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    Method for the removal of carbon dioxide present in gases and absorbent
    1.
    发明授权
    Method for the removal of carbon dioxide present in gases and absorbent 失效
    去除气体和吸收剂中二氧化碳的方法

    公开(公告)号：US6051161A

    公开(公告)日：2000-04-18

    申请号：US106267

    申请日：1998-06-29

    申请人： Hitomi Suzuki ,  Tomio Mimura ,  Toru Iwaki ,  Shigeaki Mitsuoka ,  Hiroshi Tanaka ,  Masaki Iijima

    发明人： Hitomi Suzuki ,  Tomio Mimura ,  Toru Iwaki ,  Shigeaki Mitsuoka ,  Hiroshi Tanaka ,  Masaki Iijima

    IPC分类号： B01D53/34 ,  B01D53/14 ,  B01D53/62 ,  C09K3/00

    CPC分类号： B01D53/1493 ,  B01D53/1475 ,  Y02C10/04 ,  Y02C10/06

    摘要： This invention provides a method for the removal of carbon dioxide present in gases which comprises bringing a CO.sub.2 -containing gas into contact with an aqueous solution containing at least one amine compound of the general formula ##STR1## wherein R.sup.1 to R.sup.8 may be the same or different and each represent a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, and m is 0 or 1. The method of the present invention makes it possible to remove carbon dioxide efficiently. In particular, since carbon dioxide can be easily desorbed by heating the aqueous solution having absorbed carbon dioxide, the thermal energy required for regeneration of the aqueous solution can be reduced.

    摘要翻译： 本发明提供一种除去存在于气体中的二氧化碳的方法，其中包括使含CO 2的气体与含有至少一种通式的胺化合物的水溶液接触，其中R 1至R 8可以相同或不同， 表示氢原子或1〜4个碳原子的烷基，m为0或1.本发明的方法可有效地除去二氧化碳。 特别地，由于二氧化碳容易通过加热吸收了二氧化碳的水溶液而解吸，所以能够降低再生水溶液所需的热能。

    Method for the removal of carbon dioxide present in gases
    2.
    发明授权
    Method for the removal of carbon dioxide present in gases 失效
    去除气体中二氧化碳的方法

    公开(公告)号：US5904908A

    公开(公告)日：1999-05-18

    申请号：US816646

    申请日：1997-03-13

    申请人： Hitomi Suzuki ,  Tomio Mimura ,  Toru Iwaki ,  Shigeaki Mitsuoka ,  Hiroshi Tanaka ,  Masaki Iijima

    发明人： Hitomi Suzuki ,  Tomio Mimura ,  Toru Iwaki ,  Shigeaki Mitsuoka ,  Hiroshi Tanaka ,  Masaki Iijima

    IPC分类号： B01D53/34 ,  B01D53/14 ,  B01D53/62

    CPC分类号： B01D53/1493 ,  B01D53/1475 ,  Y02C10/04 ,  Y02C10/06

    摘要： This invention provides a method for the removal of carbon dioxide present in gases which comprises bringing a CO.sub.2 -containing gas into contact with an aqueous solution containing at least one amine compound of the general formula �1! ##STR1## wherein R.sup.1 to R.sup.8 may be the same or different and each represent a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, and m is 0 or 1. The method of the present invention makes it possible to remove carbon dioxide efficiently. In particular, since carbon dioxide can be easily desorbed by heating the aqueous solution having absorbed carbon dioxide, the thermal energy required for regeneration of the aqueous solution can be reduced.

    摘要翻译： 本发明提供一种除去存在于气体中的二氧化碳的方法，其中包括使含CO 2的气体与含有至少一种通式[1]的胺化合物的水溶液接触，其中R 1至R 8可以相同，或 不同，各自表示氢原子或1〜4个碳原子的烷基，m为0或1.本发明的方法可有效地除去二氧化碳。 特别地，由于二氧化碳容易通过加热吸收了二氧化碳的水溶液而解吸，所以能够降低再生水溶液所需的热能。

    Process for removing carbon dioxide from gases
    3.
    发明授权
    Process for removing carbon dioxide from gases 失效
    从气体中除去二氧化碳的方法

    公开(公告)号：US5618506A

    公开(公告)日：1997-04-08

    申请号：US511290

    申请日：1995-08-04

    申请人： Hitomi Suzuki ,  Atsushi Hayakawa ,  Tomio Mimura ,  Shigeru Shimojo ,  Hidenobu Shimayoshi ,  Masaki Iijima ,  Shigeaki Mitsuoka ,  Toru Iwaki

    发明人： Hitomi Suzuki ,  Atsushi Hayakawa ,  Tomio Mimura ,  Shigeru Shimojo ,  Hidenobu Shimayoshi ,  Masaki Iijima ,  Shigeaki Mitsuoka ,  Toru Iwaki

    IPC分类号： B01D53/14 ,  B01D53/62 ,  C01B17/16

    CPC分类号： B01D53/62 ,  B01D53/1475 ,  B01D53/1493 ,  Y02C10/04 ,  Y02C10/06

    摘要： This invention relates to the process for removing CO.sub.2 from CO.sub.2 -containing gas such as combustion gas. For example, it is the process for removing CO.sub.2 from combustion gas through the contact of the gas at the atmospheric pressure with an aqueous solution of an amine represented by the general formula R.sup.1 NHC(CH.sub.3).sub.2 CH.sub.2 OH in which R.sup.1 is a lower alkyl group having 1-4 carbon atoms, or an aqueous solution containing both an amine represented by the general formula R.sub.2 CHR.sub.3 NHCH.sub.2 CH.sub.2 OH in which R.sup.2 is a hydrogen atom or a lower alkyl group having 1-4 carbon atoms and R.sup.3 is a hydrogen atom or methyl group and a piperazine compound selected from the group consisting of piperazine, 2-methylpiperazine, 2,3-dimethylpiperazine, and 2,5-dimethylpiperazine, or an mixed aqueous amine solution containing a secondary amine and a tertiary amine at concentrations of 10-45% by weight each, or an aqueous solution of a piperazine derivative.

    摘要翻译： 本发明涉及从含CO 2气体如燃烧气体中除去CO 2的方法。 例如，通过大气压下的气体与由通式R 1 NHC（CH 3）2 CH 2 OH表示的胺的水溶液接触，从燃烧气体中除去CO 2的方法，其中R 1是具有1个 -4个碳原子的水溶液，或含有通式为R 2为氢原子或具有1-4个碳原子的低级烷基且R 3为氢原子或甲基的哌嗪化合物的通式为R 2 CHR 3 NHCH 2 CH 2 OH表示的胺的水溶液 选自哌嗪，2-甲基哌嗪，2,3-二甲基哌嗪和2,5-二甲基哌嗪，或者含有浓度为10-45重量％的仲胺和叔胺的混合的胺水溶液， 或哌嗪衍生物的水溶液。

    Apparatus and process for recovering basic amine compounds in a process for removing carbon dioxide
    4.
    发明授权
    Apparatus and process for recovering basic amine compounds in a process for removing carbon dioxide 失效
    在除去二氧化碳的方法中回收碱性胺化合物的装置和方法

    公开(公告)号：US6117404A

    公开(公告)日：2000-09-12

    申请号：US818625

    申请日：1997-03-14

    申请人： Tomio Mimura ,  Hidenobu Shimayoshi ,  Shigeaki Mitsuoka ,  Hiroshi Tanaka ,  Masaki Iijima

    发明人： Tomio Mimura ,  Hidenobu Shimayoshi ,  Shigeaki Mitsuoka ,  Hiroshi Tanaka ,  Masaki Iijima

