WO2003064035A1 - Procedimiento para la deshidrogenacion oxidativa de etano - Google Patents
Procedimiento para la deshidrogenacion oxidativa de etano Download PDFInfo
- Publication number
- WO2003064035A1 WO2003064035A1 PCT/ES2003/000056 ES0300056W WO03064035A1 WO 2003064035 A1 WO2003064035 A1 WO 2003064035A1 ES 0300056 W ES0300056 W ES 0300056W WO 03064035 A1 WO03064035 A1 WO 03064035A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ethane
- catalyst
- process according
- oxidative dehydrogenation
- carried out
- Prior art date
Links
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000005839 oxidative dehydrogenation reaction Methods 0.000 title claims abstract description 41
- 239000003054 catalyst Substances 0.000 claims abstract description 100
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 19
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 10
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 9
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 9
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 8
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 7
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 7
- 229910052718 tin Inorganic materials 0.000 claims abstract description 7
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract description 6
- 150000001342 alkaline earth metals Chemical class 0.000 claims abstract description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 6
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 6
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 5
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims description 44
- 238000006243 chemical reaction Methods 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 239000000203 mixture Substances 0.000 claims description 27
- 238000007254 oxidation reaction Methods 0.000 claims description 27
- 230000003647 oxidation Effects 0.000 claims description 26
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 22
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 18
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 15
- 229910052721 tungsten Inorganic materials 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 abstract description 9
- 229910052742 iron Inorganic materials 0.000 abstract description 8
- 239000000243 solution Substances 0.000 description 28
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 20
- 239000010955 niobium Substances 0.000 description 18
- 238000002156 mixing Methods 0.000 description 13
- 239000001307 helium Substances 0.000 description 12
- 229910052734 helium Inorganic materials 0.000 description 12
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 12
- 241000282326 Felis catus Species 0.000 description 11
- 239000010453 quartz Substances 0.000 description 11
- 238000001354 calcination Methods 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 9
- QGAVSDVURUSLQK-UHFFFAOYSA-N ammonium heptamolybdate Chemical compound N.N.N.N.N.N.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo] QGAVSDVURUSLQK-UHFFFAOYSA-N 0.000 description 8
- XNHGKSMNCCTMFO-UHFFFAOYSA-D niobium(5+);oxalate Chemical compound [Nb+5].[Nb+5].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O XNHGKSMNCCTMFO-UHFFFAOYSA-D 0.000 description 8
- FXADMRZICBQPQY-UHFFFAOYSA-N orthotelluric acid Chemical compound O[Te](O)(O)(O)(O)O FXADMRZICBQPQY-UHFFFAOYSA-N 0.000 description 8
- 230000003068 static effect Effects 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 239000007864 aqueous solution Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 6
- 238000001027 hydrothermal synthesis Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 229910052714 tellurium Inorganic materials 0.000 description 6
- UUUGYDOQQLOJQA-UHFFFAOYSA-L vanadyl sulfate Chemical compound [V+2]=O.[O-]S([O-])(=O)=O UUUGYDOQQLOJQA-UHFFFAOYSA-L 0.000 description 6
- 229940041260 vanadyl sulfate Drugs 0.000 description 6
- 229910000352 vanadyl sulfate Inorganic materials 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000004809 Teflon Substances 0.000 description 5
- 229920006362 Teflon® Polymers 0.000 description 5
- 239000000908 ammonium hydroxide Substances 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 4
- 150000004706 metal oxides Chemical class 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 4
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 4
- 229910052770 Uranium Inorganic materials 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 3
- 229910052735 hafnium Inorganic materials 0.000 description 3
- 229910052745 lead Inorganic materials 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- -1 vanadyl chloride Chemical compound 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 150000004703 alkoxides Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- 229910052790 beryllium Inorganic materials 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 150000003891 oxalate salts Chemical class 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 description 1
- 238000010335 hydrothermal treatment Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- OGUCKKLSDGRKSH-UHFFFAOYSA-N oxalic acid oxovanadium Chemical compound [V].[O].C(C(=O)O)(=O)O OGUCKKLSDGRKSH-UHFFFAOYSA-N 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- YHBDIEWMOMLKOO-UHFFFAOYSA-I pentachloroniobium Chemical compound Cl[Nb](Cl)(Cl)(Cl)Cl YHBDIEWMOMLKOO-UHFFFAOYSA-I 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/215—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of saturated hydrocarbyl groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
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- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
-
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- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/28—Molybdenum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/31—Chromium, molybdenum or tungsten combined with bismuth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/887—Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/8877—Vanadium, tantalum, niobium or polonium
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- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/02—Sulfur, selenium or tellurium; Compounds thereof
- B01J27/057—Selenium or tellurium; Compounds thereof
- B01J27/0576—Tellurium; Compounds thereof
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/24—Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/42—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor
- C07C5/48—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor with oxygen as an acceptor
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
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- B01J2235/00—Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
- B01J2235/15—X-ray diffraction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/888—Tungsten
- B01J23/8885—Tungsten containing also molybdenum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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Definitions
- the present invention is encompassed in the technical field of petrochemical processes.
