JP2011062700 CO2 RECOVERY APPARATUS AND METHOD

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Application Number 2011000271

Application Date 04.01.2011

Publication Number 2011062700

Publication Date 31.03.2011

Grant Number 5174194

Grant Date 11.01.2013

Publication Kind B2

IPC

CPC

Applicants MITSUBISHI HEAVY IND LTD
三菱重工業株式会社
KANSAI ELECTRIC POWER CO INC:THE
関西電力株式会社

Inventors KAMIJO TAKASHI
上條　孝
IIJIMA MASAKI
飯嶋　正樹
YONEKAWA TAKAHITO
米川　隆仁
MIMURA TOMIO
三村　富雄
YAGI YASUYUKI
八木　靖幸

Agents 酒井　宏明

Title

(EN) CO2 RECOVERY APPARATUS AND METHOD

(JA) ＣＯ２回収装置及び方法

Abstract

(EN)

PROBLEM TO BE SOLVED: To provide a CO2 recovery apparatus and a method with further increased energy efficiency.

SOLUTION: This CO2 recovery apparatus includes an absorbing tower 13 removing CO2 by bringing CO2-containing gas 11 into contact with CO2 absorbing liquid 12 and a regenerating tower 15 regenerating a rich solution 14 having absorbed CO2, and reuses a lean solution 16 from which CO2 has been removed in the regeneration tower 15, in the absorbing tower 13. The apparatus is also provided with a regenerating heater 18 at the vicinity of the bottom of the regenerating tower 15 for drawing out the recovered lean solution 16 to the outside and heat-exchanging with high temperature steam 17; and a steam condensate heat exchanger 21 provided in a rich solution supply pipe 20 supplying the rich solution 14 from the absorbing tower 13 to the regenerating tower 15, and heating the rich solution 14 with remaining heat of steam condensate 19 from the regenerating heater 18.

(JA)

【課題】エネルギー効率を一層向上させたＣＯ₂回収装置及び方法を提供する。
【解決手段】ＣＯ₂を含有するＣＯ₂含有ガス１１とＣＯ₂を吸収するＣＯ₂吸収液１２とを接触させてＣＯ₂を除去する吸収塔１３と、ＣＯ₂を吸収したリッチ溶液１４を再生する再生塔１５と、該再生塔１５でＣＯ₂を除去したリーン溶液１６を吸収塔１３で再利用するＣＯ₂回収装置であって、再生塔１５の塔底部近傍に回収されたリーン溶液１６を外部へ抜き出して高温スチーム１７により熱交換する再生加熱器１８と、吸収塔１３から再生塔１５にリッチ溶液１４を供給するリッチ溶液供給管２０に設けられ、前記再生加熱器１８からのスチーム凝縮水１９の余熱により該リッチ溶液１４を加熱するスチーム凝縮水熱交換器２１とを具備してなる。
【選択図】図１

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D	SEPARATION
53	Separation 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
34	Chemical or biological purification of waste gases
46	Removing components of defined structure
62	Carbon oxides

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D	SEPARATION
53	Separation 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
14	by absorption
18	Absorbing units; Liquid distributors therefor

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D	SEPARATION
53	Separation 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
34	Chemical or biological purification of waste gases
46	Removing components of defined structure
62	Carbon oxides

B	PERFORMING OPERATIONS; TRANSPORTING
01	PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D	SEPARATION
53	Separation 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
14	by absorption
18	Absorbing units; Liquid distributors therefor

Y	SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02	TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
A	TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
50	in human health protection, e.g. against extreme weather
20	Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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1. JP2011062700 - CO2 RECOVERY APPARATUS AND METHOD

Y	SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02	TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
C	CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
20	Capture or disposal of greenhouse gases
40	of CO₂