    IPC分类号： B01D53/34 ,  B01D53/14 ,  B01D53/62 ,  B01D53/18

    CPC分类号： B01D53/1475 ,  B01D53/1425 ,  Y02C10/04 ,  Y02C10/06

    摘要： The present invention provides a process for recovering a basic amine compound which comprises the steps of (a) supplying a CO.sub.2 -containing gas to a carbon dioxide absorption unit in which an absorbing solution, which contains a basic amine compound, absorbs carbon dioxide; (b) bringing the gas, from which carbon dioxide has been removed, into vapor-liquid contact with a washing water at a temperature from 20 to 60.degree. C. in an amine recovering unit of a carbon dioxide removal tower, recovering part of the basic amine compound accompanying the gas into the water phase and discharging the gas as an exhaust gas of the carbon dioxide removal tower; and (c) collecting the basic amine compound which remains in the exhaust gas of the carbon dioxide removal tower by passing the exhaust gas pass through a demister at a temperature from 20 to 60.degree. C. The basic amine compound can be recovered efficiently from the gas of the carbon dioxide removal tower by using the above process.

    摘要翻译： 本发明提供一种回收碱性胺化合物的方法，该方法包括以下步骤：（a）向含有碱性胺化合物的吸收溶液吸收二氧化碳的二氧化碳吸收单元供应含CO 2气体; （b）将二氧化碳除去的气体与20℃至60℃的洗涤水气液接触，在二氧化碳去除塔的胺回收单元中，回收部分 伴随气体进入水相的碱性胺化合物，并且作为二氧化碳去除塔的废气排出气体; 和（c）通过使废气通过除雾器在20℃至60℃的温度下收集留在二氧化碳去除塔的废气中的碱性胺化合物。碱性胺化合物可以从 通过使用上述方法的二氧化碳去除塔的气体。

    Process for removing carbon dioxide from combustion gases
    5.
    发明授权
    Process for removing carbon dioxide from combustion gases 失效
    从燃烧气体中除去二氧化碳的方法

    公开(公告)号：US06689332B1

    公开(公告)日：2004-02-10

    申请号：US08603186

    申请日：1996-02-20

    申请人： Kunihiko Yoshida ,  Tomio Mimura ,  Shigeru Shimojo ,  Mutsunori Karasaki ,  Masaki Iijima ,  Shigeaki Mitsuoka

    发明人： Kunihiko Yoshida ,  Tomio Mimura ,  Shigeru Shimojo ,  Mutsunori Karasaki ,  Masaki Iijima ,  Shigeaki Mitsuoka

    IPC分类号： B01D5362

    CPC分类号： B01D53/1493 ,  B01D53/1475 ,  Y02A50/2342 ,  Y02C10/04 ,  Y02C10/06

    摘要： A process for removing CO2 from a combustion gas which comprises bringing a combustion gas containing oxygen and CO2 and a CO2 absorbent solution into contact at the atmospheric pressure, thereby allowing the CO2 absorbent solution to absorb CO2 from the combustion gas, and, in the ensuing step, heating the absorbent solution that has absorbed CO2 to liberate CO2 and regenerate the CO2 absorbent solution, and circulating the regenerated solution for reuse. An aqueous solution of a hindered amine selected from the group consisting of 2-amino-2-methyl-1-propanol (AMP), 2-(ethylamino)-ethanol (EAE), 2-(methylamino)-ethanol (MAE), and 2-(diethylamino)-ethanol (DEAE) is used as the CO2 absorbent solution, and carbon steel is used in building the members of the equipment that contact the aqueous hindered amine solution. The absorbent solution contains cupric carbonate which is a corrosion inhibitor.

    摘要翻译： 一种从燃烧气体中除去CO 2的方法，该方法包括使含有氧和CO 2的燃烧气体和CO 2吸收剂溶液在大气压下接触，从而使CO 2吸收剂溶液从燃烧气体中吸收CO 2， 加热吸收了二氧化碳的吸收剂溶液以释放二氧化碳并再生二氧化碳吸收剂溶液，再循环再生溶液再利用。 选自2-氨基-2-甲基-1-丙醇（AMP），2-（乙基氨基） - 乙醇（EAE），2-（甲基氨基） - 乙醇（MAE）， 和2-（二乙基氨基） - 乙醇（DEAE）用作CO 2吸收剂溶液，碳钢用于构建与受阻胺水溶液接触的设备的构件。 吸收剂溶液含有作为缓蚀剂的碳酸铜。

