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Title:
CARBON DIOXIDE RECOVERY-TYPE POWER GENERATING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/111116
Kind Code:
A1
Abstract:
Disclosed is a carbon dioxide recovery-type power generating system that comprises a boiler that burns coal; a NOx removal device disposed downstream of the boiler, that removes nitrogen oxide in boiler combustion exhaust gas; a heat exchanger disposed downstream of the NOx removal device, that recovers combustion gas heat; a precipitator disposed downstream of the heat exchanger, that removes smoke dust in the combustion exhaust gas; desulfurization equipment disposed downstream of the precipitator, that removes sulfur oxides in combustion exhaust gas; and a regenerative-type carbon dioxide recovery and desorption device disposed downstream of the desulfurization equipment, that holds a carbon dioxide absorbent. A regenerative-type carbon-dioxide absorption and desorption device removes absorbed carbon dioxide by ventilating combustion exhaust gas, and a portion of air heated at the heat exchanger as desorbed gas, absorbing carbon dioxide in the combustion exhaust gas, and ventilating the desorbed gas, at a portion that ventilates the combustion gas.

Inventors:
ORITA, Hisayuki (HITACHI LTD., 2-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 21, 〒3191221, JP)
折田久幸 (〒21 茨城県日立市大みか町七丁目2番1号 株式会社日立製作所 エネルギー・環境システム研究所内 Ibaraki, 〒3191221, JP)
MUKAIDE, Masaaki (HITACHI LTD., 2-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 21, 〒3191221, JP)
向出正明 (〒21 茨城県日立市大みか町七丁目2番1号 株式会社日立製作所 エネルギー・環境システム研究所内 Ibaraki, 〒3191221, JP)
HOKARI, Nobuyuki (HITACHI LTD., 2-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 21, 〒3191221, JP)
Application Number:
JP2010/001782
Publication Date:
September 15, 2011
Filing Date:
March 12, 2010
Export Citation:
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Assignee:
HITACHI, LTD. (6-6 Marunouchi 1-chome, Chiyoda-ku Tokyo, 80, 〒1008280, JP)
株式会社日立製作所 (〒80 東京都千代田区丸の内一丁目6番6号 Tokyo, 〒1008280, JP)
ORITA, Hisayuki (HITACHI LTD., 2-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 21, 〒3191221, JP)
折田久幸 (〒21 茨城県日立市大みか町七丁目2番1号 株式会社日立製作所 エネルギー・環境システム研究所内 Ibaraki, 〒3191221, JP)
MUKAIDE, Masaaki (HITACHI LTD., 2-1, Omika-cho 7-chome, Hitachi-sh, Ibaraki 21, 〒3191221, JP)
向出正明 (〒21 茨城県日立市大みか町七丁目2番1号 株式会社日立製作所 エネルギー・環境システム研究所内 Ibaraki, 〒3191221, JP)
International Classes:
B01D53/62; B01D53/02; B01D53/06; F23J15/00
Attorney, Agent or Firm:
Polaire I.P.C. (7-1Hatchobori 2-chome, Chuo-ku Tokyo, 32, 〒1040032, JP)
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Claims: