Title:
ABSORBENT FOR CARBON DIOXIDE, AND METHOD FOR SEPARATING/COLLECTING CARBON DIOXIDE
Document Type and Number:
WIPO Patent Application WO/2019/163867
Kind Code:
A1
Abstract:
Provided are: an absorbent for the efficient separation/collection of carbon dioxide in a carbon dioxide-containing gas with less energy; and a method for separating/collecting carbon dioxide using the absorbent.
An absorbent for the separation/collection of carbon dioxide in a carbon dioxide-containing gas, the absorbent containing at least one alkanol amine compound represented by general formula [1], at least one tertiary aliphatic amine compound having an ether group and represented by general formula [2], and water, wherein the sum total of the mass concentrations of the amine compounds contained in the absorbent is 61 to 84%. General formula [1]: (wherein R1 represents an alkyl group having 1 to 5 carbon atoms or a hydrogen group; R2 and R3 independently represent an alkyl group having 1 or 2 carbon atoms or a hydrogen group; and n represents 2 or 3.) General formula [2]: (wherein R4 and R5 independently represent a tertiary alkyl amino group having 2 to 4 carbon atoms; and m represents 1, 2 or 3.)
Inventors:
YAMAMOTO SHIN (JP)
GOTO KAZUYA (JP)
CHOWDHURY FIROZ ALAM (JP)
MATSUZAKI YOICHI (JP)
ONODA MASAMI (JP)
GOTO KAZUYA (JP)
CHOWDHURY FIROZ ALAM (JP)
MATSUZAKI YOICHI (JP)
ONODA MASAMI (JP)
Application Number:
PCT/JP2019/006457
Publication Date:
August 29, 2019
Filing Date:
February 21, 2019
Export Citation:
Assignee:
RESEARCH INSTITUTE OF INNOVATIVE TECH FOR THE EARTH (JP)
NIPPON STEEL CORP (JP)
NIPPON STEEL CORP (JP)
International Classes:
B01D53/14; B01D53/62; B01D53/78; C01B32/50
Domestic Patent References:
| WO2013118819A1 | 2013-08-15 | |||
| WO2011071150A1 | 2011-06-16 |
Foreign References:
| JP2009006275A | 2009-01-15 | |||
| JP2014036933A | 2014-02-27 | |||
| JP2017189726A | 2017-10-19 |
Other References:
DU YANG ET AL.: "Thermal degradation of novel piperazine-based amine blends for C02 capture", INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, vol. 49, 2016, pages 239 - 249, XP029542024, doi:10.1016/j.ijggc.2016.03.010
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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