- it refers to. an ethane oxidation process and more specifically to the oxidative dehydrogenation of ethane to obtain ethene.
- Ethene is currently obtained from the catalytic cracking of petroleum or by catalytic dehydrogenation of ethane.
- oxidative dehydrogenation reactions in the presence of oxygen or air.
- Catalysts based on metal oxides Mo a X b Y c in which X can be one or more elements (Cr, Mn, Nb, Ta, Ti, V y) and Y is Bi, Ce, Co, Cu, Fe, K, Mg, Ni, P, Pb, Sb, Si, Sn, Ti or U for the oxidative dehydrogenation of ethane to ethene are described in US Pat. No. 4,250,346, however, the reference only proposes obtaining of ethene with high selectivity.
- the metal oxides of Mo-V-Nb-Sb are found to be more effective for the selective oxidation of ethane to ethene as it appears from, for example, US-A-4, 524, 236 (1985); JP-10175885 (1988).
- JP-07053414 (patent written in Japanese) an active and selective catalyst for the oxidative dehydrogenation of ethane to ethene based on MoVTeNb oxides (M ⁇ Vo. 3 Te 0.
- WO-99/13980 describes a catalyst with Mo, V and Nb and small amounts of phosphorus, boron, hafnium, tellurium and / or arsenic with calcination temperatures.
- Spanish patent application P200101756 describes catalysts comprising Mo-Te-V-Cu and at least one other component A selected from Nb, Ta, Sn, Se, W, Ti, Fe, Co, Ni, Cr, Ga, Sb, Bi, a rare earth, alkaline or alkaline earth, for the oxidation of alkanes; but it has not been proven that said catalysts give rise to an oxidation of ethane with the required desired performance on an industrial scale.
- the present invention relates to a process for the oxidative dehydrogenation of ethane, characterized in that it comprises contacting ethane with a catalyst comprising Mo, Te, V, Nb and at least a fifth element A selected from Cu, Ta, Sn, Se ,, Ti, Fe, Co, Ni, Cr, Zr, Ga, Sb, Bi, an alkali metal, alkaline earth metal and a rare earth, in which at least Mo, Te, V and Nb are present in the form of at least an oxide, the catalyst having, in calcined form, an X-ray diffractogram with more than ten intense diffraction lines, typically the most intense, corresponding to 2 ⁇ diffraction angles of 7.7 ° ⁇ 0.4; 8.9 ° ⁇ 0.4; 22.1 ° ⁇ 0.4; 26.6 ° ⁇ 0.4 26.9 ° ⁇ 0.4, 27.1 ° ⁇ 0.4; 28.1 ° ⁇ 0.4; 31.2 ° ⁇ 0.4; 35.0
- At least Mo, Te, V and Nb are present in the form of at least one calcined mixed oxide.
- the catalyst has the empirical formula:
- MoTe h ViNb j A k O x in which h, i and j, have values between 0.001 and 4.0, k is between 0.0001 and 2.0 and x depends on the oxidation or valence state of the elements Mo, Te , V, Nb and A, that is, the "x" amount of oxygen in the catalyst depends on the composition and the method of activation.
- the above parameters have the following values and relationships:
- - h and i are between 0.01 and 3, preferably between 0.02 and 2
- the i / h ratio is between 0.3 and 10
- - j is between 0.001 and 2, preferably between 0.001 and 0.5
- k is between 0.0001 and 2.0, preferably between 0.001 and 1, 0.
- A is Cu, W or Bi. In a more preferred embodiment even A is Cu, W or Bi and the above parameters take the following values:
- - j is between 0.001 and 1.5 and - k is between 0.001 and 2.0.
- the catalyst can be a mixed oxide supported on a solid, such as silica, alumina, titanium oxide and mixtures of the same.
- silica as a solid support is present in a proportion of 20 to 70% by weight with respect to the total catalyst weight.
- the catalyst can also be in the form of a mixed oxide supported on a silicon carbide.
- the catalyst in its calcined form has an X-ray diffractogram whose most intense diffraction lines, as well as the corresponding intensities relative to the peak of greater intensity, are those shown in Table 1.
- Said catalyst can be prepared by conventional methods from solutions of compounds of the different elements, from solutions of the same pure elements, or from mixing of both, with the desired atomic ratios. Said solutions are preferably aqueous solutions.
- the catalyst preparation process comprises at least:
- the mixing stage can be carried out from the compounds of the different elements, from the pure elements themselves in solution, or by hydrothermal methods.
- the elements Mo, Te, V and Nb can be incorporated into the mixing stage as pure metal elements, as salts, as oxides, as hydroxides, as alkoxides, as acids, or as mixtures of two or more of the aforementioned forms. Sulfates, nitrates, oxalates or halides are preferably used as salts, and more preferably as sulfates.
- the Mo can be incorporated into the mixing step preferably as molibedic acid, ammonium molybdate, ammonium heptamolybdate and molybdenum oxide.
- the Te can be incorporated into the mixing stage preferably as telluric acid, tellurium oxide and metal tellurium.
- the V can be incorporated into the mixing step preferably as ammonium vanadate, vanadium oxide, vanadyl sulfate, vanadyl oxalate or vanadyl chloride.
- the Nb can be incorporated into the mixing step preferably as niobium pentoxide, niobium oxalate, niobium chloride or Nb metal.
- the elements Cu, W, Bi, Ta, Sn, Se, Ti, Fe, Co, Ni, Cr, Ga, Sb, Zr, rare earth, alkali metal or alkaline earth metal can also be incorporated into the mixing stage as salts, oxides, hydroxides, or alkoxides, pure or as mixtures of two or more elements. Preferably they are incorporated as sulfates, nitrates, oxalates or halides, and more preferably as sulfates.
- the mixing step can be followed by a period of static permanence in the reactor, or the mixing can be carried out with stirring. Both static permanence and agitation can be performed in a normal reactor or in an autoclave.
- the mixing step can be carried out in solution or by hydrothermal treatment.
- the drying stage can be carried out by conventional methods in an oven, evaporation with stirring, evaporation in a rotary evaporator, or vacuum drying.
- the step of calcining the dry solid can be carried out under an inert gas atmosphere, such as nitrogen, helium, argon or mixtures, of air or mixtures.
- An alternative embodiment of the process is carried out, as indicated above, using hydrothermal methods (containing two or more elements in the synthesis, especially containing Mo, Te, V and Nb).
- the temperature and time of synthesis can be decisive using hydrothermal methods.
- the synthesis temperature is preferably performed between 100 and 250 ° C and, more specifically, between 150 and 180 ° C.
- the synthesis time is preferably between 6 and 500 hours, and more specifically between 24 and 200 hours.
- the calcination step can be carried out by passing a flow of inert gas (with space velocities between 1 and 400 h "1 ) or static.
- the temperature is preferably between 250 and 1000 ° C and more preferably between 550 and 800 ° C.
- the calcination time is not decisive, but is preferred between 0.5 hours and 20 hours.
- the heating rate is not decisive, but it is preferred between 0, 1 ° C / minute and 10 ° C / minute.
- the catalyst may also be initially calcined in an oxidizing atmosphere to a temperature of 200-350 ° C, and more preferably between 250 and 290 ° C, and subsequently subjected to calcination in an inert atmosphere.
- the elements Cu, W, Bi, Ta, Sn, Se, Ti, Fe, Co, Ni, Cr, Ga, Sb, Zr, rare earth, alkali metal or alkaline earth metal can also be incorporated after the calcination by impregnation stage or precipitation In this case, the resulting solid will be subjected to a second calcination stage.
- the catalyst for the process of the present invention can be used as obtained once calcined.
- the catalyst can be supported on a solid such as: silica, alumina, titanium oxide or mixtures thereof, as well as silicon carbide.
- the fixing of the different catalyst elements on the support can be carried out by conventional impregnation methods, such as pore volume, excess solution, or simply by precipitation on the support of a solution containing the active elements.
- the oxidative dehydrogenation process of ethane according to the present invention converts ethane to ethene according to a preferred embodiment.
- the process that gives rise to ethene is preferably carried out in the gas phase, and in the presence of water vapor.
- the oxidative dehydrogenation of ethane gives rise to acetic acid by reaction of ethane and oxygen in the gas phase, in the presence of water
- oxidative dehydrogenation of ethane results in acetonitrile by reaction of ethane, and oxygen, in the gas phase, in the presence of ammonia and water vapor.
- the oxidative dehydrogenation of ethane to ethane or acetic acid is carried out using the catalyst described as cocatalyst.
- oxidative dehydrogenation of ethane to acetonitrile is carried out using the catalyst described as cocatalyst and producing ethane oxidation.
- the oxidative dehydrogenation of ethane produces ethylene oxide and said oxidative dehydrogenation of ethane is carried out using the catalyst as a cocatalyst producing the oxidation of ethane to ethylene oxide.
