公开(公告)号：US10717038B2

公开(公告)日：2020-07-21

申请号：US15560354

申请日：2016-03-18

Applicant: RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTH ,  NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Firoz Alam Chowdhury ,  Tsuguhiro Kato ,  Yoichi Matsuzaki ,  Masami Onoda

IPC: B01D53/14 ,  C01B32/50 ,  B01D53/78 ,  B01D53/62

Abstract: Disclosed is an absorbing liquid for separating and capturing carbon dioxide from a carbon dioxide-containing gas, the absorbing liquid containing: at least one alkanolamine represented by formula (1) wherein R1 represents hydrogen or C1-4 alkyl, R2 and R3 are identical or different and each represent hydrogen or C1-3 alkyl, R1, R2, and R3 are not all hydrogen, and n is 1 or 2; a low-molecular-weight diol compound and/or glycerin; and water.

公开(公告)号：US09931610B2

公开(公告)日：2018-04-03

申请号：US14899478

申请日：2014-06-27

Applicant: RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTH

Inventor： Katsunori Yogo ,  Firoz Alam Chowdhury ,  Hidetaka Yamada

IPC: B01D53/02 ,  B01J20/26 ,  B01J20/06 ,  B01J20/08 ,  B01J20/18 ,  B01J20/20 ,  B01J20/28 ,  B01J20/32 ,  B01J20/34 ,  B01J20/16 ,  B01J20/10 ,  C01B32/50 ,  B01D53/04 ,  B01D53/047

CPC classification number: B01J20/261 ,  B01D53/02 ,  B01D53/0462 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2253/202 ,  B01D2253/25 ,  B01D2253/306 ,  B01D2253/308 ,  B01D2256/22 ,  B01D2257/504 ,  B01D2258/06 ,  B01J20/06 ,  B01J20/08 ,  B01J20/103 ,  B01J20/165 ,  B01J20/18 ,  B01J20/20 ,  B01J20/28057 ,  B01J20/28059 ,  B01J20/28061 ,  B01J20/28064 ,  B01J20/28066 ,  B01J20/28069 ,  B01J20/28071 ,  B01J20/28073 ,  B01J20/28076 ,  B01J20/3204 ,  B01J20/321 ,  B01J20/3272 ,  B01J20/3433 ,  B01J20/3483 ,  C01B32/50 ,  Y02C10/04 ,  Y02C10/06 ,  Y02C10/08 ,  Y02P20/152

Abstract: Disclosed are a carbon dioxide separating material comprising a polyamine carrier in which a polyamine having at least two isopropyl groups on one or more of the nitrogen atoms is loaded on a support, and a method for separating or recovering carbon dioxide using the carbon dioxide separating material.

公开(公告)号：US20160001220A1

公开(公告)日：2016-01-07

申请号：US14769972

申请日：2014-02-14

Applicant: RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTH ,  NIPPON STEEL & SUMITOMO METAL CORPORATION

Inventor： Takayuki Higashii ,  Firoz Alam Chowdhury ,  Kazuya Goto ,  Yoichi Matsuzaki ,  Masami Onoda

IPC: B01D53/14

CPC classification number: B01D53/1493 ,  B01D53/1475 ,  B01D53/92 ,  B01D2252/2041 ,  B01D2252/20415 ,  B01D2252/20426 ,  B01D2252/504 ,  Y02C10/04 ,  Y02C10/06

Abstract: Disclosed are a liquid for absorbing and recovering carbon dioxide from a carbon dioxide-containing gas, and a method for absorbing and recovering carbon dioxide using the liquid. The liquid comprises a secondary amine compound (A) represented by Formula (1) R—NH—(CH2)n—OH, a polyamine compound (B) represented by Formula (2) R1R2N—(X)m—NR3R4, and water (C), the content of the secondary amine compound (A) being 50 wt % or more.

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液体，以及使用该液体吸收和回收二氧化碳的方法。 液体包含由式（1）表示的仲胺化合物（A）R-NH-（CH 2）n -OH，由式（2）表示的多胺化合物（B）R1R2N-（X）m-NR3R4和水 （C）中，仲胺化合物（A）的含量为50重量％以上。