Title:
METHOD AND APPARATUS FOR RECOVERING CARBON DIOXIDE IN GAS TO BE TREATED
Document Type and Number:
Japanese Patent JP2014205102
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method and an apparatus capable of recovering carbon dioxide in a gas to be treated with high efficiency.SOLUTION: Carbon dioxide in a gas to be treated is recovered by a method comprising: a step (I) of obtaining a COrich absorption liquid by absorbing carbon dioxide in a COlean absorption liquid due to the contacting of the gas to be treated containing carbon dioxide to the COlean absorption liquid containing amines; a step (II) of reproducing the COrich absorption liquid obtained in the step (I) to the COlean absorption liquid by releasing carbon dioxide due to heating with steam of the COlean absorption liquid; a step (III) of obtaining steam by the flash evaporation of a part of the COlean absorption liquid reproduced in the step (II); and a step (IV) of supplying the steam of the COlean absorption liquid after increasing pressure while controlling to a proper temperature.
Inventors:
KOBAYASHI KAZUKI
YOKOYAMA KOICHI
MIYAMOTO EIJI
TAKAMOTO NARUHITO
SHIMAMURA JUN
YOKOYAMA KOICHI
MIYAMOTO EIJI
TAKAMOTO NARUHITO
SHIMAMURA JUN
Application Number:
JP2013083401A
Publication Date:
October 30, 2014
Filing Date:
April 11, 2013
Export Citation:
Assignee:
BABCOCK HITACHI KK
International Classes:
B01D53/14; B01D53/34; B01D53/62
Attorney, Agent or Firm:
Tadayuki Kikuma