Removal of carbon dioxide from flue gases
    1.
    发明授权
    Removal of carbon dioxide from flue gases 有权
    从烟道气中去除二氧化碳

    公开(公告)号:US07887620B2

    公开(公告)日:2011-02-15

    申请号:US12304312

    申请日:2007-06-13

    IPC分类号: B01D53/14

    摘要: A description is given of a process for removing carbon dioxide from gas streams in which the partial pressure of the carbon dioxide is less than 200 mbar, in particular flue gases, the gas stream being contacted with a liquid absorption medium which comprises an aqueous solution (A) of a tertiary aliphatic alkanolamine and (B) an activator of the formula R1—NH—R2—NH2, where R1 is C1-C6-alkyl and R2 is C2-C6-alkylene, the sum of the concentrations of A and B being 2.5 to 7 mol/l, and the molar ratio of B to A being in the range of 1:3 to 1.5:1. The activator is, for example, 3-methylaminopropylamine, the tertiary aliphatic amine methyldiethanolamine, methyldiisopropanolamine or n-butyldiethanolamine. The process permits substantial removal of carbon dioxide and the regeneration of the absorption medium is possible with relatively low energy consumption.

    摘要翻译: 给出了从气流中除去二氧化碳的过程的描述,其中二氧化碳的分压小于200毫巴,特别是烟道气,气流与包含水溶液的液体吸收介质接触( A)的叔脂肪族链烷醇胺和(B)式R1-NH-R2-NH2的活化剂,其中R1是C1-C6-烷基,R2是C2-C6-亚烷基,A和B的浓度之和 为2.5〜7mol / l,B与A的摩尔比为1:3〜1.5:1。 活化剂是例如3-甲基氨基丙胺,叔脂族胺甲基二乙醇胺,甲基二异丙醇胺或正丁基二乙醇胺。 该方法允许基本上去除二氧化碳,并且以相对低的能量消耗可以进行吸收介质的再生。

    Method for the Removal of Carbon Dioxide From Flue Gases
    2.
    发明申请
    Method for the Removal of Carbon Dioxide From Flue Gases 审中-公开
    从烟气中去除二氧化碳的方法

    公开(公告)号:US20080098892A1

    公开(公告)日:2008-05-01

    申请号:US10592419

    申请日:2005-03-09

    IPC分类号: B01D53/14

    摘要: The invention relates to a method for the removal of carbon dioxide from a gas flow, in which the partial pressure of the carbon dioxide in the gas flow is less than 200 mbar, whereby the gas flow is brought into contact with a liquid absorption agent, comprising an aqueous solution (A) of a tertiary aliphatic amine and (B) an activator of general formula R1-NH-R2-NH2, where R1=C1-C6 alkyl and R2=C2-C6 alkylene. The method is particularly suitable for treatment of flue gases and also relates to an absorption agent.

    摘要翻译: 本发明涉及一种从气流中除去二氧化碳的方法,其中气流中二氧化碳的分压小于200毫巴,由此使气流与液体吸收剂接触, 包括叔脂族胺的水溶液(A)和(B)通式为R 1,-NH-R 2,-NH 2的活化剂, 其中R 1是C 1 -C 6烷基,R 2是C 2 C 6 -C 6亚烷基。 该方法特别适用于烟道气的处理,也涉及吸收剂。

    Absorption medium and deacidification of fluid streams
    4.
    发明授权
    Absorption medium and deacidification of fluid streams 有权
    吸收介质和流体流的脱酸

    公开(公告)号:US07666813B2

    公开(公告)日:2010-02-23

    申请号:US11073618

    申请日:2005-03-08

    IPC分类号: B01J20/22

    摘要: An absorption medium for deacidifying fluid streams which has improved oxidation stability includes at least one aliphatic amine, and at least one non-hydroquinoid antioxidant. The absorption medium may be employed in deacidifying a fluid stream, in particular an oxygen-containing fluid stream, when the fluid stream is brought into intimate contact with the absorption medium in at least one absorption step.

