Title:
【発明の名称】流動層ガス化炉における未燃炭素、塩の回収処理方法
Document Type and Number:
Japanese Patent JP2881421
Kind Code:
B1
Abstract:
PROBLEM TO BE SOLVED: To prevent unburnt carbon and a chloride from being stored at a fluidized bed, in a fluidized bed gasifying furnace. SOLUTION: A solid combustible substance is supplied in a fluidized bed gasifying furnace 40 for gasification. Unburnt gas containing unburnt ash is introduced in a cyclone 50 from a free board 48, unburnt ash is collected from unburnt gas, and collected unburnt ash is burnt by a recombustion furnace 58. In a method described above, by increasing an injection speed of gas through the gas dispersion nozzle of the fluidized bed gasifying furnace 40, pulverization of a flow medium containing unburnt carbon and a chloride is promoted. Unburnt ash containing pulverized unburnt carbon and a chloride is introduced to a cyclone 50 togetherwith unburnt gas, unburnt ash containing collected unburnt carbon and chloride is introduced to a desalting device 54 to remove the chloride, and unburnt ash containing unburnt carbon is re-burnt by a recombustion furnace 58.
Inventors:
Yoshitsugu Okada
Kazuo Tsutsumi
Kazuo Tsutsumi
Application Number:
JP10568598A
Publication Date:
April 12, 1999
Filing Date:
March 31, 1998
Export Citation:
Assignee:
Kawasaki Heavy Industries, Ltd.
International Classes:
F23G5/00; F23G5/027; F23G5/14; F23G5/30; F27B15/10; B09B3/00; (IPC1-7): F23G5/027; F23G5/00; F23G5/14; F23G5/30
Domestic Patent References:
| JP602819A | ||||
| JP61105018A | ||||
| JP852324A | ||||
| JP5997338U |
Attorney, Agent or Firm:
Shinichi Shiode (1 person outside)