公开(公告)号：US08419831B2

公开(公告)日：2013-04-16

申请号：US12452223

申请日：2008-06-24

Applicant: Shinkichi Shimizu ,  Firoz Alam Chowdhury ,  Hiromichi Okabe ,  Kazuya Goto

Inventor： Shinkichi Shimizu ,  Firoz Alam Chowdhury ,  Hiromichi Okabe ,  Kazuya Goto

IPC: B01D53/14

CPC classification number: B01D53/1493 ,  B01D53/1475 ,  B01D2257/504 ,  C01B32/50 ,  Y02C10/04 ,  Y02C10/06 ,  Y02P20/152

Abstract: Disclosed is a method for recovering carbon dioxide from a gas containing carbon dioxide, comprising the step (1) of bringing a gas containing carbon dioxide into contact with an aqueous solution containing 2-isopropylaminoethanol and at least one substance selected from the group consisting of piperazines and alkanolamines to absorb carbon dioxide into the aqueous solution; and the step (2) of heating the aqueous solution containing carbon dioxide absorbed therein, which is obtained in the step (1), to separate and recover carbon dioxide from the solution.

Abstract translation: 公开了一种从含有二氧化碳的气体中回收二氧化碳的方法，其包括使含有二氧化碳的气体与含有2-异丙基氨基乙醇的水溶液和至少一种选自哌嗪类的物质接触的步骤（1） 和链烷醇胺将二氧化碳吸收到水溶液中; 以及在步骤（1）中获得的加热其中吸收的二氧化碳的水溶液的步骤（2）从溶液中分离和回收二氧化碳。

公开(公告)号：US20130101493A1

公开(公告)日：2013-04-25

申请号：US13806253

申请日：2011-06-28

Applicant: Hiromichi Okabe ,  Firoz Alam Chowdhury ,  Kazuya Goto ,  Masami Onoda ,  Yoichi Matsuzaki

Inventor： Hiromichi Okabe ,  Firoz Alam Chowdhury ,  Kazuya Goto ,  Masami Onoda ,  Yoichi Matsuzaki

IPC: B01D53/14

CPC classification number: B01D53/1493 ,  B01D53/1475 ,  B01D53/62 ,  B01D2252/20405 ,  B01D2252/20426 ,  B01D2252/20484 ,  B01D2252/60 ,  B01D2257/504 ,  Y02C10/04 ,  Y02C10/06

Abstract: Disclosed is an aqueous solution for absorbing and recovering carbon dioxide from a carbon dioxide-containing gas, the aqueous solution containing 50 to 70 wt % of a secondary amine compound represented by Formula (1): wherein R represents a straight- or branched-chain alkyl group having 3 to 5 carbon atoms; and a surfactant. Also disclosed is a method for absorbing and recovering carbon dioxide using the aqueous solution.

Abstract translation: 公开了一种用于从含二氧化碳气体吸收和回收二氧化碳的水溶液，所述水溶液含有50〜70重量％的由式（1）表示的仲胺化合物：其中R表示直链或支链 具有3至5个碳原子的烷基; 和表面活性剂。 还公开了使用该水溶液吸收和回收二氧化碳的方法。

公开(公告)号：US20100126348A1

公开(公告)日：2010-05-27

申请号：US12452223

申请日：2008-06-24

Applicant: Shinkichi Shimizu ,  Firoz Alam Chowdhury ,  Hiromichi Okabe ,  Kazuya Goto

Inventor： Shinkichi Shimizu ,  Firoz Alam Chowdhury ,  Hiromichi Okabe ,  Kazuya Goto

IPC: B01D53/14

CPC classification number: B01D53/1493 ,  B01D53/1475 ,  B01D2257/504 ,  C01B32/50 ,  Y02C10/04 ,  Y02C10/06 ,  Y02P20/152

Abstract: Disclosed is a method for recovering carbon dioxide from a gas containing carbon dioxide, comprising the step (1) of bringing a gas containing carbon dioxide into contact with an aqueous solution containing 2-isopropylaminoethanol and at least one substance selected from the group consisting of piperazines and alkanolamines to absorb carbon dioxide into the aqueous solution; and the step (2) of heating the aqueous solution containing carbon dioxide absorbed therein, which is obtained in the step (1), to separate and recover carbon dioxide from the solution.

Abstract translation: 公开了一种从含有二氧化碳的气体中回收二氧化碳的方法，其包括使含有二氧化碳的气体与含有2-异丙基氨基乙醇的水溶液和至少一种选自哌嗪类的物质接触的步骤（1） 和链烷醇胺将二氧化碳吸收到水溶液中; 以及在步骤（1）中获得的加热其中吸收的二氧化碳的水溶液的步骤（2）从溶液中分离和回收二氧化碳。