CN108144415A - A kind of absorbing liquid of phase transformation trapping hydrogen sulfide - Google Patents
A kind of absorbing liquid of phase transformation trapping hydrogen sulfide Download PDFInfo
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- CN108144415A CN108144415A CN201711178822.9A CN201711178822A CN108144415A CN 108144415 A CN108144415 A CN 108144415A CN 201711178822 A CN201711178822 A CN 201711178822A CN 108144415 A CN108144415 A CN 108144415A
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- 239000007788 liquid Substances 0.000 title claims abstract description 42
- 230000009466 transformation Effects 0.000 title claims abstract description 9
- 230000005532 trapping Effects 0.000 title abstract description 7
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title description 30
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title description 28
- 150000001412 amines Chemical class 0.000 claims abstract description 50
- 239000003960 organic solvent Substances 0.000 claims abstract description 48
- 239000002250 absorbent Substances 0.000 claims abstract description 16
- 230000002745 absorbent Effects 0.000 claims abstract description 16
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 239000002904 solvent Substances 0.000 claims description 11
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- -1 4-methyl hexamethylene Chemical group 0.000 claims description 7
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 claims description 6
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims description 6
- CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 claims description 5
- LXBGSDVWAMZHDD-UHFFFAOYSA-N 2-methyl-1h-imidazole Chemical compound CC1=NC=CN1 LXBGSDVWAMZHDD-UHFFFAOYSA-N 0.000 claims description 5
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 5
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 5
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 5
- DIOQZVSQGTUSAI-UHFFFAOYSA-N n-butylhexane Natural products CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 claims description 5
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims description 5
- 150000003457 sulfones Chemical group 0.000 claims description 5
- GXDHCNNESPLIKD-UHFFFAOYSA-N 2-methylhexane Natural products CCCCC(C)C GXDHCNNESPLIKD-UHFFFAOYSA-N 0.000 claims description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 4
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 4
- 150000004982 aromatic amines Chemical class 0.000 claims description 4
- 229920000768 polyamine Polymers 0.000 claims description 4
- 229920001223 polyethylene glycol Polymers 0.000 claims description 4
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- HNOQAFMOBRWDKQ-UHFFFAOYSA-N 1,3,5-trimethylpyrazole Chemical class CC=1C=C(C)N(C)N=1 HNOQAFMOBRWDKQ-UHFFFAOYSA-N 0.000 claims description 3
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 claims description 3
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical group COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims description 3
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 claims description 3
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 3
- 229960001124 trientine Drugs 0.000 claims description 3
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 claims description 3
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 2
- CMEWLCATCRTSGF-UHFFFAOYSA-N N,N-dimethyl-4-nitrosoaniline Chemical compound CN(C)C1=CC=C(N=O)C=C1 CMEWLCATCRTSGF-UHFFFAOYSA-N 0.000 claims description 2
- DIOQZVSQGTUSAI-NJFSPNSNSA-N decane Chemical compound CCCCCCCCC[14CH3] DIOQZVSQGTUSAI-NJFSPNSNSA-N 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexamethylene diamine Natural products NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 claims description 2
- GIWQSPITLQVMSG-UHFFFAOYSA-N 1,2-dimethylimidazole Chemical compound CC1=NC=CN1C GIWQSPITLQVMSG-UHFFFAOYSA-N 0.000 claims 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims 1
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims 1
- 150000002460 imidazoles Chemical class 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 40
- 238000000034 method Methods 0.000 abstract description 15
- 238000003795 desorption Methods 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 239000003345 natural gas Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 239000006096 absorbing agent Substances 0.000 description 36
- 239000012071 phase Substances 0.000 description 31
- 230000015572 biosynthetic process Effects 0.000 description 17
- 239000007787 solid Substances 0.000 description 11
- 239000012265 solid product Substances 0.000 description 10
- 238000006477 desulfuration reaction Methods 0.000 description 9
- 230000023556 desulfurization Effects 0.000 description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical class CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 description 3
- BZORFPDSXLZWJF-UHFFFAOYSA-N N,N-dimethyl-1,4-phenylenediamine Chemical class CN(C)C1=CC=C(N)C=C1 BZORFPDSXLZWJF-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000034994 death Effects 0.000 description 2
- 231100000517 death Toxicity 0.000 description 2
- 230000003009 desulfurizing effect Effects 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000009279 wet oxidation reaction Methods 0.000 description 2
- 150000008614 2-methylimidazoles Chemical class 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 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
- B01D53/1456—Removing acid components
- B01D53/1468—Removing hydrogen sulfide
-
- 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
- B01D53/1493—Selection of liquid materials for use as 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
-
- 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
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- 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)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention is directed to existing H2The problems such as energy consumption needed for S absorption liquid desorptions is excessively high and S resource utilizations are low disclose a kind of phase transformation trapping H2The absorbing liquid of S, which is mixed by organic amine with organic solvent forms, and absorbs H2S gases can reach the effect of liquid liquid or Solid-liquid demixing.Wherein H2S is rich to be mutually sent into regenerator heating parsing, H2It is recycled after the stingy recycling without any working process of S and absorbs H2S, the treating capacity of solution when reducing desorption, so as to reduce desorption energy consumption, wherein H2Distribution ratios of the S in Fu Xiangzhong can reach more than 93%, be suitable for as H in natural gas, coalification gas, refinery gas etc.2The chemical absorbent of S trappings, belongs to energy-saving and emission-reduction and gas purification technique field.
Description
Technical field
The present invention relates to H in natural gas, coalification gas, refinery gas2S trapping techniques, and in particular to a kind of novel organic amine
Phase transformation absorbing liquid belongs to energy-saving and emission-reduction and field of gas purification.
Background technology
Air environmental pollution is one of main Environmental Problems of facing mankind, wherein CO2、SO2、H2The sour gas such as S pollute
It is more prominent.With the continuous quickening of China's process of industrialization, environmental quality also constantly deteriorates, and environmental problem has been increasingly becoming people
Focus of attention.In recent years, the regional atmosphere polluting problem such as China some areas acid rain, gray haze and photochemical fog is increasingly
Prominent, serious threat health of the masses influences Environmental security.Therefore, it is control air pollution of actively adopting an effective measure, in addition to system
Other than fixed stringent discharge standard, it is also very necessary that new and effective air pollution treatment technology is carried out in research.For
CO2、SO2、H2The control technology of the sour gas such as S is also the key of a n-th-trem relation n energy-saving and emission-reduction, clean manufacturing and circular economy
Technology has great environment, economy and social effect.Hydrogen sulfide is a kind of gas of hypertoxicity, and corrosivity is very big, chemical industry
The presence of hydrogen sulfide not only results in the corrosion of equipment in production, can also bring great potential safety hazard.In the operation of chemical industry
All inevitably there is a large amount of H during Cheng Zhong, especially oil, gas extraction2S gases are produced in the form of associated gas
Go out, due to the highly corrosive of hydrogen sulfide, hydrogen sulfide leakage accident once repeatedly occurs in China's oil exploitation, causes great people
Member's injures and deaths.Especially serious is once on December 23rd, 2003, and the petrochina Chuan Dong positioned at Kai County, Chongqing City high bridge town drills public
The Blowout accident that sieve family 16H wells occur is taken charge of, 243 people is caused to be poisoned to death, 2142 people are injured, 6.5 ten thousand people are by emergency evacuation
Placement.Just because of this, the removing of hydrogen sulfide has become an important research content of exhaust-gas treatment.
There are many kinds of domestic and international sulfur methods, is substantially all according to H2The faintly acid of S and high reproducibility remove it.
