DE19828977A1 - Verfahren zur Entfernung saurer Gasbestandteile aus Gasen - Google Patents

Verfahren zur Entfernung saurer Gasbestandteile aus Gasen

Info

Publication number
DE19828977A1
DE19828977A1 DE19828977A DE19828977A DE19828977A1 DE 19828977 A1 DE19828977 A1 DE 19828977A1 DE 19828977 A DE19828977 A DE 19828977A DE 19828977 A DE19828977 A DE 19828977A DE 19828977 A1 DE19828977 A1 DE 19828977A1
Authority
DE
Germany
Prior art keywords
absorbent
component
weight
mono
gas components
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.)
Withdrawn
Application number
DE19828977A
Other languages
German (de)
English (en)
Inventor
Christoph Grosmann
Karl-Heinz Haenzel
Dieter Kolassa
Norbert Asprion
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Priority to DE19828977A priority Critical patent/DE19828977A1/de
Priority to RU2001102293/15A priority patent/RU2227060C2/ru
Priority to BR9911708-8A priority patent/BR9911708A/pt
Priority to AU47764/99A priority patent/AU756811B2/en
Priority to JP2000556855A priority patent/JP4705241B2/ja
Priority to EP99931156A priority patent/EP1091796B1/de
Priority to DE59906371T priority patent/DE59906371D1/de
Priority to PCT/EP1999/004366 priority patent/WO2000000271A1/de
Priority to AT99931156T priority patent/ATE245469T1/de
Priority to CA002336043A priority patent/CA2336043C/en
Priority to CNB998081108A priority patent/CN1136031C/zh
Priority to IDW20002697A priority patent/ID29380A/id
Priority to US09/720,783 priority patent/US6436174B1/en
Priority to KR1020007014927A priority patent/KR100572286B1/ko
Priority to EG78399A priority patent/EG22272A/xx
Priority to ARP990103101A priority patent/AR019165A1/es
Priority to MYPI99002674A priority patent/MY124243A/en
Priority to PE1999000775A priority patent/PE20001149A1/es
Publication of DE19828977A1 publication Critical patent/DE19828977A1/de
Withdrawn legal-status Critical Current

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
    • 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
    • B01D53/1487—Removing organic compounds
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
    • C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
    • C10K1/14—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic
    • C10K1/143—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic containing amino groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Gas Separation By Absorption (AREA)
  • Treating Waste Gases (AREA)
DE19828977A 1998-06-29 1998-06-29 Verfahren zur Entfernung saurer Gasbestandteile aus Gasen Withdrawn DE19828977A1 (de)

Priority Applications (18)

Application Number Priority Date Filing Date Title
DE19828977A DE19828977A1 (de) 1998-06-29 1998-06-29 Verfahren zur Entfernung saurer Gasbestandteile aus Gasen
RU2001102293/15A RU2227060C2 (ru) 1998-06-29 1999-06-23 Способ удаления газовых компонентов кислотного характера из газов
BR9911708-8A BR9911708A (pt) 1998-06-29 1999-06-23 Processo para a remoção de constituintes gasosos ácidos, meio de absorção, e, uso de um meio de absorção.
AU47764/99A AU756811B2 (en) 1998-06-29 1999-06-23 Method for removing acid gas components from gases
JP2000556855A JP4705241B2 (ja) 1998-06-29 1999-06-23 ガスからの酸性ガス成分の除去法
EP99931156A EP1091796B1 (de) 1998-06-29 1999-06-23 Verfahren zur entfernung saurer gasbestandteile aus gasen
DE59906371T DE59906371D1 (de) 1998-06-29 1999-06-23 Verfahren zur entfernung saurer gasbestandteile aus gasen
PCT/EP1999/004366 WO2000000271A1 (de) 1998-06-29 1999-06-23 Verfahren zur entfernung saurer gasbestandteile aus gasen
AT99931156T ATE245469T1 (de) 1998-06-29 1999-06-23 Verfahren zur entfernung saurer gasbestandteile aus gasen
CA002336043A CA2336043C (en) 1998-06-29 1999-06-23 Method for removing acid gas components from gases
CNB998081108A CN1136031C (zh) 1998-06-29 1999-06-23 从气体中除去酸性气体组分的方法
IDW20002697A ID29380A (id) 1998-06-29 1999-06-23 Penhilangan konstituen gas asam dari gas
US09/720,783 US6436174B1 (en) 1998-06-29 1999-06-23 Method for removing acid gas components from gases
KR1020007014927A KR100572286B1 (ko) 1998-06-29 1999-06-23 가스로부터 산성 가스 성분의 제거 방법
EG78399A EG22272A (en) 1998-06-29 1999-06-27 Removal of acidic gas constituents from gases
ARP990103101A AR019165A1 (es) 1998-06-29 1999-06-28 Proceso destinado a remover constituyentes gaseosos acidos, del grupo integrado por co2, h2s, cos, cs2 y mercaptanos de gases, de acuerdo al cualen una etapa de absorcion un gas sin tratar rico en constituyentes gaseosos acidos es puesto en contacto con un medio de absorcion y dicho medio deabsorcio
MYPI99002674A MY124243A (en) 1998-06-29 1999-06-28 Method for removing acid gas components from gases
PE1999000775A PE20001149A1 (es) 1998-06-29 1999-08-02 Eliminacion de constituyentes gaseosos acidos de los gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19828977A DE19828977A1 (de) 1998-06-29 1998-06-29 Verfahren zur Entfernung saurer Gasbestandteile aus Gasen

Publications (1)

Publication Number Publication Date
DE19828977A1 true DE19828977A1 (de) 1999-12-30

Family

ID=7872390

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19828977A Withdrawn DE19828977A1 (de) 1998-06-29 1998-06-29 Verfahren zur Entfernung saurer Gasbestandteile aus Gasen
DE59906371T Expired - Lifetime DE59906371D1 (de) 1998-06-29 1999-06-23 Verfahren zur entfernung saurer gasbestandteile aus gasen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59906371T Expired - Lifetime DE59906371D1 (de) 1998-06-29 1999-06-23 Verfahren zur entfernung saurer gasbestandteile aus gasen

Country Status (17)

Country Link
US (1) US6436174B1 (enExample)
EP (1) EP1091796B1 (enExample)
JP (1) JP4705241B2 (enExample)
KR (1) KR100572286B1 (enExample)
CN (1) CN1136031C (enExample)
AR (1) AR019165A1 (enExample)
AT (1) ATE245469T1 (enExample)
AU (1) AU756811B2 (enExample)
BR (1) BR9911708A (enExample)
CA (1) CA2336043C (enExample)
DE (2) DE19828977A1 (enExample)
EG (1) EG22272A (enExample)
ID (1) ID29380A (enExample)
MY (1) MY124243A (enExample)
PE (1) PE20001149A1 (enExample)
RU (1) RU2227060C2 (enExample)
WO (1) WO2000000271A1 (enExample)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6270739B1 (en) 2000-06-16 2001-08-07 Eastman Chemical Company Process for the removal of carbon dioxide from 3,4-epoxy-1-butene process recycle streams
WO2002024838A1 (en) * 2000-09-15 2002-03-28 Ingen Process Limited Purification of natural hydrocarbons
WO2003009924A1 (de) * 2001-07-20 2003-02-06 Basf Aktiengesellschaft Verfahren zur entfernung saurer gase aus einem gasstrom
WO2011144544A1 (de) * 2010-05-18 2011-11-24 Basf Se Verfahren zur entfernung von kohlendioxid (co2) aus einem kreisgassystem
WO2012012027A1 (en) * 2010-07-20 2012-01-26 Powerspan Corp. Absorption media for scrubbing co2 from a gas stream and methods using the same
WO2012038868A1 (en) * 2010-09-20 2012-03-29 Prateek Bumb Solvent composition for carbon dioxide recovery
US8586796B2 (en) 2008-07-15 2013-11-19 Basf Se Process to purify dialkyl sulfides
WO2014004020A1 (en) * 2012-06-29 2014-01-03 Dow Global Technologies Llc Aqueous alkanolamine solution and process for the removal of h2s from gaseous mixtures
US8814989B2 (en) 2010-05-18 2014-08-26 Basf Se Process for removing carbon dioxide (CO2) from a cycle gas system
US11331623B2 (en) 2013-03-14 2022-05-17 Stamicarbon B.V. Acting Under The Name Of Mt Innovation Center COS and CS2 abatement method
DE102021105154A1 (de) 2021-03-03 2022-09-08 Universität Duisburg-Essen Verfahren und Absorbens zur Absorption von Kohlendioxid aus der Luft

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19933301A1 (de) 1999-07-15 2001-01-18 Basf Ag Verfahren zum Entfernen von Mercaptanen aus Fluidströmen
DE19947845A1 (de) * 1999-10-05 2001-04-12 Basf Ag Verfahren zum Entfernen von COS aus einem Kohlenwasserstoff-Fluidstrom und Waschflüssikgkeit zur Verwendung in derartigen Verfahren
DE10028637A1 (de) 2000-06-09 2001-12-13 Basf Ag Verfahren zum Entsäuern eines Kohlenwasserstoff-Fluidstroms
DE10036173A1 (de) * 2000-07-25 2002-02-07 Basf Ag Verfahren zum Entsäuern eines Fluidstroms und Waschflüssigkeit zur Verwendung in einem derartigen Verfahren
FR2814379B1 (fr) * 2000-09-26 2002-11-01 Inst Francais Du Petrole Procede de desacidification d'un gaz par absorption dans un solvant avec un controle de la temperature
DE10139453A1 (de) * 2001-08-10 2003-02-20 Basf Ag Verfahren und Absorptionsmittel zur Entfernung saurer Gase aus Fluiden
BR0306705B1 (pt) 2002-01-14 2011-10-04 processo para a remoção de dióxido de carbono e opcionalmente de sulfeto de hidrogênio e/ou sulfeto de carbonila de uma corrente gasosa, e, lìquido absorvente.
DE10306254A1 (de) * 2003-02-14 2004-08-26 Basf Ag Absorptionsmittel und Verfahren zur Entfernung saurer Gase aus Fluiden
JP5154795B2 (ja) * 2003-03-21 2013-02-27 ダウ グローバル テクノロジーズ エルエルシー 硫化カルボニルを含む酸性ガスからそれを除去する改良された組成物及び方法
RU2378039C2 (ru) * 2003-04-04 2010-01-10 Борд Оф Риджентс, Дзе Юниверсити Оф Техас Систем Смеси полиамина/щелочной соли для удаления двуокиси углерода из газовых потоков
WO2005044955A1 (de) * 2003-11-10 2005-05-19 Basf Aktiengesellschaft Verfahren zur gewinnung eines unter hohem druck stehenden sauergasstroms durch entfernung der sauergase aus einem fluidstrom
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
US7442233B2 (en) * 2005-07-06 2008-10-28 Basf Catalysts Llc Integrated heavy hydrocarbon removal, amine treating and dehydration
US8480795B2 (en) * 2005-08-09 2013-07-09 Exxonmobil Research And Engineering Company Absorbent composition containing molecules with a hindered amine and a metal sulfonate, phosphonate or carboxylate structure for acid gas scrubbing process
US20070148069A1 (en) * 2005-12-23 2007-06-28 Shrikar Chakravarti Carbon dioxide recovery from flue gas and the like
JP5230080B2 (ja) 2006-06-06 2013-07-10 三菱重工業株式会社 吸収液、ｃｏ２の除去装置及び方法
RU2329858C2 (ru) * 2006-08-30 2008-07-27 Федеральное государственное унитарное предприятие "Научно-исследовательский физико-химический институт имени Л.Я. Карпова" Способ повышения давления диоксида углерода при абсорбционном выделении его из газовых смесей (термосорбционный компрессор)
CN101143286B (zh) * 2006-09-15 2010-05-12 南化集团研究院 从酸性气流中除去cos的方法
JP5215595B2 (ja) 2007-06-18 2013-06-19 三菱重工業株式会社 吸収液、吸収液を用いたｃｏ２又はｈ２ｓ除去装置及び方法
KR100920116B1 (ko) 2007-09-27 2009-10-05 한국전력공사 산성가스 분리용 고효율 흡수제
CN101422684B (zh) * 2007-11-02 2012-09-05 南化集团研究院 从酸性气流中除去cos的溶剂
US7938887B2 (en) * 2008-01-08 2011-05-10 Board Of Regents, The University Of Texas System Acidic gas capture by diamines
CN101318099B (zh) * 2008-07-10 2012-07-04 昆明理工大学 低温条件下脱除有机硫的工艺方法
KR101022617B1 (ko) 2008-08-12 2011-03-16 한국전력공사 흡수제를 이용한 산성가스 분리방법
US8501125B2 (en) * 2008-10-08 2013-08-06 Expansion Energy, Llc System and method of carbon capture and sequestration, environmental remediation, and metals recovery
US7947240B2 (en) 2008-10-08 2011-05-24 Expansion Energy, Llc System and method of carbon capture and sequestration
CA2750458C (en) 2009-01-29 2017-10-24 Basf Se Absorbent comprising amino acids and acidic promoter for removing acidic gases
US8221712B2 (en) 2009-05-12 2012-07-17 Basf Se Absorption medium for the selective removal of hydrogen sulfide from fluid streams
