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Title:
EXHAUST GAS TREATMENT SYSTEM PROVIDED WITH CARBON DIOXIDE CHEMISORPTION EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2011/132659
Kind Code:
A1
Abstract:
Disclosed is an exhaust gas treatment system that, in CO2 chemisorption equipment requiring enormous heat energy, efficiently and without any restrictions uses—in the CO2 chemisorption equipment—heat recovered from the exhaust gas, and that can reduce the operating cost of the CO2 chemisorption equipment. The exhaust gas treatment system—which is provided with: a heat recovery unit that recovers exhaust heat from exhaust gas discharged from a boiler; and CO2 chemisorption equipment that absorbs CO2 in the exhaust gas by causing the exhaust gas to contact an amine sorbent liquid in a carbon dioxide (CO2) absorption tower, heats the sorbent liquid that has absorbed said CO2, causing the release of CO2 within a CO2 regeneration tower, and after heating the post-CO2-release sorbent liquid via a re-boiler, circulates the sorbent liquid to the CO2 absorption tower—has a heat exchange means that confers the heat recovered by the aforementioned heat recovery unit to the sorbent liquid sent to the re-boiler from the CO2 regeneration tower of the aforementioned CO2 chemisorption equipment.

Inventors:
KONISHI Tomoyuki (6-9 Takaramachi, Kure-sh, Hiroshima 29, 〒7370029, JP)
小西 智之 (〒29 広島県呉市宝町6番9号 バブコック日立株式会社 呉事業所内 Hiroshima, 〒7370029, JP)
NAKAMOTO Takanori (6-9 Takaramachi, Kure-sh, Hiroshima 29, 〒7370029, JP)
中本 隆則 (〒29 広島県呉市宝町6番9号 バブコック日立株式会社 呉事業所内 Hiroshima, 〒7370029, JP)
Application Number:
JP2011/059597
Publication Date:
October 27, 2011
Filing Date:
April 19, 2011
Export Citation:
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Assignee:
BABCOCK-HITACHI KABUSHIKI KAISHA (14-1, Sotokanda 4-chome Chiyoda-k, Tokyo 21, 〒1010021, JP)
バブコック日立株式会社 (〒21 東京都千代田区外神田4丁目14番1号 Tokyo, 〒1010021, JP)
KONISHI Tomoyuki (6-9 Takaramachi, Kure-sh, Hiroshima 29, 〒7370029, JP)
小西 智之 (〒29 広島県呉市宝町6番9号 バブコック日立株式会社 呉事業所内 Hiroshima, 〒7370029, JP)
NAKAMOTO Takanori (6-9 Takaramachi, Kure-sh, Hiroshima 29, 〒7370029, JP)
International Classes:
B01D53/62; B01D53/14; F23J15/00
Attorney, Agent or Firm:
KAWAKITA Takenaga (Taisei Building, 4-10 Nihonbashi-kayabacho 2-chome, Chuo-k, Tokyo 25, 〒1030025, JP)
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Claims: