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1. CA2689784 - CO2 RECOVERY SYSTEM AND METHOD

Office
Canada
Application Number 2689784
Application Date
Publication Number 2689784
Publication Date 20.10.2005
Grant Number
Grant Date 13.03.2012
Publication Kind C
IPC
B01D 53/14
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
14by absorption
B01D 53/62
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
46Removing components of defined structure
62Carbon oxides
B01D 53/96
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
96Regeneration, reactivation or recycling of reactants
CPC
B01D 53/1425
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
14by absorption
1425Regeneration of liquid absorbents
B01D 53/1475
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
14by absorption
1456Removing acid components
1475Removing carbon dioxide
B01D 2258/0283
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2258Sources of waste gases
02Other waste gases
0283Flue gases
B01D 2259/65
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2259Type of treatment
65Employing advanced heat integration, e.g. Pinch technology
Y02C 20/40
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
CCAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
20Capture or disposal of greenhouse gases
40of CO2
B01D 53/14
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
14by absorption
Applicants MITSUBISHI HEAVY INDUSTRIES, LTD.
THE KANSAI ELECTRIC POWER CO., INC.
Inventors IIJIMA, MASAKI
KAMIJO, TAKASHI
YONEKAWA, TAKAHITO
MIMURA, TOMIO
YAGI, YASUYUKI
Priority Data 2004073388 15.03.2004 JP
Title
(EN) CO2 RECOVERY SYSTEM AND METHOD
(FR) INSTALLATION ET METHODE DE RECUPERATION DU DIOXYDE DE CARBONE
Abstract
(EN) The present invention relates to a CO2 recover system which has improved energy efficiency in comparison with other systems. An absorption tower receives CO2-containing gas and CO2-absorbing solution and produces a CO2 rich solution. A regeneration tower receives the CO2 rich solution and produces lean solution from the rich solution. Lean-solution is extracted from the bottom of the regeneration tower and sent to the absorption tower. A heat exchanger is provided to heat semi-lean solution in the middle portion of the regeneration tower with heat from the lean solution to provide energy by using the residual heat of steam condensate.
(FR) La présente invention porte sur un appareil de récupération du CO2 possédant une plus grande efficacité énergétique que d'autres appareils similaires. Une tour d'absorption reçoit des gaz contenant du CO2, ainsi qu'une solution absorbant le CO2, puis produit une solution riche en CO2. Une tour de régénération reçoit la solution riche en CO2 et produit une solution appauvrie à partir de la solution riche. La solution appauvrie est extraite du fond de la tour de régénération et envoyée à la tour d'absorption. Un échangeur de chaleur est installé pour chauffer la solution semi-appauvrie dans la partie intermédiaire de la tour de régénération, la chaleur provenant de la solution appauvrie servant à produire de l'énergie par récupération de la chaleur résiduelle du condensat de vapeur.
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