Invention Grant
- Patent Title: Wet-type exhaust desulfurizing apparatus
- Patent Title (中): 湿式排气脱硫装置
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Application No.: US12441648Application Date: 2007-09-19
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Publication No.: US08172931B2Publication Date: 2012-05-08
- Inventor: Takuro Ueda , Takanori Nakamoto , Atsushi Katagawa , Hajime Okura , Hiroshi Ishizaka
- Applicant: Takuro Ueda , Takanori Nakamoto , Atsushi Katagawa , Hajime Okura , Hiroshi Ishizaka
- Applicant Address: JP Tokyo
- Assignee: Babcock-Hitachi Kabushiki Kaisha
- Current Assignee: Babcock-Hitachi Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Greenblum & Bernstein P.L.C.
- Priority: JP2006-252153 20060919
- International Application: PCT/JP2007/068168 WO 20070919
- International Announcement: WO2008/035703 WO 20080327
- Main IPC: B01D47/06
- IPC: B01D47/06

Abstract:
An absorbing tower is provided in its side wall with a gas entrance for introducing a combustion exhaust gas into the absorbing tower, and an absorbing liquid is sprayed from the nozzles of a spray header into the exhaust gas introduced to rise from the gas entrance. A trough is arranged in the side wall of the absorbing tower and above the gas entrance, and a nose having a horseshoe shape in a top plan view and extending into tower is disposed in the tower side wall portion of the gas entrance other than the portion arranging the trough and at the same or at substantially the same height as the portion of the trough. The absorbing liquid, which is sprayed from the nozzle and drops along the absorbing tower wall portion, is rescattered to the center portion of the absorbing tower excepting the entrance of the absorbing tower, so that the gas-liquid contact efficiency is improved while suppressing an increase in pressure loss, thereby to prevent the drift of the gas at the tower wall portion.
Public/Granted literature
- US20090320687A1 WET-TYPE EXHAUST DESULFURIZING APPARATUS Public/Granted day:2009-12-31
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