WO1999051326A1 - Procede de recyclage d'absorbant liquide pour vapeur d'acide, qui comprend de la methyldiethanolamine et une alkylpiperazine inferieure - Google Patents
Procede de recyclage d'absorbant liquide pour vapeur d'acide, qui comprend de la methyldiethanolamine et une alkylpiperazine inferieure Download PDFInfo
- Publication number
- WO1999051326A1 WO1999051326A1 PCT/JP1999/001721 JP9901721W WO9951326A1 WO 1999051326 A1 WO1999051326 A1 WO 1999051326A1 JP 9901721 W JP9901721 W JP 9901721W WO 9951326 A1 WO9951326 A1 WO 9951326A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- absorption
- absorbent
- absorbing
- temperature
- Prior art date
Links
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
- B01D53/1493—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
- B01D53/14—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Definitions
- the present invention relates to a method for effectively regenerating an acidic gas absorbing liquid by absorbing the acidic gas with an acidic gas absorbing liquid and then desorbing the acidic gas.
- the absorbing solution is regenerated by easily desorbing the acidic gas with low energy consumption and reusing as the absorbing solution. If they could be used, their industrial utility would increase even more dramatically, but no method was known.
- an object of the present invention is to provide an acidic gas absorbing solution containing methylgenolamine and lower alkylpiperazine, which absorbs the acidic gas, and then effectively removes the acidic gas from the acidic gas absorbing solution at a relatively low temperature. And a method for regenerating the absorbent.
- the acidic gas absorbing solution can be effectively desorbed from the acidic gas absorbing solution to regenerate the acidic gas absorbing solution.
- the acidic gas absorbing solution that absorbs the acidic gas and is regenerated later contains methyl jetanolamine and lower alkylpiperazine.
- methyl jetanolamine is 20 to 70% by weight, preferably Alternatively, it is contained as a component of a 40 to 60% by weight aqueous solution.
- Lower alkylpiperazine is a piperazine derivative having one or two lower alkyl groups having 1 to 4 carbon atoms as a substituent in a heterocyclic ring, and a preferred one among these is methylbiperazine. 2-Methylpiperazine and 2,5-dimethylbiperazine are preferred.
- the lower alkyl pyrazine is contained as a component of an aqueous solution of 0.5 to 7.5% by weight, preferably 1.5 to 4.5% by weight.
- Examples of the gas treated by the acid gas absorbent regenerated according to the present invention include coal gasification gas, synthesis gas, coke oven gas, petroleum gas, and natural gas.
- the present inventors have, in the high pressure C 0 2 separator reproducing apparatus having the basic configuration shown in FIG. 1, by circulating an appropriate mixed with simulated flue gas of nitrogen gas and C0 2 gas, the following the acid gas absorbing liquid in test conditions C0 2 was absorbed, the test was carried out to then C0 2 to play the desorbed acid gas absorbing liquid.
- regenerator temperature 4 0 ° C indicates a high regeneration effect of 6 0%
- regenerator temperature 6 0 ° C in C0 2 recoveries 95% or more
- a very high regeneration effect of 8 0 ° C in C0 2 recovery reaches above 99%.
- Figure 1 is a conceptual diagram showing an embodiment of using a high regenerative potential type acidic gas absorbent according to the present invention (0 2 minutes away recovery device.
- FIG. 2 is a graph showing a change in vapor pressure with a change in the temperature of the absorbent.
- Figure 3 is a graph showing the solubility of the relationship between C0 2 partial pressure of such MDEA + MP absorption liquid to the present invention.
- Figure 4 is a graph showing the relationship solubility and C0 2 partial pressure of MDEA + P absorption liquid according to a comparative example.
- FIG. 5 is a graph showing the relationship between the regeneration tower temperature and the difference between the C0 2 opening and the padding.
- Figure 6 is a Dara off showing the C0 2 absorption time, the relationship between the C0 2 concentration in the absorbing solution.
- FIG. 7 is a graph showing the relationship between temperature and C0 2 recovery of the regenerator.
- FIG. 8 is a graph showing the gas-side reference overall capacity coefficient (K G a) ratio.
- FIG. 9 is a graph showing the time-dependent change in the concentration of the thermostable salt in the absorbing solution.
- the flue gas is led to the absorption tower 1 through the CO 2 -containing gas supply port 4.
- the gas pushed into the absorption tower 1 is supplied from the nozzle 7 at a certain concentration of methylgenolamine and a lower alkyl piperazine.
- the gas is brought into countercurrent contact with the absorbing liquid containing the gas in the filling section 2, and CO 2 in the gas is absorbed and removed by the absorbing liquid, and the gas is discharged from the CO 2 gas outlet 5.
- Absorbing liquid supplied to the absorption tower 1 absorbs C0 2, the heat exchanger 1 4, is sent to pressure heat sink 8, it is heated and sent to the regenerator 1 5.
- the absorbing liquid flows from the nozzle 16 to the lower part through the filling part 17. C0 2 absorption solution by elimination to play during this time.
- the regenerated absorbent is returned to the absorption tower 1 from the absorbent supply port 6 through the heat exchanger 14 and the absorbent cooler 26 by the pump 9.
- an aqueous solution containing 45% by weight of methylethanolamine and 3% by weight of 2-methylpiperazine was prepared.
- an aqueous solution containing 45% by weight of methylgenolamine and 3% by weight of piperazine was prepared.
- the absorption solution to be regenerated by the present invention is comparable to the conventional type of MDEA + P absorption solution in terms of its corrosiveness. I understand.
- the absorbing liquid was supplied C0 2 so as to keep the 1 0 ata total pressure to elaborate the absorbing liquid tank Ri Zhang, sampling the over time to the liquid , to analyze the C0 2 amount that dissolved in the liquid, was to evaluate the penetration rate of the absorption liquid.
- the temperature of the absorption liquid tank was kept at 40 :.
- the absorption liquid tank was stirred at 300 rpm during the reaction, and the amount of the absorption liquid charged was 625 g.
- Figure 6 shows the test results. It is understood that MDEA + MP according to the present invention is superior in absorption rate.
- acid gas absorbing fluid to which the present invention is directed when compared with the absorption liquid which has been used conventionally, is equivalent in basic properties, it is understood to be excellent in the C0 2 absorption rate You.
- Fig. 7 shows the results.
- MDEA + MP absorption liquid in the case of the temperature of the regenerator 4 0, show a high C0 2 recovery rate of 6 0% regeneration temperature is 6 O t:
- the reproduction method of the acidic gas absorbent liquid of the present invention is the absorption liquid effectively It can be confirmed that they are used.
- the absorption capacity and regenerative capacity of the MDEA + MP absorption solution are far superior to those of the MDEA + P absorption solution.
- the method for regenerating an acidic gas absorbent according to the present invention effectively regenerates an acidic gas absorbent containing methyljetanolamine and lower alkylpiperazine from a relatively low temperature of 40. It is understood that regeneration is particularly effective at a temperature of 60 ° C. or higher.
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002286605A CA2286605C (en) | 1998-04-06 | 1999-04-01 | Method for regeneration of an acid gas absorbing fluid containing methyldiethanolamine and a (lower alkyl) piperazine |
US09/445,246 US6423282B1 (en) | 1998-04-06 | 1999-04-01 | Method for the regeneration of an acid gas absorbing fluid containing methydiethanolamine and a (lower alkyl) piperazine |
EP99912093A EP1016445B1 (en) | 1998-04-06 | 1999-04-01 | Method for recycling liquid absorbent for acid vapor comprising methyldiethanolamine and lower alkylpiperazine |
AU30553/99A AU750962B2 (en) | 1998-04-06 | 1999-04-01 | Method for recycling liquid absorbent for acid vapor comprising methyldiethanolamine and lower alkylpiperazin |
JP55028899A JP3322405B2 (ja) | 1998-04-06 | 1999-04-01 | メチルジエタノールアミンと低級アルキルピペラジンを含有する酸性ガス吸収液の再生方法 |
DE69914447T DE69914447T2 (de) | 1998-04-06 | 1999-04-01 | Verfahren zur wiedergewinnung von flüssigen absorbentien für säuredampf, die methyldiethandamine und alkylpiperazine enthalten |
NO19995926A NO317578B1 (no) | 1998-04-06 | 1999-12-03 | Fremgangsmate for regenerering av et fluid som absorberer surgass, hvilket fluid inneholder metyldietanolamin og et (lavere alkyl) -piperazin |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9297898 | 1998-04-06 | ||
JP10/92978 | 1998-04-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999051326A1 true WO1999051326A1 (fr) | 1999-10-14 |
Family
ID=14069490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/001721 WO1999051326A1 (fr) | 1998-04-06 | 1999-04-01 | Procede de recyclage d'absorbant liquide pour vapeur d'acide, qui comprend de la methyldiethanolamine et une alkylpiperazine inferieure |
Country Status (11)
Country | Link |
---|---|
US (1) | US6423282B1 (ja) |
EP (1) | EP1016445B1 (ja) |
JP (1) | JP3322405B2 (ja) |
CN (1) | CN1129467C (ja) |
AU (1) | AU750962B2 (ja) |
CA (1) | CA2286605C (ja) |
DE (1) | DE69914447T2 (ja) |
ID (1) | ID22938A (ja) |
NO (1) | NO317578B1 (ja) |
RU (1) | RU2191621C2 (ja) |
WO (1) | WO1999051326A1 (ja) |
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JP2012143744A (ja) * | 2010-12-22 | 2012-08-02 | Toshiba Corp | 酸性ガス吸収剤、酸性ガス除去方法および酸性ガス除去装置 |
WO2013027668A1 (ja) * | 2011-08-19 | 2013-02-28 | 国立大学法人九州大学 | イオン濃度勾配発生システム、装置、方法、及び、温度応答性電解質材料 |
WO2016121176A1 (ja) * | 2015-01-26 | 2016-08-04 | 三菱重工業株式会社 | 吸収液及び吸収液の調整方法、co2又はh2s又はその双方の除去装置及び方法 |
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DE10139453A1 (de) * | 2001-08-10 | 2003-02-20 | Basf Ag | Verfahren und Absorptionsmittel zur Entfernung saurer Gase aus Fluiden |
US7056482B2 (en) * | 2003-06-12 | 2006-06-06 | Cansolv Technologies Inc. | Method for recovery of CO2 from gas streams |
CA2576454C (en) | 2005-04-04 | 2010-06-08 | Mitsubishi Heavy Industries, Ltd. | Absorbing solution that removes any one of co2 and h2s or both, and method and apparatus that uses the absorbing solution |
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US9133407B2 (en) | 2011-02-25 | 2015-09-15 | Alstom Technology Ltd | Systems and processes for removing volatile degradation products produced in gas purification |
US8864878B2 (en) | 2011-09-23 | 2014-10-21 | Alstom Technology Ltd | Heat integration of a cement manufacturing plant with an absorption based carbon dioxide capture process |
US8911538B2 (en) | 2011-12-22 | 2014-12-16 | Alstom Technology Ltd | Method and system for treating an effluent stream generated by a carbon capture system |
DE102012200907A1 (de) | 2012-01-23 | 2013-07-25 | Evonik Industries Ag | Verfahren und Absorptionsmedium zur Absorption von CO2 aus einer Gasmischung |
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DE102012207509A1 (de) | 2012-05-07 | 2013-11-07 | Evonik Degussa Gmbh | Verfahren zur Absorption von CO2 aus einer Gasmischung |
US9101912B2 (en) | 2012-11-05 | 2015-08-11 | Alstom Technology Ltd | Method for regeneration of solid amine CO2 capture beds |
US20140171716A1 (en) * | 2012-12-14 | 2014-06-19 | Uop Llc | Separation of impurities from a hydrocarbon-containing gas stream |
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DE102015212749A1 (de) | 2015-07-08 | 2017-01-12 | Evonik Degussa Gmbh | Verfahren zur Entfeuchtung von feuchten Gasgemischen |
US10898891B2 (en) * | 2015-08-20 | 2021-01-26 | Eco-Tec Ltd. | Process for stripping carbamate from ion exchange resin |
FR3045058B1 (fr) * | 2015-12-11 | 2017-12-29 | Ifp Energies Now | Nouvelles polyamines, leur procede de synthese et leur utilisation pour l'elimination selective de l'h2s d'un effluent gazeux comprenant du co2 |
EP3257843A1 (en) | 2016-06-14 | 2017-12-20 | Evonik Degussa GmbH | Method of preparing a high purity imidazolium salt |
DE102016210484A1 (de) | 2016-06-14 | 2017-12-14 | Evonik Degussa Gmbh | Verfahren zur Entfeuchtung von feuchten Gasgemischen |
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EP3257568B1 (de) | 2016-06-14 | 2019-09-18 | Evonik Degussa GmbH | Verfahren zur entfeuchtung von feuchten gasgemischen mit ionischen flüssigkeiten |
WO2018207657A1 (ja) * | 2017-05-12 | 2018-11-15 | 株式会社クラレ | 含硫黄化合物除去装置および含硫黄化合物除去方法 |
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JP6847799B2 (ja) | 2017-09-21 | 2021-03-24 | 株式会社東芝 | 二酸化炭素吸収剤及び二酸化炭素除去装置 |
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1999
- 1999-01-04 RU RU2000100363/12A patent/RU2191621C2/ru not_active IP Right Cessation
- 1999-04-01 JP JP55028899A patent/JP3322405B2/ja not_active Expired - Fee Related
- 1999-04-01 EP EP99912093A patent/EP1016445B1/en not_active Expired - Lifetime
- 1999-04-01 CA CA002286605A patent/CA2286605C/en not_active Expired - Fee Related
- 1999-04-01 ID IDW991519A patent/ID22938A/id unknown
- 1999-04-01 WO PCT/JP1999/001721 patent/WO1999051326A1/ja active IP Right Grant
- 1999-04-01 CN CN99800269A patent/CN1129467C/zh not_active Expired - Fee Related
- 1999-04-01 US US09/445,246 patent/US6423282B1/en not_active Expired - Lifetime
- 1999-04-01 AU AU30553/99A patent/AU750962B2/en not_active Ceased
- 1999-04-01 DE DE69914447T patent/DE69914447T2/de not_active Expired - Lifetime
- 1999-12-03 NO NO19995926A patent/NO317578B1/no not_active IP Right Cessation
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012143744A (ja) * | 2010-12-22 | 2012-08-02 | Toshiba Corp | 酸性ガス吸収剤、酸性ガス除去方法および酸性ガス除去装置 |
WO2013027668A1 (ja) * | 2011-08-19 | 2013-02-28 | 国立大学法人九州大学 | イオン濃度勾配発生システム、装置、方法、及び、温度応答性電解質材料 |
JPWO2013027668A1 (ja) * | 2011-08-19 | 2015-03-19 | 国立大学法人九州大学 | イオン濃度勾配発生システム、装置、方法、及び、温度応答性電解質材料 |
US10137409B2 (en) | 2011-08-19 | 2018-11-27 | Kyushu University, National University Corporation | System, device and method for generating ion concentration gradient, and temperature-responsive electrolyte material |
US10300432B2 (en) | 2011-08-19 | 2019-05-28 | Kyushu University, National University Corporation | System, device, and method for producing ion concentration gradient, and temperature-responsive electrolyte material |
US10695714B2 (en) | 2011-08-19 | 2020-06-30 | Kyushu University, National University Corporation | System, device, and method for producing ion concentration gradient, and temperature-responsive electrolyte material |
WO2016121176A1 (ja) * | 2015-01-26 | 2016-08-04 | 三菱重工業株式会社 | 吸収液及び吸収液の調整方法、co2又はh2s又はその双方の除去装置及び方法 |
JP2016137422A (ja) * | 2015-01-26 | 2016-08-04 | 三菱重工業株式会社 | 吸収液及び吸収液の調整方法、co2又はh2s又はその双方の除去装置及び方法 |
US10456737B2 (en) | 2015-01-26 | 2019-10-29 | Mitsubishi Heavy Industries Engineering, Ltd. | Absorbing liquid, method for preparing absorbing liquid, and device and method for removing CO2 or H2S or both |
Also Published As
Publication number | Publication date |
---|---|
DE69914447D1 (de) | 2004-03-04 |
NO995926L (no) | 2000-02-03 |
CA2286605A1 (en) | 1999-10-14 |
ID22938A (id) | 1999-12-16 |
EP1016445B1 (en) | 2004-01-28 |
CN1129467C (zh) | 2003-12-03 |
CA2286605C (en) | 2003-03-11 |
NO317578B1 (no) | 2004-11-15 |
RU2191621C2 (ru) | 2002-10-27 |
CN1258226A (zh) | 2000-06-28 |
EP1016445A1 (en) | 2000-07-05 |
AU750962B2 (en) | 2002-08-01 |
DE69914447T2 (de) | 2004-12-02 |
NO995926D0 (no) | 1999-12-03 |
AU3055399A (en) | 1999-10-25 |
JP3322405B2 (ja) | 2002-09-09 |
EP1016445A4 (en) | 2001-11-07 |
US6423282B1 (en) | 2002-07-23 |
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