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1. EP2578290 - CO2 recovery system and method

Office
European Patent Office
Application Number 12199653
Application Date 14.03.2005
Publication Number 2578290
Publication Date 10.04.2013
Publication Kind B1
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 53/18
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
18Absorbing units; Liquid distributors therefor
B01D 53/34
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
B01D 53/78
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
74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
77Liquid phase processes
78with gas-liquid contact
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 IND LTD
KANSAI ELECTRIC POWER CO
Inventors IIJIMA MASAKI
KAMIJO TAKASHI
YONEKAWA TAKAHITO
MIMURA TOMIO
YAGI YASUYUKI
Designated States
Title
(DE) CO2-Rückgewinnungssystem und -verfahren
(EN) CO2 recovery system and method
(FR) Système et procédé de récupération de CO2
Abstract
(EN) A CO 2 recovery system according to the present invention includes an absorption tower(13) that contacts CO 2 -containing gas(11) containing CO 2 with a CO 2 -absorbing solution(12) absorbing CO 2 to remove CO 2 ; and a regeneration tower(15) that regenerates a rich solution(14) having absorbed CO 2 , and reuses a lean solution(16), obtained by removing CO 2 from the rich solution in the regeneration tower(15), in the absorption tower(13). The CO 2 recovery system also includes a regeneration heater(18) that extracts the lean solution(16) recovered near a bottom portion of the regeneration tower(15) to the outside, and heat-exchanges the lean solution(16) with high-temperature steam(17); and a steam-condensate heat exchanger(21) that is provided in a rich-solution supply pipe(20) for supplying the rich solution(14) from the absorption tower(13) to the regeneration tower(15) and heats the rich solution(14) with the residual heat of steam condensate(19) fed from the regeneration heater(18).
(FR) Appareil pour récupérer du CO2 ayant une tour d'absorption (13) pour mettre en contact un gaz contenant du CO2 (11) contenant du CO2 avec un fluide absorbant le CO2 (12) absorbant le CO2 pour enlever le CO2 et une tour de régénération (15) pour régénérer une solution riche (14) ayant du CO2 absorbé et réutiliser, dans la tour d'absorption (13), une solution pauvre (16) ayant été appauvrie en CO2 dans ladite tour de régénération (15), lequel comprend un réchauffeur de régénération (18) pour soutirer une solution pauvre (16) récupérée aux environs du fond de la tour de régénération (15) vers l'extérieur de celle-ci et soumettre la solution pauvre à un échange de chaleur avec une vapeur à haute température (17) et un échangeur de chaleur à l'eau condensée de la vapeur (21) étant disposé dans la ligne d'alimentation en solution riche (20) introduisant une solution riche (14) dans la tour de régénération (15) à partir de la tour d'absorption (13) pour chauffer ladite solution riche (14) grâce à l'utilisation de la chaleur résiduelle de l'eau condensée de la vapeur (19) provenant du réchauffeur de régénération (18) ci-dessus.
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