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Title:
CO2 SEPARATION AND RECOVERY EQUIPMENT, AND A COAL GASIFICATION COMBINED POWER PLANT COMPRISING CO2 SEPARATION AND RECOVERY EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2012/046542
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing CO2 separation and recovery equipment that yields a higher CO2 recovery rate, and a coal gasification combined power plant comprising the CO2 separation and recovery equipment with high plant efficiency. The CO2 separation and recovery equipment according to the present invention, having a CO shift reactor into which a gas containing main components of CO and H2O is introduced and converted into CO2 and H2, comprises: an inlet valve that is provided on the inlet side of the CO shift reactor; an outlet valve that is provided on the outlet side of the CO shift reactor; a steam relief valve for applying high temperature steam to a foregoing part of the inlet valve; and a gas composition analyzer that senses a gas composition of a stream flowing into the CO shift reactor. The steam relief valve is controlled by the difference in the molar amount of CO and H2O that is calculated from the analysis results of the gas composition analyzer, and the inlet valve and the outlet valve of the CO shift reactor are controlled on the basis of the catalyst tank temperature of the CO shift reactor.

Inventors:
TAKEUCHI HIROTO (JP)
Application Number:
PCT/JP2011/070749
Publication Date:
April 12, 2012
Filing Date:
September 12, 2011
Export Citation:
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Assignee:
HITACHI LTD (JP)
TAKEUCHI HIROTO (JP)
International Classes:
C01B32/40; C01B3/14; C01B3/16; C01B32/50; C10K3/04; F01K23/10; F02C6/00
Foreign References:
JP2010184994A2010-08-26
JPH0559964A1993-03-09
JP2004161502A2004-06-10
JPH07316568A1995-12-05
JP2003106514A2003-04-09
JP2010144720A2010-07-01
JP2010138042A2010-06-24
JP2007246372A2007-09-27
JP2000178567A2000-06-27
JP2010144720A2010-07-01
JP2009221098A2009-10-01
Other References:
See also references of EP 2634141A4
Attorney, Agent or Firm:
POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)
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Claims: