Title:
METHOD FOR RECOVERING CARBON DIOXIDE IN EXHAUST GAS BY ABSORPTION AND RELEASING
Document Type and Number:
Japanese Patent JP2006240966
Kind Code:
A
Abstract:
To provide a method for efficiently and with low energy consumption recovering high purity CO2 by absorbing CO2 in a gas and releasing it.
The method for recovering carbon dioxide comprises bringing a gas containing carbon dioxide into contact with an aqueous solution containing alkanolamines represented by the general formula [I] (in the formula, R1 and R2 are each an alkyl group, R3 is hydrogen or an alkyl group) and piperazines represented by general formula [II] (in the formula, R4-R9 are each an alkyl group, an alkyl group substituted with an amino group or an alkyl group substituted with a hydroxy group), to allow the aqueous solution to absorb the carbon dioxide in the aqueous solution and recovering the carbon dioxide.
Inventors:
SHIMIZU SHINKICHI
MARUYAMA TADASHI
ONODA MASAMI
YAGI YASUYUKI
MIMURA TOMIO
MARUYAMA TADASHI
ONODA MASAMI
YAGI YASUYUKI
MIMURA TOMIO
Application Number:
JP2005062678A
Publication Date:
September 14, 2006
Filing Date:
March 07, 2005
Export Citation:
Assignee:
RES INST INNOVATIVE TECH EARTH
International Classes:
C01B32/50; B01D53/14; B01D53/62
Domestic Patent References:
| JP2001025627A | 2001-01-30 | |||
| JPH08257355A | 1996-10-08 | |||
| JP2871335B2 | 1999-03-17 | |||
| JP2004237167A | 2004-08-26 |
Attorney, Agent or Firm:
Eiji Saegusa
Kakehi Yuro
Masahito Hayashi
Kakehi Yuro
Masahito Hayashi