    Process for removing carbon dioxide from combustion gases
    6.
    发明授权
    Process for removing carbon dioxide from combustion gases 失效
    从燃烧气体中除去二氧化碳的方法

    公开(公告)号：US5603908A

    公开(公告)日：1997-02-18

    申请号：US651501

    申请日：1996-05-22

    申请人： Kunihiko Yoshida ,  Tomio Mimura ,  Shigeru Shimojo ,  Mutsunori Karasaki ,  Masaki Iijima ,  Touru Seto ,  Shigeaki Mitsuoka

    发明人： Kunihiko Yoshida ,  Tomio Mimura ,  Shigeru Shimojo ,  Mutsunori Karasaki ,  Masaki Iijima ,  Touru Seto ,  Shigeaki Mitsuoka

    IPC分类号： B01D53/14 ,  C01B32/50 ,  B01D53/62

    CPC分类号： C01B31/20 ,  B01D53/1425 ,  Y02C10/04 ,  Y02C10/06 ,  Y02P20/152

    摘要： A process for removing CO.sub.2 from a combustion gas which comprises removing CO.sub.2 from the combustion gas through contact of an aqueous hindered amine solution used as a CO.sub.2 absorbent solution with the combustion gas at atmospheric pressure and then, in a regeneration column, liberating CO.sub.2 from the absorbent solution that has absorbed CO.sub.2 by heating it and thereby regenerating the absorbent solution. The process further comprises a partial absorbent solution regeneration step in at least one stage wherein the absorbent solution that has absorbed CO.sub.2 is heated through heat exchange with a high-temperature regenerated absorbent solution and part of the CO.sub.2 that is liberated is separated from the absorbent solution. Following this, according to the necessity, part of the partially regenerated absorbent solution thus obtained is returned to the step of removing CO.sub.2 from the combustion gas for use as part of the CO.sub.2 absorbent solution while the rest or all of the absorbent solution is heated and fed to a regeneration column further to liberate CO.sub.2 and regenerate the absorbent solution.

    摘要翻译： 一种用于从燃烧气体中除去CO 2的方法，其包括通过在大气压下与用作CO 2吸收剂溶液的水性受阻胺溶液和燃烧气体接触而从燃烧气体中除去CO 2，然后在再生塔中将CO 2从 吸收剂溶液通过加热而吸收CO 2，从而再生吸收剂溶液。 该方法还包括在至少一个阶段中的部分吸收溶液再生步骤，其中吸收了CO 2的吸收剂溶液通过与高温再生吸收剂溶液进行热交换而被加热，并且部分释放的CO 2与吸收剂溶液分离 。 然后，根据需要，由此获得的部分再生的吸收剂溶液的一部分返回到从燃烧气体中除去CO 2作为CO 2吸收剂溶液的一部分的步骤，同时其余部分或全部吸收剂溶液被加热， 进料到再生塔以释放CO 2并再生吸收剂溶液。

    Method for removing carbon dioxide from combustion exhaust gas
    8.
    发明授权
    Method for removing carbon dioxide from combustion exhaust gas 失效
    从燃烧废气中除去二氧化碳的方法

    公开(公告)号：US06500397B1

    公开(公告)日：2002-12-31

    申请号：US09187168

    申请日：1998-11-06

    申请人： Kunihiko Yoshida ,  Tomio Mimura ,  Shigeru Shimojo ,  Mutsunori Karasaki ,  Masaki Iijima ,  Touru Seto ,  Shigeaki Mitsuoka

    发明人： Kunihiko Yoshida ,  Tomio Mimura ,  Shigeru Shimojo ,  Mutsunori Karasaki ,  Masaki Iijima ,  Touru Seto ,  Shigeaki Mitsuoka

    IPC分类号： B01D5362

    CPC分类号： B01D53/1475 ,  B01D53/1493 ,  Y02A50/2342 ,  Y02C10/04 ,  Y02C10/06

    摘要： There are disclosed a method for removing CO2 from a combustion exhaust gas which comprises the step of bringing the combustion exhaust gas under atmospheric pressure into contact with an aqueous solution of a hindered amine selected from the group consisting of 2-amino-2-methyl-1-propanol, 2-methylaminoethanol, 2-ethylamino-ethanol and 2-piperidineethanol; and another method for removing carbon dioxide from a combustion exhaust gas which comprises the step of bringing the combustion exhaust gas under atmospheric pressure into contact with a mixed aqueous solution of 100 parts by weight of an amine compound (X) selected from the group consisting of 2-amino-2-methyl-1, 3-propanediol, 2-amino-2-methyl-1-propanol, 2-amino-2-ethyl-1, 3-propanediol, t-butyldiethanolamine and 2-amino-2-hydroxymethyl-1,3-propanediol; and 1-25 parts by weight of an amine compound (Y) selected from the group consisting of piperazine, piperidine, morpholine, glycine, 2-methylamino-ethanol, 2-piperidineethanol and 2-ethylaminoethanol.

    摘要翻译： 公开了一种从燃烧废气中除去CO 2的方法，其包括使大气压下的燃烧废气与受阻胺的水溶液接触的步骤，所述受阻胺的水溶液选自2-氨基-2-甲基 - 1-丙醇，2-甲基氨基乙醇，2-乙基氨基 - 乙醇和2-哌啶乙醇; 以及从燃烧废气中除去二氧化碳的另一种方法，其包括使大气压下的燃烧废气与100重量份选自以下的胺化合物（X）的混合水溶液接触的步骤： 2-氨基-2-甲基-1,3-丙二醇，2-氨基-2-甲基-1-丙醇，2-氨基-2-乙基-1,3-丙二醇，叔丁基二乙醇胺和2-氨基-2-丙醇， 羟甲基-1,3-丙二醇; 和1-25重量份选自哌嗪，哌啶，吗啉，甘氨酸，2-甲基氨基 - 乙醇，2-哌啶乙醇和2-乙基氨基乙醇的胺化合物（Y）。

    Method for the removal of hydrogen sulfide present in gases
    9.
    发明授权
    Method for the removal of hydrogen sulfide present in gases 失效
    去除存在于气体中的硫化氢的方法

    公开(公告)号：US5609840A

    公开(公告)日：1997-03-11

    申请号：US405628

    申请日：1995-03-15

    申请人： Tomio Mimura ,  Shigeru Shimojo ,  Masaki Iijima ,  Shigeaki Mitsuoka

    发明人： Tomio Mimura ,  Shigeru Shimojo ,  Masaki Iijima ,  Shigeaki Mitsuoka

    IPC分类号： B01D53/14 ,  B01D53/50

    CPC分类号： B01D53/1462 ,  B01D53/1493 ,  B01D2257/304 ,  Y02C10/06

    摘要： This invention relates to methods for the removal of hydrogen sulfide from various gases containing hydrogen sulfide. In order to remove hydrogen sulfide, an aqueous solution containing a di(lower alkyl)amino-(lower alkanol) or triethylenediamine is used. In order to remove hydrogen sulfide selectively from gases containing carbon dioxide and hydrogen sulfide, an aqueous solution containing tert-butyldiethanolamine, triisopropanolamine, triethylenediamine or 2-dimethylamino-2-methyl-1-propanol is used. In order to remove both carbon dioxide and hydrogen sulfide from gases containing carbon dioxide and hydrogen sulfide, an aqueous solution containing a mono(lower alkyl)amino-(lower alkanol) is used.

    摘要翻译： 本发明涉及从含有硫化氢的各种气体中除去硫化氢的方法。 为了除去硫化氢，使用含有二（低级烷基）氨基 - （低级链烷醇）或三亚乙基二胺的水溶液。 为了从含有二氧化碳和硫化氢的气体中选择性地除去硫化氢，使用含有叔丁基二乙醇胺，三异丙醇胺，三亚乙基二胺或2-二甲基氨基-2-甲基-1-丙醇的水溶液。 为了从含有二氧化碳和硫化氢的气体中除去二氧化碳和硫化氢，使用含有单（低级烷基）氨基 - （低级链烷醇）的水溶液。