KR101113637B1 (ko) 2009-06-29 2012-02-14 기아자동차주식회사 피퍼라지늄 트리플루오로아세테이트 화합물 이산화탄소 흡수제
KR101094327B1 (ko) 2009-09-24 2011-12-19 한국전력공사 산성가스 분리용 흡수제
US9192876B2 (en) * 2009-08-21 2015-11-24 IOR Technology PTY Ltd. Separation of light hydrocarbons and sour species from a sour gas
CN102051244B (zh) * 2009-10-28 2014-04-02 中国石油化工股份有限公司 高酸性石油天然气的高效净化脱硫剂
KR101157141B1 (ko) 2009-12-28 2012-06-22 한국에너지기술연구원 입체장애 시클릭 아민이 첨가된 알칼리탄산염계 이산화탄소 흡수제 및 이를 이용한 이산화탄소 제거방법
WO2011088008A1 (en) * 2010-01-12 2011-07-21 Board Of Regents, The University Of Texas System Acidic gas removal by aqueous amine solvents
RU2445255C2 (ru) * 2010-03-12 2012-03-20 Закрытое акционерное общество Производственная компания "Лаборатория импульсной техники" (ЗАО ПК "ЛИТ") Способ утилизации сероводорода, содержащегося в газах
AU2011296309B2 (en) * 2010-09-02 2014-11-20 The Regents Of The University Of California Method and system for capturing carbon dioxide and/or sulfur dioxide from gas stream
KR101193087B1 (ko) * 2011-01-04 2012-10-19 경희대학교 산학협력단 입체장애가 도입된 2급 알칸올아민과 디올을 포함하는 비수계 이산화탄소 흡수제
JP5659084B2 (ja) 2011-05-30 2015-01-28 株式会社東芝 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
KR101316543B1 (ko) 2011-06-27 2013-10-15 한국에너지기술연구원 재생에너지를 최소화하는 연속 이산화탄소 포집 방법
US20130243677A1 (en) * 2012-03-14 2013-09-19 Exxonmobil Research And Engineering Company Amine treating process for selective acid gas separation
WO2013169880A1 (en) * 2012-05-08 2013-11-14 Chevron U.S.A. Inc. Systems and methods of inhibiting foam formation using multiphase turbines
JP5986796B2 (ja) * 2012-05-11 2016-09-06 三菱重工業株式会社 複合アミン吸収液、ｃｏ２又はｈ２ｓ又はその双方の除去装置及び方法
PL2861697T3 (pl) * 2012-06-15 2017-05-31 Dow Global Technologies Llc Sposób obróbki skroplonych węglowodorów z zastosowaniem związków 3-(amino)propano-1,2-dioli
CN104411806A (zh) * 2012-06-29 2015-03-11 陶氏环球技术有限责任公司 用于提高从气体混合物除去硫化氢的包含哌嗪水性烷醇胺吸收剂组合物及其使用方法
KR101422670B1 (ko) 2012-07-10 2014-07-24 강기준 암모니아수에 의한 전처리를 통한 에너지 절감형 산성가스 제거 방법
EP4427835A1 (en) * 2013-01-31 2024-09-11 Carbon Clean Solutions Limited Carbon capture solvents and methods for using such solvents
EP2767325A1 (en) * 2013-02-14 2014-08-20 Shell Internationale Research Maatschappij B.V. Process for the removal of carbon dioxide from a gas
CN104415651A (zh) * 2013-08-23 2015-03-18 天津市奔晟新材料科技开发有限公司 一种高效恶臭吸收剂
EP3062912A1 (en) * 2013-10-30 2016-09-07 Dow Global Technologies LLC Hybrid solvent formulations for total organic sulfur removal and total acidic gas removal
WO2015065839A1 (en) * 2013-10-30 2015-05-07 Dow Globlal Technologies Llc Hybrid solvent formulations for selective h2s removal
CN103706222B (zh) * 2013-12-19 2016-02-10 福建省邵武市永晶化工有限公司 一种废气净化处理系统
EP3185989B1 (de) 2014-08-25 2021-08-11 Basf Se Entfernung von schwefelwasserstoff und kohlendioxid aus einem fluidstrom
EP2990090A1 (de) 2014-08-25 2016-03-02 Basf Se Absorptionsmittel zur selektiven Entfernung von Schwefelwasserstoff aus einem Fluidstrom
MY190418A (en) 2014-08-25 2022-04-21 Basf Se Removal of carbon dioxide from a fluid flow, using a tert butylamine and an activator
EP3186222B1 (de) 2014-08-25 2018-06-06 Basf Se Diamin mit tert-alkylamino- und primärer aminogruppe zur verwendung in der gaswäsche
ES2842276T3 (es) * 2014-10-10 2021-07-13 Dow Global Technologies Llc Procedimiento para la retirada de gases ácidos de mezclas gaseosas usando una solución acuosa de 2-dimetilamino-2-hidroximetil-1,3-propanodiol
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US6436174B1 (en) 2002-08-20
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EG22272A (en) 2002-12-31
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