    摘要翻译: 用于使具有改善的氧化稳定性的流体流脱酸的吸收介质包括至少一种脂族胺和至少一种非氢醌抗氧化剂。 当在至少一个吸收步骤中使流体流与吸收介质紧密接触时,吸收介质可用于使流体流,特别是含氧流体物流脱酸。

    Method For The Removal Of Carbon Dioxide From Gas Flows With Low Carbon Dioxide Partial Pressures
    6.
    发明申请
    Method For The Removal Of Carbon Dioxide From Gas Flows With Low Carbon Dioxide Partial Pressures 审中-公开
    采用低二氧化碳部分压力从气流中去除二氧化碳的方法

    公开(公告)号:US20080025893A1

    公开(公告)日:2008-01-31

    申请号:US10592420

    申请日:2005-03-09

    IPC分类号: B01D53/14

    CPC分类号: B01D53/1493 Y02C10/06

    摘要: The invention relates to a method for the removal of carbon dioxide from a gas flow with a carbon dioxide partial pressure in the gas flow of less than 200 mbar, whereby the gas flow is brought into contact with a liquid absorption agent, selected from an aqueous solution (A) of an amino compound with at least two tertiary amino groups in the molecule and (B) an activator, selected from the primary and secondary amines, or (A) a tertiary aliphatic amine, the reaction enthalpy ΔRH for the protonation of which is greater than that for methyldiethanolamine and (B) an activator, selected from 3-methylaminopropylamine, piperazine, 2-methylpiperazine, N-methylpiperazine, homopiperazine, piperidine and morpholine. The method is particularly suitable for the treatment of flue gases and also relates to an absorption agent.

    摘要翻译: 本发明涉及一种从气流中二氧化碳分压小于200毫巴的气流中除去二氧化碳的方法,由此使气流与液体吸收剂接触,液体吸收剂选自水溶液 在分子中具有至少两个叔氨基的氨基化合物的溶液(A)和(B)选自伯胺和仲胺的活化剂,或(A)叔脂族胺,反应焓ΔR 其质子化度大于甲基二乙醇胺和(B)选自3-甲基氨基丙胺,哌嗪,2-甲基哌嗪,N-甲基哌嗪,高哌嗪,哌啶和吗啉的活化剂。 该方法特别适用于烟道气的处理,也涉及一种吸收剂。

    REMOVAL OF CARBON DIOXIDE FROM FLUE GASES
    7.
    发明申请
    REMOVAL OF CARBON DIOXIDE FROM FLUE GASES 有权
    从燃气中去除二氧化碳

    公开(公告)号:US20090199711A1

    公开(公告)日:2009-08-13

    申请号:US12304312

    申请日:2007-06-13

    IPC分类号: B01D53/14 B01D19/00

    摘要: A description is given of a process for removing carbon dioxide from gas streams in which the partial pressure of the carbon dioxide is less than 200 mbar, in particular flue gases, the gas stream being contacted with a liquid absorption medium which comprises an aqueous solution (A) of a tertiary aliphatic alkanolamine and (B) an activator of the formula R1—NH—R2—NH2, where R1 is C1-C6-alkyl and R2 is C2-C6-alkylene, the sum of the concentrations of A and B being 2.5 to 7 mol/l, and the molar ratio of B to A being in the range of 1:3 to 1.5:1. The activator is, for example, 3-methylaminopropylamine, the tertiary aliphatic amine methyldiethanolamine, methyidiisopropanolamine or n-butyldiethanolamine. The process permits substantial removal of carbon dioxide and the regeneration of the absorption medium is possible with relatively low energy consumption.

    摘要翻译: 给出了从气流中除去二氧化碳的过程的描述,其中二氧化碳的分压小于200毫巴,特别是烟道气,气流与包含水溶液的液体吸收介质接触( A)的叔脂肪族链烷醇胺和(B)下式的活化剂:式中:α-in-line-formula description =“In-line Formulas”end =“lead”→R1-NH-R2-NH2, line-formula description =“In-line Formulas”end =“tail”?>其中R1是C1-C6-烷基,R2是C2-C6-亚烷基,A和B的浓度之和为2.5〜7mol / 1,B与A的摩尔比在1:3至1.5:1的范围内。 活化剂是例如3-甲基氨基丙胺,叔脂族胺甲基二乙醇胺,甲基二异丙醇胺或正丁基二乙醇胺。 该方法允许基本上去除二氧化碳,并且以相对低的能量消耗可以进行吸收介质的再生。