- oxidizing agent pure oxygen, air, inert oxygen-gas mixtures (with different proportions of both) or oxygen enriched air can be used.
- water may or may not be incorporated into the feed.
- the water content in the reaction mixture may be from 0 to 80%, and more preferably between 20 and 60%.
- the oxidative dehydrogenation process can be carried out in a fixed bed reactor or in a fluidized bed reactor.
- the reaction temperature is between 250 and 550 ° C, preferably between 300 and 480 ° C, and more preferably between 350 and 440 ° C.
- the contact time defined as the ratio between the catalyst volume () and the total gas flow rate (F), is between 0.001 and 100 s. Although the contact time depends on the method of preparation and composition of the catalyst employed, in general it is preferable between 0.05 and 50, and more preferably between 0.1 and 25 s.
- Figure 1 shows an X-ray diffractogram of the catalyst described in Example 1
- Figure 2 shows an X-ray diffractogram of the catalyst described in example 3
- Figure 3 shows an X-ray diffractogram of the catalyst described in example 5
- Figure 4 shows an X-ray diffractogram of the catalyst described in example 7
- Figure 5 shows an X-ray diffractogram of the catalyst described in Example 9
- Figure 6 shows an X-ray diffractogram of the catalyst described in Example 11
- Figure 7 shows an X-ray diffractogram of the catalyst described in example 15.
- Example 1 Preparation of an oxidation catalyst based on a mixed oxide of Mo-Te-V-Nb-0 by hydrothermal method
- Example 2 Use of the catalyst described in example 1 for the oxidative dehydrogenation of ethane
- Example 4 Use of the oxidation catalyst described in example 3 for oxidative dehydrogenation of ethane
- Example 6 Use of the catalyst described in example 5 for the oxidative dehydrogenation of ethane
- Example 7 Preparation of an oxidation catalyst based on a mixed oxide of Mo-Te-V-Nb-0 by hydrothermal method by modifying the calcination temperature
- Example 8 Use of the catalyst described in example 5 for the oxidative dehydrogenation of ethane
- Example 9 Preparation of an oxidation catalyst based on a mixed Mo-Te-V-Nb-Cu oxide modifying the synthesis conditions
- the autoclave is kept at 175 ° C, in static, for 60 h.
- the contents of the autoclave are filtered, washed with distilled water and dried at 80 ° C.
- the solid obtained is calcined at 600 ° C for 2 h under a stream of nitrogen.
- Example 10 Use of the catalyst described in example 9 for the oxidative dehydrogenation of ethane
- Example 11 Preparation of an oxidation catalyst similar to that of Example 7 by modifying the synthesis conditions
- Example 12 Use of the catalyst described in example 11 for the oxidative dehydrogenation of ethane
- Example 13 Use of the catalyst described in Example 11 by modifying the reaction conditions
- Example 14 Use of the catalyst described in example 11 by modifying the reaction conditions
- Example 15 Preparation of an oxidation catalyst from a solution containing Mo-V-Te-Nb by modifying the method of preparation In 1307 ml of hot water at 80 ° C, 80.0 g of tetrahydrated ammonium heptamolybdate was dissolved, 15 , 87 g of ammonium metavanadate, and 23.97 g of telluric acid, obtaining a uniform solution. On the other hand and after heating to 40 ° C a solution (356.8 g) of niobium oxalate containing 53.97 mmol of niobium was prepared and added to the previous solution to obtain a solution.
- Example 16 Use of the catalyst described in example 15 for the oxidative dehydrogenation of ethane
- Example 18 Preparation of an oxidation catalyst from a solution containing Mo-V-Te-Nb-Bi by modifying the preparation method
- Example 19 Use of the catalyst described in example 18 for the oxidative dehydrogenation of ethane with different reaction conditions
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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EP03704717A EP1479438A1 (en) | 2002-01-31 | 2003-01-31 | Method for the oxidative dehydrogenation of ethane |
US10/909,276 US7319179B2 (en) | 2002-01-31 | 2004-07-30 | Method for the oxidative dehydrogenation of ethane |
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Application Number | Priority Date | Filing Date | Title |
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ESP200200276 | 2002-01-31 | ||
ES200200276A ES2192983B1 (es) | 2002-01-31 | 2002-01-31 | Un catalizador para la deshidrogenacion oxidativa de etano a eteno. |
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US10/909,276 Continuation US7319179B2 (en) | 2002-01-31 | 2004-07-30 | Method for the oxidative dehydrogenation of ethane |
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Cited By (42)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1479438A1 (en) | 2004-11-24 |
US20050085678A1 (en) | 2005-04-21 |
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