In traditional sulfur method, desulfurization technology is broadly divided into two major class：One kind is dry desulfurization, and one kind is wet desulphurization.Dry method
Desulfurization mainly has metal oxide method, activated carbon method, sieve method, Claus methods etc., and dry desulfurization desulfurization rate is slow, desulfurizing agent
Regeneration is difficult, investment operation is costly and difficult to meet the needs of heavy industrialization operation.Wet desulphurization includes wet absorption
And wet oxidation, the main organic alcohol amine of wet absorption, ionic liquid absorption etc.；Wet oxidation mainly has arsyl technique, vanadium base work
Skill, iron-based technique.Wet desulphurization is because rate of sulphur expulsion takes off far above dry desulfurization, available for the thick of removing high-hydrogen sulfide gas
The features such as sulphur, reproducible utilization and be widely used, but desulfurizing agent desorption high energy consumption, regeneration and recycle difficulty be still wet method
The insoluble problem of desulfurization.
Invention content
For the above-mentioned prior art there are the problem of and deficiency, it is superior and can effectively drop that the present invention provides a kind of absorbent properties
Novel natural gas, coalification gas, the Desulfurization For Refinery Gas of low desorption energy consumption, i.e., a kind of phase transformation absorb H2The absorbing liquid of S.The present invention
It is achieved through the following technical solutions：
A kind of phase transformation traps H2The absorbing liquid of S, is made of organic amine absorbent and organic solvent, and the organic amine absorbent is with having
Solvent is the higher organic compound of boiling point and repeats recycling, and wherein organic amine absorbent mass fraction is 15-
35%, organic solvent mass fraction is 65-85%；The organic amine absorbent is N- heterocyclics or chain polyamines class or aromatic amine
Class；The organic solvent is sulfone class or alkanes or ethers.
Wherein, N- heterocyclics for 1,3,5- trimethylpyrazols, 1- methylimidazoles, 2-methylimidazole, 1,2- methylimidazoles,
One or more of 1,4- lupetazins, piperazine, isoquinolin arbitrary proportion mixture.
Chain polyamines class is diethylenetriamine, triethylene diamine, triethylene tetramine, tetraethylenepentamine, ethylenediamine, tetramethyl
One or more of ethylenediamine, 4-methyl-diaminopropane, 4-methyl hexamethylene diamine arbitrary proportion mixture.
Aromatic amine for aniline, p-phenylenediamine, N, N- dimethyl-p-phenylenediamines, the bromo- N of 4-, accelerine, tetramethyl
One or more of p-phenylenediamine arbitrary proportion mixture.
Sulfone class solvent is one or more of dimethyl sulfoxide (DMSO), sulfolane arbitrary proportion mixture.
Alkane solvents are one or more of normal heptane, isoheptane, decane, dodecane, atoleine arbitrary proportion
Mixture.
Ether solvent is diethylene glycol dimethyl ether, two monoether of diethylene glycol, triethylene glycol dimethyl ether, polyethylene glycol dimethyl ether
One or more of arbitrary proportion mixture.
Absorbing liquid of the present invention is suitable for the H of the various concentrations such as natural gas, coalification gas, refinery gas2S gas trappings and
Purification separation, the H of removing2S has higher degree, and can realize reduction desorption energy consumption, and absorbent, solvent can be recycled.
Organic solvent and organic amine absorbent interworking form absorbing liquid, and organic amine viscosity is larger, add in small organic of viscosity
Solvent can reduce the viscosity of whole system, so as to promote H2The mass transport process that S absorbs, improves infiltration rate, and some of which has
Solvent is to H2S also has Physical Absorption effect, and synergistic effect is played with the chemical absorbing of organic amine.Absorbing liquid absorbs H2Divide after S
For liquid liquid or liquid-solid two-phase, for upper phase containing only organic solvent, lower phase is enrichment H2The solution or solid of S.It only need to be by lower phase during regeneration
Rich in H2Rich solution or solid product the feeding regenerator of S, the treating capacity of solution when reducing desorption, so as to reduce desorption energy consumption,
Organic solvent recycling in upper phase can recycle.Therefore, we select higher boiling, low viscosity solvent and the different officials of grafting
The absorbent interworking that can be rolled into a ball, to achieve the purpose that liquid liquid or Solid-liquid demixing.This phase transformation absorbing liquid absorbs H2S has split-phase
Speed is fast, and regeneration energy consumption is low, and the problems such as degrading and corroding is not present, therefore with huge energy-saving potential, be suitable for use as day
H in right gas, coalification gas, refinery gas2The chemical absorbent of S trappings.
The beneficial effects of the invention are as follows：
1st, the change of liquid liquid phase or liquid-solid-phase changeable occur after sour gas is absorbed for absorbing liquid of the present invention, and split-phase speed is fast, then
Raw low energy consumption, and product more preferably detaches after absorption；
2nd, organic amine absorbent and organic solvent select high boiling substance in absorbing liquid of the present invention, have and are not easy to wave
Hair, stablize be not easy to be aoxidized, the advantages such as corrosivity is low, organic amine absorbent, organic solvent have it is highly selective, can be according to difference
Condition, requirement etc. determine required system；
It 3rd, only need to be by H after phase transformation desulfurization compared with traditional sulfur method2S is rich to be mutually sent into stripper heating desorption, can effectively drop
Low desorption energy consumption is simultaneously recycled absorbent, has saved operating cost；
4th, the H in exhaust gas is absorbed with absorbing liquid of the present invention2After S, by the H of enrichment2S is as gaseous state H2The substitute synthesis of S
Organic chemicals, so as to improve the added value of element sulphur.Desorb H during heel row is deflated2S concentration can reach 10mg/m3（Reach country
Standard）.
Specific embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
Be transferred in the absorber of 50mL afterwards, wherein organic amine be 1,3,5- trimethylpyrazols, mass fraction 20%；Organic solvent
For sulfolane, mass fraction 80%.H2S is passed through by gas mass flow controller control in absorber, reacts 15min,
In the liquid-liquid diphase of formation, H in rich phase2The distribution ratio of S is 95.4%.
Embodiment 2
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
Be transferred in the absorber of 50mL afterwards, wherein organic amine be Isosorbide-5-Nitrae-lupetazin, mass fraction 20%；Organic solvent is
Polyethylene glycol dimethyl ether, mass fraction 80%.H2S is passed through by gas mass flow controller control in absorber, is reacted
15min, in the liquid-liquid diphase of formation, H in rich phase2The distribution ratio of S is 95.7%.
Embodiment 3
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
Be transferred in the absorber of 50mL afterwards, wherein organic amine be 1- methylimidazoles, mass fraction 25%；Organic solvent is different heptan
Alkane, mass fraction 75%.H2S is passed through by gas mass flow controller control in absorber, reacts 15min, centrifugation point
From, in the liquid-solid two-phase of formation, H in solid product2The distribution ratio of S is 94.8%.
Embodiment 4
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
Be transferred in the absorber of 50mL afterwards, wherein organic amine be isoquinolin, mass fraction 25%；Organic solvent is normal heptane,
Mass fraction is 75%.H2S is passed through by gas mass flow controller control in absorber, reacts 15min, the liquid liquid of formation
In two-phase, H in rich phase2The distribution ratio of S is 95.1%.
Embodiment 5
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
Be transferred in the absorber of 50mL afterwards, wherein organic amine be diethylenetriamine, mass fraction 30%；Organic solvent is diformazan
Base sulfoxide, mass fraction 70%.H2S is passed through by gas mass flow controller control in absorber, reacts 15min, from
The heart detaches, in the liquid-solid two-phase of formation, H in solid product2The distribution ratio of S is 96.3%.
Embodiment 6
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
Be transferred in the absorber of 50mL afterwards, wherein organic amine be triethylene tetramine, mass fraction 30%；Organic solvent is three second
Glycol dimethyl ether, mass fraction 70%.H2S is passed through by gas mass flow controller control in absorber, is reacted
15min is centrifuged, in the liquid-solid two-phase of formation, H in solid product2The distribution ratio of S is 96.1%.
Embodiment 7
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
Be transferred in the absorber of 50mL afterwards, wherein organic amine be tetraethylenepentamine, mass fraction 15%；Organic solvent is 12
Alkane, mass fraction 85%.H2S is passed through by gas mass flow controller control in absorber, reacts 15min, centrifugation point
From, in the liquid-solid two-phase of formation, H in solid product2The distribution ratio of S is 93.7%.
Embodiment 8
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
It is transferred in the absorber of 50mL afterwards, it is 2 that wherein organic amine, which is mass ratio,:1 triethylene diamine and tetramethylethylenediamine it is mixed
Close liquid, mass fraction 30%；Organic solvent is sulfolane, mass fraction 70%.H2S is controlled by gas mass flow
Device control is passed through in absorber, reacts 15min, is centrifuged, in the liquid-solid two-phase of formation, H in solid product2The distribution ratio of S
It is 96.9%.
Embodiment 9
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
Be transferred in the absorber of 50mL afterwards, wherein organic amine be ethylenediamine, mass fraction 30%；Organic solvent is that mass ratio is
1:1 diethylene glycol dimethyl ether and the mixture of triethylene glycol dimethyl ether, mass fraction 70%.H2S passes through gas mass flow
Amount controller control is passed through in absorber, reaction 15min, in the liquid-liquid diphase of formation, H in rich phase2The distribution ratio of S is 96.3%.
Embodiment 10
Under normal temperature and pressure, a certain amount of Amine Solutions and a certain amount of organic solvent are sufficiently mixed in the beaker of 50mL
It is even, after be transferred in the absorber of 50mL, wherein organic amine be N, N- dimethyl-p-phenylenediamine's solution, mass fraction 25%；
Organic solvent is sulfolane, mass fraction 75%.H2S is passed through by gas mass flow controller control in absorber, instead
Answer 15min, in the liquid-liquid diphase of formation, H in rich phase2The distribution ratio of S is 95.8%.
Embodiment 11
Under normal temperature and pressure, a certain amount of Amine Solutions and a certain amount of organic solvent are sufficiently mixed in the beaker of 50mL
It is even, after be transferred in the absorber of 50mL, wherein organic amine be N, N- dimethyl-p-phenylenediamine's solution, mass fraction 35%；
Organic solvent is atoleine, mass fraction 65%.H2S is passed through by gas mass flow controller control in absorber,
15min is reacted, is centrifuged, H in solid product in the liquid-solid two-phase of formation2S distribution ratios can reach 96.5%.
Embodiment 12
Under normal temperature and pressure, a certain amount of Amine Solutions and a certain amount of organic solvent are sufficiently mixed in the beaker of 50mL
It is even, after be transferred in the absorber of 50mL, wherein organic amine be p-phenylenediamine solution, mass fraction 30%；Organic solvent is
Dimethyl sulfoxide (DMSO), mass fraction 70%.H2S is passed through by gas mass flow controller control in absorber, is reacted
15min, in the liquid-liquid diphase of formation, H in rich phase2The distribution ratio of S is 95.9%.
Embodiment 13
Under normal temperature and pressure, a certain amount of Amine Solutions and a certain amount of organic solvent are sufficiently mixed in the beaker of 50mL
It is even, after be transferred in the absorber of 50mL, wherein organic amine be 1,2- methylimidazole solution, mass fraction 35%；It is organic
Solvent is decane, mass fraction 65%.H2S is passed through by gas mass flow controller control in absorber, is reacted
15min, in the liquid-liquid diphase of formation, H in rich phase2The distribution ratio of S is 94.8%.
Embodiment 14
Under normal temperature and pressure, a certain amount of Amine Solutions and a certain amount of organic solvent are sufficiently mixed in the beaker of 50mL
It is even, after be transferred in the absorber of 50mL, it is 1 that wherein organic amine, which is mass ratio,:1:1 1- methylimidazoles, 2-methylimidazole and
The mixture of 1,2- methylimidazole, mass fraction 15%；Organic solvent is polyethylene glycol dimethyl ether, and mass fraction is
85%。H2S is passed through by gas mass flow controller control in absorber, reaction 15min, in the liquid-liquid diphase of formation, Fu Xiang
Middle H2The distribution ratio of S is 95.8%.
Embodiment 15
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
It is transferred in the absorber of 50mL afterwards, it is 1 that wherein organic amine, which is mass ratio,:1:1 diethylenetriamine, ethylenediamine and tetramethyl oneself
The mixed liquor of diamines, mass fraction 15%；Organic solvent is that mass ratio is 1:1 two monoether of diethylene glycol and poly- diethyl two
The mixed liquor of alcohol diether, mass fraction 85%.H2S is passed through by gas mass flow controller control in absorber, is reacted
15min is centrifuged, in the liquid-solid two-phase of formation, H in solid product2The distribution ratio of S is 95.9%.
Embodiment 16
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
Be transferred in the absorber of 50mL afterwards, wherein organic amine be 4-methyl-diaminopropane, mass fraction 25%；Organic solvent is liquid
Body paraffin, mass fraction 75%.H2S is passed through by gas mass flow controller control in absorber, reacts 15min, shape
Into liquid-liquid diphase in, H in rich phase2The distribution ratio of S is 95.5%.
Embodiment 17
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
It is transferred in the absorber of 50mL afterwards, it is 1 that wherein organic amine, which is mass ratio,:1:1 aniline, tetramethyl-para-phenylene diamine and 4- are bromo-
The mixed liquor of n,N-Dimethylaniline, mass fraction 15%；Organic solvent is that mass ratio is 1:1 dimethyl sulfoxide (DMSO) and ring
The mixed liquor of fourth sulfone, mass fraction 85%.H2S is passed through by gas mass flow controller control in absorber, is reacted
15min is centrifuged, in the liquid-solid two-phase of formation, H in solid product2The distribution ratio of S is 96.2%.
Embodiment 18
Under normal temperature and pressure, a certain amount of organic amine and a certain amount of organic solvent are sufficiently mixed uniformly in the beaker of 50mL,
It is transferred in the absorber of 50mL afterwards, it is 2 that wherein organic amine, which is mass ratio,:The mixed liquor of 1 piperazine and Isosorbide-5-Nitrae-lupetazin,
Mass fraction is 30%；Organic solvent is that mass ratio is 1:1 decane and the mixed liquor of atoleine, mass fraction 70%.
H2S is passed through by gas mass flow controller control in absorber, reacts 15min, is centrifuged, the liquid-solid two-phase of formation
In, H in solid product2The distribution ratio of S is 96.6%.
Claims (7)
1. a kind of phase transformation traps H2The absorbing liquid of S, be made of organic amine absorbent and organic solvent, wherein organic amine absorbent
Mass fraction is 15-35%, and the mass fraction of organic solvent is 65-85%；The organic amine absorbent is N- heterocyclics or chain
Polyamines class or aromatic amine；The organic solvent is sulfone class or alkanes or ethers.
2. absorbing liquid according to claim 1, it is characterised in that：N- heterocyclics are 1,3,5- trimethylpyrazols, 1- methyl
One or more of imidazoles, 2-methylimidazole, DMIZ 1,2 dimethylimidazole, 1,4- lupetazins, piperazine, isoquinolin arbitrarily compare
Example mixture.
3. absorbing liquid according to claim 1, it is characterised in that：Chain polyamines class for diethylenetriamine, triethylene diamine,
One kind in triethylene tetramine, tetraethylenepentamine, ethylenediamine, tetramethylethylenediamine, 4-methyl-diaminopropane, 4-methyl hexamethylene diamine or
Several arbitrary proportion mixtures.
4. absorbing liquid according to claim 1, it is characterised in that：Aromatic amine is aniline, p-phenylenediamine, N, N- dimethyl
One or more of the bromo- N of p-phenylenediamine, 4-, accelerine, tetramethyl-para-phenylene diamine arbitrary proportion mixture.
5. absorbing liquid according to claim 1, it is characterised in that：Sulfone class solvent is one in dimethyl sulfoxide (DMSO), sulfolane
Kind or two kinds of arbitrary proportion mixtures.
6. absorbing liquid according to claim 1, it is characterised in that：Alkane solvents are normal heptane, isoheptane, decane, ten
One or more of dioxane, atoleine arbitrary proportion mixture.
7. absorbing liquid according to claim 1, it is characterised in that：Ether solvent is diethylene glycol dimethyl ether, diethylene glycol
One or more of two monoethers, triethylene glycol dimethyl ether, polyethylene glycol dimethyl ether arbitrary proportion mixture.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108929250A (en) * | 2018-07-27 | 2018-12-04 | 昆明理工大学 | A method of alkyl thiol compound is prepared using hydrogen sulfide absorption liquid |
| CN109012034A (en) * | 2018-07-27 | 2018-12-18 | 昆明理工大学 | A kind of method that phase transformation absorbs sour gas |
| CN109529550A (en) * | 2018-10-22 | 2019-03-29 | 昆明理工大学 | A kind of absorbing liquid of phase transformation capture sulfur dioxide |
| CN113318571A (en) * | 2021-05-27 | 2021-08-31 | 华侨大学 | For capturing CO2Biphasic absorbent and use thereof |
| CN116099331A (en) * | 2022-12-09 | 2023-05-12 | 中国科学院过程工程研究所 | CO (carbon monoxide) 2 H and H 2 S collaborative trapping and separating recovery method |
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| CN105289209A (en) * | 2015-10-19 | 2016-02-03 | 昆明理工大学 | Mixed organic solution for trapping CO2 and SO2 acid gas through phase transformation |
| CN107158888A (en) * | 2017-04-26 | 2017-09-15 | 昆明理工大学 | A kind of phase transformation traps SO2Absorbing liquid |
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| CN105080316A (en) * | 2014-04-29 | 2015-11-25 | 北京化工大学 | Desulfurizer used for removing H2S and method for removing H2S |
| CN105289209A (en) * | 2015-10-19 | 2016-02-03 | 昆明理工大学 | Mixed organic solution for trapping CO2 and SO2 acid gas through phase transformation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108929250A (en) * | 2018-07-27 | 2018-12-04 | 昆明理工大学 | A method of alkyl thiol compound is prepared using hydrogen sulfide absorption liquid |
| CN109012034A (en) * | 2018-07-27 | 2018-12-18 | 昆明理工大学 | A kind of method that phase transformation absorbs sour gas |
| CN109529550A (en) * | 2018-10-22 | 2019-03-29 | 昆明理工大学 | A kind of absorbing liquid of phase transformation capture sulfur dioxide |
| CN113318571A (en) * | 2021-05-27 | 2021-08-31 | 华侨大学 | For capturing CO2Biphasic absorbent and use thereof |
| CN116099331A (en) * | 2022-12-09 | 2023-05-12 | 中国科学院过程工程研究所 | CO (carbon monoxide) 2 H and H 2 S collaborative trapping and separating recovery method |
| CN116099331B (en) * | 2022-12-09 | 2024-09-03 | 中国科学院过程工程研究所 | CO (carbon monoxide)2H and H2S collaborative trapping and separating recovery method |
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