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Title:
SUPERCRITICAL WATER GASIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/083785
Kind Code:
A1
Abstract:
The present invention comprises: a gasification reactor 141 that subjects a slurry generated by adjusting biomass to a gasification process using supercritical water; a heat exchanger 130 that preheats the slurry before the slurry is subjected to the gasification process using supercritical water by the gasification reactor 141; a supercritical pressure boiler 140 that discharges steam at a pressure that is greater than or equal to the pressure in a supercritical water gasification system; a circulation flow path 150 that links the supercritical pressure boiler 140 and the heat exchanger 130 so as to allow circulation therebetween; and a circulation pump 161 for circulating the steam, said circulation pump being installed in the circulation flow path 150. The heat exchanger 130 preheats a slurry that includes water-containing biomass by circulating high-pressure steam of a pressure that is greater than or equal to the pressure in a supercritical water gasification system. Consequently, fuel consumption is kept to a minimum, the heat exchanger 130 can be made more compact, the generation of tar and char is suppressed so that clogging of tubes of the heat exchanger 130 can be avoided, and a fuel gas such as methane or hydrogen can be efficiently generated from the water-containing biomass.

Inventors:
WADA YASUTAKA (JP)
MATSUMURA YUKIHIKO (JP)
KAWAI YOSHIFUMI (JP)
NOGUCHI TAKASHI (JP)
Application Number:
PCT/JP2016/082878
Publication Date:
May 11, 2018
Filing Date:
November 04, 2016
Export Citation:
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Assignee:
CHUGOKU ELECTRIC POWER (JP)
UNIV HIROSHIMA (JP)
CHUDEN PLANT CO LTD (JP)
TOYO KOATSU CO LTD (JP)
International Classes:
C10J3/72; C10J3/78
Domestic Patent References:
WO2016135979A12016-09-01
Foreign References:
JP2009242697A2009-10-22
JP2000273472A2000-10-03
Attorney, Agent or Firm:
ISSHIKI & CO. (JP)
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