Title:
吸収液、吸収液を用いたガス中のCO2又はH2S除去装置及び方法
Document Type and Number:
Japanese Patent JP5039276
Kind Code:
B2
Abstract:
To provide an absorbing liquid by which either one or both of CO2or/and H2S incorporated in a gas can be removed in a compact and energy-saving recovery unit and to provide an apparatus and a method for removing either one or both of CO2or/and H2S by using the absorbing liquid.
This absorbing liquid for absorbing either or both of CO2and H2S incorporated in the gas contains alkanolamine as a first component and a second component consisting of a nitrogen compound having two or all of a primary nitrogen atom, a secondary nitrogen atom and a tertiary nitrogen atom in the molecule. As a result, this absorbing liquid can exhibit excellent performance when the absorption capacity and heat of absorption of this absorbing liquid are compared with those of a single aqueous solution of the alkanolamine or nitrogen compound having the same concentration by weight as this absorbing liquid and can recover either or both of CO2and H2S incorporated in the gas with low energy.
COPYRIGHT: (C)2006,JPO&NCIPI
Inventors:
Taro Ichihara
Masazumi Taura
Noriko Wataru
Hideharu Fujii
Yukino Inoue
Mitsuru Sakano
Mimura Tomio
Yagi Yasuyuki
Application Number:
JP2004360528A
Publication Date:
October 03, 2012
Filing Date:
December 13, 2004
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
Kansai Electric Power Co., Inc.
International Classes:
B01D53/14; B01D53/34; B01D53/52; B01D53/62; B01D53/77
Domestic Patent References:
| JP2504367A | | | | |
| JP7246314A | | | | |
| JP2002126439A | | | | |
| JP2004504131A | | | | |
Attorney, Agent or Firm:
Hiroaki Sakai
