Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FLUE GAS DESULFURIZATION DEVICE, COMBUSTION SYSTEM AND COMBUSTION METHOD
Document Type and Number:
WIPO Patent Application WO/2011/145160
Kind Code:
A1
Abstract:
Disclosed is a desulfurization device that releases exhaust gas from the desulfurization device into the atmosphere without reduction in CO2 recovery rate and without mercury components, and a combustion system that uses said desulfurization device. Because the absorbent (6) of the desulfurization device is drawn from an absorbent reservoir (11) by a circulating pump (5) and sprayed through spray nozzles (4) into a desulfurization-absorption unit (26) and, in the absorbent reservoir (11), is mainly circulated outside the wall of a water seal tube (7) by a stirrer (10), the flow of the absorbent (6) that falls from the desulfurization-absorption unit (26) into the water seal tube (7) flows in a single direction from top to bottom and hinders the ascension of gas bubbles. Intermixing of the gas (27) for oxidizing the sulfur dioxide, which is generated in the absorbent, with the desulfurization device exhaust gas (2) is thereby prevented, efficient CO2 recovery is possible without reduction in the CO2 concentration recovered from the exhaust gas after desulfurization by the CO2 recovery device (17) and mercury in the combustion exhaust gas is absorbed in the absorbent of the desulfurization device (3) and is not released directly into the atmosphere.

Inventors:
MITSUI, Yoshiaki (5-3 Takara-machi, Kure-sh, Hiroshima 08, 〒7378508, JP)
三井良晃 (〒08 広島県呉市宝町5番3号 バブコック日立株式会社 呉研究所内 Hiroshima, 〒7378508, JP)
KIKKAWA, Hirofumi (5-3 Takara-machi, Kure-sh, Hiroshima 08, 〒7378508, JP)
吉川博文 (〒08 広島県呉市宝町5番3号 バブコック日立株式会社 呉研究所内 Hiroshima, 〒7378508, JP)
IMADA, Noriyuki (5-3 Takara-machi, Kure-sh, Hiroshima 08, 〒7378508, JP)
今田典幸 (〒08 広島県呉市宝町5番3号 バブコック日立株式会社 呉研究所内 Hiroshima, 〒7378508, JP)
Application Number:
JP2010/007554
Publication Date:
November 24, 2011
Filing Date:
December 27, 2010
Export Citation:
Click for automatic bibliography generation   Help
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四丁目14番1号 Tokyo, 〒1010021, JP)
MITSUI, Yoshiaki (5-3 Takara-machi, Kure-sh, Hiroshima 08, 〒7378508, JP)
三井良晃 (〒08 広島県呉市宝町5番3号 バブコック日立株式会社 呉研究所内 Hiroshima, 〒7378508, JP)
KIKKAWA, Hirofumi (5-3 Takara-machi, Kure-sh, Hiroshima 08, 〒7378508, JP)
吉川博文 (〒08 広島県呉市宝町5番3号 バブコック日立株式会社 呉研究所内 Hiroshima, 〒7378508, JP)
IMADA, Noriyuki (5-3 Takara-machi, Kure-sh, Hiroshima 08, 〒7378508, JP)
International Classes:
B01D53/50; B01D53/18; B01D53/64; B01D53/77; F23C9/08; F23J15/00; F23L7/00
Foreign References:
JP2001120948A2001-05-08
JPH08257347A1996-10-08
JPH11290646A1999-10-26
JPH09208277A1997-08-12
JPH0641826U1994-06-03
JP2007147162A2007-06-14
JP2007147161A2007-06-14
JPH05187609A1993-07-27
JPH0571726A1993-03-23
Attorney, Agent or Firm:
MATSUNAGA, Takayoshi et al. (Seifun-kaikan bldg, 15-6 Nihonbashi-kabutocho, Chuo-k, Tokyo 26, 〒1030026, JP)
Download PDF:
Claims: