CN105833667A - Renewable adsorbent for removing sulfur dioxide - Google Patents
Renewable adsorbent for removing sulfur dioxide Download PDFInfo
- Publication number
- CN105833667A CN105833667A CN201610370757.9A CN201610370757A CN105833667A CN 105833667 A CN105833667 A CN 105833667A CN 201610370757 A CN201610370757 A CN 201610370757A CN 105833667 A CN105833667 A CN 105833667A
- Authority
- CN
- China
- Prior art keywords
- scrubbing
- absorbent
- diamine
- ethoxy
- hydroxyethyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title abstract description 45
- 239000003463 adsorbent Substances 0.000 title abstract 2
- 239000002250 absorbent Substances 0.000 claims abstract description 35
- 230000002745 absorbent Effects 0.000 claims abstract description 33
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 9
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012190 activator Substances 0.000 claims abstract description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 238000005201 scrubbing Methods 0.000 claims description 14
- -1 hydroxyethyl diamine Chemical class 0.000 claims description 13
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 claims description 12
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N 1,4-Benzenediol Natural products OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexamethylene diamine Natural products NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 6
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 claims description 5
- 150000004985 diamines Chemical class 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- GGHDAUPFEBTORZ-UHFFFAOYSA-N propane-1,1-diamine Chemical compound CCC(N)N GGHDAUPFEBTORZ-UHFFFAOYSA-N 0.000 claims description 4
- 150000003335 secondary amines Chemical group 0.000 claims description 4
- WFCSWCVEJLETKA-UHFFFAOYSA-N 2-piperazin-1-ylethanol Chemical group OCCN1CCNCC1 WFCSWCVEJLETKA-UHFFFAOYSA-N 0.000 claims description 3
- LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 claims description 3
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 3
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 claims description 3
- CRUUGINCUHNGMZ-UHFFFAOYSA-N 1,3-diethoxy-2h-imidazole Chemical class CCON1CN(OCC)C=C1 CRUUGINCUHNGMZ-UHFFFAOYSA-N 0.000 claims description 2
- MQBXPXQEPNJXQB-UHFFFAOYSA-N 1,4-diethoxypiperazine Chemical compound CCON1CCN(OCC)CC1 MQBXPXQEPNJXQB-UHFFFAOYSA-N 0.000 claims description 2
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 claims description 2
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 claims description 2
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 2
- 125000000687 hydroquinonyl group Chemical group C1(O)=C(C=C(O)C=C1)* 0.000 claims description 2
- 150000002460 imidazoles Chemical class 0.000 claims description 2
- CYLWXTCHTYMIHB-UHFFFAOYSA-N 1-ethoxyimidazole Chemical class CCON1C=CN=C1 CYLWXTCHTYMIHB-UHFFFAOYSA-N 0.000 claims 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 17
- 239000003546 flue gas Substances 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000006227 byproduct Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000008929 regeneration Effects 0.000 description 6
- 238000011069 regeneration method Methods 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 229960005141 piperazine Drugs 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- AMSDWLOANMAILF-UHFFFAOYSA-N 2-imidazol-1-ylethanol Chemical compound OCCN1C=CN=C1 AMSDWLOANMAILF-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- QZAYGJVTTNCVMB-UHFFFAOYSA-N serotonin Chemical compound C1=C(O)C=C2C(CCN)=CNC2=C1 QZAYGJVTTNCVMB-UHFFFAOYSA-N 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- JPIGSMKDJQPHJC-UHFFFAOYSA-N 1-(2-aminoethoxy)ethanol Chemical compound CC(O)OCCN JPIGSMKDJQPHJC-UHFFFAOYSA-N 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N 1-propanol Substances CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 1
- NBIQXTHZMWDBRA-UHFFFAOYSA-N 2-piperazin-1-ylethanol;sulfuric acid Chemical compound OS(O)(=O)=O.OCCN1CCNCC1 NBIQXTHZMWDBRA-UHFFFAOYSA-N 0.000 description 1
- BXGYBSJAZFGIPX-UHFFFAOYSA-N 2-pyridin-2-ylethanol Chemical compound OCCC1=CC=CC=N1 BXGYBSJAZFGIPX-UHFFFAOYSA-N 0.000 description 1
- KOGSPLLRMRSADR-UHFFFAOYSA-N 4-(2-aminopropan-2-yl)-1-methylcyclohexan-1-amine Chemical compound CC(C)(N)C1CCC(C)(N)CC1 KOGSPLLRMRSADR-UHFFFAOYSA-N 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical class [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000218691 Cupressaceae Species 0.000 description 1
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 229940069428 antacid Drugs 0.000 description 1
- 239000003159 antacid agent Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 229940026189 antimony potassium tartrate Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- WBTCZEPSIIFINA-MSFWTACDSA-J dipotassium;antimony(3+);(2r,3r)-2,3-dioxidobutanedioate;trihydrate Chemical compound O.O.O.[K+].[K+].[Sb+3].[Sb+3].[O-]C(=O)[C@H]([O-])[C@@H]([O-])C([O-])=O.[O-]C(=O)[C@H]([O-])[C@@H]([O-])C([O-])=O WBTCZEPSIIFINA-MSFWTACDSA-J 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- SQNZJJAZBFDUTD-UHFFFAOYSA-N durene Chemical compound CC1=CC(C)=C(C)C=C1C SQNZJJAZBFDUTD-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910001412 inorganic anion Inorganic materials 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- ALTWGIIQPLQAAM-UHFFFAOYSA-N metavanadate Chemical compound [O-][V](=O)=O ALTWGIIQPLQAAM-UHFFFAOYSA-N 0.000 description 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- YLFCXTJHZOZFFI-UHFFFAOYSA-N n'-ethoxyethane-1,2-diamine Chemical compound CCONCCN YLFCXTJHZOZFFI-UHFFFAOYSA-N 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229960001893 piperazine sulfate Drugs 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229940076279 serotonin Drugs 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1425—Regeneration of liquid absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
- B01D2252/2056—Sulfur compounds, e.g. Sulfolane, thiols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/50—Combinations of absorbents
- B01D2252/504—Mixtures of two or more absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/60—Additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/60—Additives
- B01D2252/602—Activators, promoting agents, catalytic agents or enzymes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a renewable adsorbent for removing sulfur dioxide, comprising the following components according to parts by weight: 10-32 parts of a main component, 1-5 parts of an activator, 0.1-1 part of an antioxidant and 65-90 parts of water. The renewable absorbent provided herein uses a hydroxylethyldiamine sulfate as a body added with little activator and antioxidant and has the advantages such as high SO2 absorbing capacity, low energy consumption and high purity of renewed SO2, and the defects of the existing sulfur dioxide removal techniques are well solved.
Description
Technical field
The present invention relates to environmental conservation and chemical gases separation field, particularly relate to a kind of de-from gaseous mixture
Regeneratable absorbent except sulfur dioxide.
Background technology
The main flue gas desulfurization technique of domestic application at present, either external " the limestone Gypsum Fibrosum introduced
Method ", " rotary spraying and drying method ", or domestic ammonia process, Dual alkali, sodium alkali, ammonia process etc.,
All have that by-product purposes is wide and garbage is difficult to dispose, absorbent can not regenerate, it is impossible to repeat profit
With, while desulfurization, produce new CO2Or NH3The problems such as polluted by nitrogen, with China's sustainable development war
Slightly do not correspond.
The patent No. 200710048743.6, inventor Xiao nine is high, Wang Zhi and etc., invention is a kind of from mixing
Removing and reclaim the absorbent of sulfur dioxide in gas, its bulk composition is organic sun of 2-50% mass concentration
The material that ion, the inorganic anion of 2-50% mass concentration form, the alkylol of 0.1-3% mass concentration
Amine absorbs as the activator of scrubbing CO_2, the phenols of 0.1-0.2% mass concentration, quinones substance
The antioxidant of agent, the metal-oxide of 0.1-0.2% mass concentration or inorganic salt are as the inhibition of absorbent
Agent.It absorbs temperature 20-80 DEG C, regeneration temperature 85-130 DEG C, and by-product is the SO of 99% concentrations above2
Gas.
Number of patent application 201110192179.1, inventor hair pine and cypress, Wang Dong etc., a kind of Gao Xuan of invention
Selecting property SO2Absorbent, its bulk composition be one or more unitary organic amines or binary organic amine,
One or more weak acid or middle strong acid, antioxidant is the hindered phenol of 0.1-0.4%, and containing 0.1-0.2%
Imidazoline corrosion inhibitor.It absorbs temperature 30-60 DEG C, regeneration temperature 105-130 DEG C, and by-product is 95%
The SO of concentrations above2Gas.
Number of patent application 201410275142.9, inventor's Song Wan autumn, Ma Na etc., invention one removing
The renewable serotonin absorbent of sulfur dioxide in flue gas, its bulk composition is N, N '-ethoxy second two
Amine, diethylenetriamine, sulfolane, N methyldiethanol amine, monoethanolamine, hydroxyethylethylene diamine, piperazine
One or more in piperazine, durol diamidogen or derivatives thereof, total content 8～10%；Auxiliary element 1
For 2-amino-2-methyl-1-propanol, 2-send pyridine ethanol, 1,8-menthanediamine, N, N-dihydroxy ethyl second
Diamidogen, N-hydroxyethyl imidazole, tert-butylamine base ethanol, tertiary fourth aminoethoxyethanol, 1,2-(double tertiary fourths
Aminoethoxy) one or more in ethane, total content 1～5%；Auxiliary element 2 is basic carbonate
One or more in copper, vanadic anhydride, metavanadate, antimony potassium tartrate.It absorbs temperature
25-80 DEG C, regeneration temperature 90-130 DEG C, by-product is the SO of 98% concentrations above2Gas.
The Regeneratable absorbent that the present invention provides, based on hydroxyethyl diamine sulfate, adds a small amount of activation
Agent and antioxidant, have SO2Absorbability is big, energy consumption is low, regeneration SO2Purity high, relatively
Solve well the shortcoming that existing sulfur dioxide removal technology exists, it is achieved that flue gas desulfurization device efficient
Change, resource, meet the developing goal of country's recycling economy.
Summary of the invention
Present invention aim to address subproblem present in existing sulfur dioxide removal technology, it is provided that one
Plant the Regeneratable absorbent of scrubbing CO_2.
It is an object of the invention to be achieved through the following technical solutions:
A kind of Regeneratable absorbent of scrubbing CO_2, as follows including component and mass fraction:
Host component: 10-32 part；Activator: 1-5 part；Antioxidant: 0.1-1 part；Water 65-90
Part.
Further, described host component is hydroxyethyl diamine sulfate.
Further, described hydroxyethyl diamine is selected from N-hydroxyethyl piperazine, N, N '-bis-(ethoxy)
Piperazine, N-hydroxyethyl imidazole, N, N '-bis-(ethoxy) imidazoles, N-hydroxyethyl-ethylenediamine, N, N '-
Double (ethoxy) ethylenediamine, N-ethoxy propane diamine, N, N '-bis-(ethoxy) propane diamine, N-
Ethoxy hexamethylene diamine, N, one or more in N '-bis-(ethoxy) propane diamine.
Further, in described hydroxyethyl diamine sulfate, the mol ratio of sulfate radical and hydroxyethyl diamine is
0.4-1.2。
Further, described sulfate radical is 0.6-1.0 with the mol ratio of hydroxyethyl diamine.
Further, described activator is secondary amine and alkyl alcoholamine.
Further, one or more in piperazine, imidazoles, 2-methylimidazole of described secondary amine.
Further, described alkyl alcoholamine includes diethanolamine, tert-butylamine base ethanol, 2-amino-2-first
One or more of base-1-propanol.
Further, described antioxidant is hydroquinone, N, double (3-(3, the 5-di-t-butyl-4-of N-
Hydroxy phenyl) propionyl) one or both in hexamethylene diamine.
Further, the pH value of described Regeneratable absorbent is 3-8.
Beneficial effects of the present invention: the absorbent that the present invention provides in use, uses low temperature absorption, adds
Hot recycling, simultaneously by-product high concentration SO2, can be as producing liquid SO2, sulphuric acid, the product such as sulfur excellent
Good raw material, makes SO2Turn waste into wealth, it is achieved that the high efficiency of flue gas desulfurization device, resource, meet state
The developing goal of family's recycling economy.
This absorbent absorbs the SO in gaseous mixture at low temperature 20-60 DEG C2Gas, high temperature 85-120 DEG C
Lower parsed, produced the concentration SO more than 99% (butt)2Side-product, absorbent obtains again
Raw, recycle.
Accompanying drawing explanation
Fig. 1 be employed in embodiment containing SO2Process of desulfurizing gases flow chart.
Detailed description of the invention
In order to the present invention is better described, below in conjunction with the accompanying drawing in the embodiment of the present invention, real to the present invention
The technical scheme executed in example is clearly and completely described.
Embodiment 1
Certain chemical company uses H2S burns acid-making process, for industry restructuring, extracts 10000Nm out3/h
Combustion gas reclaims SO2, produce liquid SO2.SO in gas2Content is 242845mg/Nm3(8.5%),
Temperature is 200 DEG C, pressure: 10kPa, uses such as the technological process of accompanying drawing 1:
Antacid flue gas initially enters water scrubber 1 dedusting cooling, is re-fed into absorption tower 2, the SO in flue gas2
Being absorbed by absorbent, exit gas is vented.Absorb SO2After rich solution entered lean by the bottom of tower through rich solution pump 3
Rich solution heat exchanger 4, enters regenerator 5 top after reclaiming heat.The SO desorbed2Together with steam through cold
After condenser 9 cooling, it is separated off moisture through gas-liquid separator 10, obtains the product SO of purity 99.5%2
Gas, Song Xia workshop section uses.The condensed water separated that is condensed in regeneration gas is delivered to by reflux pump 11 again
Raw tower 5 top.Rich solution enters from regenerator top, by stripping desorption part SO2, subsequently into again
Boiling device 6 so that it is in SO2Desorbing further.Desorbing SO2After lean solution by regenerator 5 end flow out, warp
After lean pump 7, poor rich liquid heat exchanger 4, enter top, absorption tower 2 through lean solution cooler 8.Absorbent
Cyclic constitutes continuous absorption and desorbing SO2Technical process.
Absorbent consists of: N-hydroxyethyl piperazine sulfate 28% (weight), diethanolamine+piperazine 5%
(weight), hydroquinone 0.1% (weight), remaining composition are water.Absorbent pH value 3～6.8.
Relevant parameter is as shown in the table:
Utilizing this absorbent formula, desulfuration efficiency is high, product SO2Gas content is high, steady quality.
Embodiment 2
Certain oil plant CLAUS sulfur recovery unit, SO in reformed gas2Content is 0.9%, and temperature is 200 DEG C,
Pressure: 4kPa, uses such as the technological process of accompanying drawing 1:
Convert gas and initially enter water scrubber 1 dedusting cooling, be re-fed into absorption tower 2, the SO in flue gas2Quilt
Absorbent absorbs, and exit gas is vented.Absorb SO2After rich solution entered rich or poor by the bottom of tower through rich solution pump 3
Liquid heat exchanger 4, enters regenerator 5 top after reclaiming heat.The SO desorbed2Condensed together with steam
After device 9 cooling, it is separated off moisture through gas-liquid separator 10, obtains the product SO of purity 99.5%2Gas,
Song Xia workshop section uses.The condensed water separated that is condensed in regeneration gas is delivered to regenerator by reflux pump 11
5 tops.Rich solution enters from regenerator top, by stripping desorption part SO2, subsequently into reboiler 6,
Make SO therein2Desorbing further.Desorbing SO2After lean solution by regenerator 5 end flow out, through lean pump 7,
After poor rich liquid heat exchanger 4, enter top, absorption tower 2 through lean solution cooler 8.Absorbent cyclic structure
Become continuous absorption and desorbing SO2Technical process.
Solution composition is: N, N '-bis-(ethoxy) piperazine sulfate+N-hydroxyethyl piperazine sulfate
25% (weight), piperazine 5% (weight), hydroquinone 0.16% (weight), remaining composition are water,
Absorbent pH value 3～6.8.
