content, and sulfur content adopts the off-line chromatography in the product, adopts the little anti-experimental provision of fixed bed to estimate, and it is the catalytically cracked gasoline of 640ppm that the adsorption reaction raw material adopts sulphur concentration.The absorption test process adopts hydrogen atmosphere, and reaction temperature is 410 ℃, and the adsorption reaction weight space velocity is 4h
-1, in order accurately to characterize out the activity of adsorbent in industrial actual motion, adsorbent processings of regenerating after reaction is finished, the regeneration processing is what to carry out under 550 ℃ air atmosphere.Its activity settled out substantially after adsorbent carried out 6 circulations of reaction regeneration, and the sulfur content after stablizing with adsorbent in the product gasoline represents the activity of adsorbent, and sulfur content is as shown in table 1 in the stable rear product gasoline.Simultaneously product gasoline is weighed and calculate its yield.
Adopt respectively GB/T 503-1995 and GB/T 5487-1995 to measure motor octane number (MON) and the research octane number (RON) (RON) of reaction front and back gasoline, the results are shown in Table 1.Can find out by table 1, contain the sorbent reactions of BEA or FAU structure molecular screen after, the octane number of product gasoline all has increase in various degree.
The performance of the different adsorbents of table 1
Annotate:
1, the sulfur content of feed gasoline is 640ppm, and RON is that 93.0, MON is 82.7.
2, Δ MON represents the value added of product MON;
3, Δ RON represents the value added of product RON;
4, Δ (RON+MON)/2 is the poor of product anti-knock index and raw material anti-knock index.
Claims (19)
1. hydrocarbon oil desulphurization adsorbing agent take the adsorbent gross weight as benchmark, comprises following component:
1) have the Si-Al molecular sieve of twelve-ring pore passage structure, content is 1-20wt%;
2) tin ash, content are 3-35wt%;
3) laminated clay column, content are 5-40wt%;
4) zinc oxide, content are 10-80wt%;
5) at least a metallic promoter agent that is selected from cobalt, nickel, iron and manganese, content is 5-30wt%.
2. according to adsorbent claimed in claim 1, wherein each constituent content is: the content with Si-Al molecular sieve of twelve-ring pore passage structure is 2-15wt%, tin ash content is 5-25wt%, the content of laminated clay column is 10-30wt%, zinc oxide content is 25-70wt%, and the content of metallic promoter agent is 8-25wt%.
3. according to adsorbent claimed in claim 1, the content that wherein has the Si-Al molecular sieve of twelve-ring pore passage structure is 2-10wt%, the content of tin ash is 8-15wt%, the content of laminated clay column is 12-25wt%, the content of zinc oxide is 40-60wt%, and the content of metallic promoter agent is 12-20wt%.
4. according to adsorbent claimed in claim 1, the Si-Al molecular sieve that wherein has the twelve-ring pore passage structure be selected from have FAU, one or more molecular sieves of MOR, MAZ, BEA crystal structure.
5. according to adsorbent claimed in claim 4, wherein said FAU structure molecular screen is X-type and/or Y zeolite.
6. according to adsorbent claimed in claim 4, the molecular sieve that wherein has a FAU structure also comprises this molecular sieve analog after the modification, include but not limited to USY, contain REUSY, REHY, the REY of rare earth element, and among phosphorous PUSY, PREHY, the PREY one or more.
7. according to adsorbent claimed in claim 4, wherein the BEA structure molecular screen is beta-molecular sieve.
8. according to adsorbent claimed in claim 1, wherein said laminated clay column is comprised of two kinds of individual layer mineral clay component rule alternative arrangements, and its basal spacing is not less than 1.7nm, at 3.4 ° a stronger peak is arranged in its XRD collection of illustrative plates.
9. according to adsorbent claimed in claim 1, wherein said laminated clay column is selected from one or more in rectorite, Yun Mengshi, bentonite, imvite and the smectite.
10. the preparation method of the described adsorbent of one of claim 1-9 comprises:
(1) the tin ash precursor is hydrolyzed in acid solution, forms colloidal sol;
(2) colloidal sol is mixed with laminated clay column, the Si-Al molecular sieve with twelve-ring pore passage structure and zinc oxide, and moulding, drying, roasting, obtain containing the carrier of active component;
(3) compound of introducing containing metal promoter in carrier obtains the adsorbent precursor;
(4) dry, roasting adsorbent precursor;
(5) the adsorbent precursor after the roasting is reduced under hydrogen atmosphere, obtain adsorbent.
11. according to preparation method claimed in claim 10, wherein in the step (1), described tin ash precursor is selected from one or more in butter of tin, four isopropyl alcohol tin, tin acetate, the aqua oxidation tin.
12. according to preparation method claimed in claim 10, said acid is selected from one or more in water-soluble inorganic acid and/or the organic acid, the consumption of acid is to make the pH value of the rear solution of hydrolysis be 1-6.
13. according to the described preparation method of claim 12, wherein said acid is one or more in hydrochloric acid, nitric acid, phosphoric acid and the acetic acid, the consumption of acid makes the pH value of the rear solution of hydrolysis be 1.5-4.
14. according to preparation method claimed in claim 10, in the step (2), in colloidal sol, add first laminated clay column, the Si-Al molecular sieve that adds zinc oxide and have the twelve-ring pore passage structure successively or simultaneously again, or the three added colloidal sol simultaneously; Directly add in the colloidal sol laminated clay column, zinc oxide and or have the Si-Al molecular sieve powder of twelve-ring pore passage structure, or add the slurries that prepare in advance.
15. according to preparation method claimed in claim 10, dry temperature is room temperature to 400 ℃, sintering temperature is 400-700 ℃.
16. according to preparation method claimed in claim 10, in the step (3), the compound of described containing metal promoter is selected from acetate, carbonate, nitrate, sulfate, rhodanate and the oxide of metallic promoter agent, and two or more mixture wherein.
17. according to preparation method claimed in claim 10, in the step (4), the carrier of introducing promoter component is lower dry at about 50-300 ℃, under the condition that has oxygen or oxygen-containing gas to exist, under about 300-800 ℃ temperature, carry out roasting, until volatile materials is removed and metallic promoter agent is converted into metal oxide, obtain the adsorbent precursor.
18. according to preparation method claimed in claim 10, in the step (5), the adsorbent precursor is reduced under 300-600 ℃ of hydrogeneous atmosphere, metallic promoter agent is existed with reduction-state basically.
19. desulfurization of hydrocarbon oil method, comprise: hydrocarbon oil containing surphur is fully contacted under hydrogen atmosphere with the described adsorbent of one of claim 1-9, the temperature and pressure condition is: 350-500 ℃, 0.5-4MPa, sulphur in this process in the hydrocarbon ils is adsorbed on the adsorbent, thereby obtains the hydrocarbon ils of low sulfur content.
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Application publication date: 20130130 |