Relevant parameter is as shown in the table:
Utilizing this solution formula, absorbent detergent power is strong, can be by the SO in flue gas2It is removed to 35
mg/Nm3Below, it is achieved ultra-clean discharge.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not
Being confined to this, any those familiar with the art, can in the technical scope of present disclosure
The change readily occurred in or replacement, all should contain within protection scope of the present invention.Therefore, this
Bright protection domain should be as the criterion with the protection domain of claims.
Claims (10)
1. the Regeneratable absorbent of a scrubbing CO_2, it is characterised in that include component and quality
Number is as follows:
Host component: 10-32 part；Activator: 1-5 part；Antioxidant: 0.1-1 part；Water 65-90
Part.
The Regeneratable absorbent of scrubbing CO_2 the most according to claim 1, it is characterised in that
Described host component is hydroxyethyl diamine sulfate.
The Regeneratable absorbent of scrubbing CO_2 the most according to claim 2, it is characterised in that
Described hydroxyethyl diamine is selected from N-hydroxyethyl piperazine, N, N '-bis-(ethoxy) piperazine, N-ethoxy
Imidazoles, N, N '-bis-(ethoxy) imidazoles, N-hydroxyethyl-ethylenediamine, N, N '-bis-(ethoxys)
Ethylenediamine, N-ethoxy propane diamine, N, N '-bis-(ethoxy) propane diamine, N-ethoxy hexamethylene diamine,
N, N ' one or more in-bis-(ethoxy) propane diamine.
The Regeneratable absorbent of scrubbing CO_2 the most according to claim 2, it is characterised in that
In described hydroxyethyl diamine sulfate, sulfate radical is 0.4-1.2 with the mol ratio of hydroxyethyl diamine.
The Regeneratable absorbent of scrubbing CO_2 the most according to claim 4, it is characterised in that
Described sulfate radical is 0.6-1.0 with the mol ratio of hydroxyethyl diamine.
The Regeneratable absorbent of scrubbing CO_2 the most according to claim 1, it is characterised in that
Described activator is secondary amine and alkyl alcoholamine.
The Regeneratable absorbent of scrubbing CO_2 the most according to claim 6, it is characterised in that
One or more in piperazine, imidazoles, 2-methylimidazole of described secondary amine.
The Regeneratable absorbent of scrubbing CO_2 the most according to claim 6, it is characterised in that
Described alkyl alcoholamine includes diethanolamine, tert-butylamine base ethanol, the one of 2-amino-2-methyl-1-propanol
Or it is multiple.
The Regeneratable absorbent of scrubbing CO_2 the most according to claim 1, it is characterised in that
Described antioxidant is hydroquinone, N, and N-is double (3-(3,5-di-tert-butyl-hydroxy phenyl) propionyl)
One or both in hexamethylene diamine.
10. according to the Regeneratable absorbent of the arbitrary described scrubbing CO_2 of claim 1-9, its feature
Being, the pH value of described Regeneratable absorbent is 3-8.
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| CN108479311A (en) * | 2018-04-17 | 2018-09-04 | 安徽华铂再生资源科技有限公司 | A kind of method of cyclic absorption secondary lead smelting and ring collection sulfur dioxide in flue gas |
| CN110624364A (en) * | 2019-09-12 | 2019-12-31 | 中国石油化工股份有限公司 | Organic absorbent for removing sulfur dioxide in mixed gas and preparation method |
| CN110876878A (en) * | 2018-09-06 | 2020-03-13 | 中国石油化工股份有限公司 | SO2Absorbent and absorption of SO2Method (2) |
| CN112138518A (en) * | 2019-06-26 | 2020-12-29 | 中石化南京化工研究院有限公司 | High-selectivity flue gas desulfurization absorbent and preparation method thereof |
| CN112915729A (en) * | 2021-02-03 | 2021-06-08 | 四川大学 | High-efficiency SO absorption device2Renewable morpholine composite absorbent |
| CN116603369A (en) * | 2023-04-28 | 2023-08-18 | 成都益志科技有限责任公司 | Absorbent capable of efficiently absorbing sulfur dioxide |
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Application publication date: 20160810 |