EP 0310584 A2 19890405 - Refining of raw gas.
Title (en)
Refining of raw gas.
Title (de)
Reinigung von Rohgas.
Title (fr)
Epuration de gaz brut.
Publication
Application
Priority
SE 8703816 A 19871002
Abstract (en)
The invention relates to a process for the refining of a raw gas produced from a carbonaceous material by means of a gasification process, refining taking place in a secondary stage separated from the gasifier. In order to reduce the gas contents of tar in the form of organic compounds condensible at lower temperatures, such as ambient temperatures, and of ammonia, the refining is carried out in a secondary stage being a fast circulating fluidized bed, the bed material of which at least mainly being an active material in the form of a material that is catalytic for tar and ammonia conversion, whereby a catalytic conversion of tar and ammonia contained in the raw gas is obtained. In order to decrease the content of hydrogen chloride in the gas, an active material that also can absorb chloride is used. Fresh catalytic and absorbing material is supplied in an amount sufficient to have the hydrogen chloride present in the raw gas absorbed on the material, a corresponding amount of the material containing absorbed chloride being discharged from the secondary stage.
IPC 1-7
IPC 8 full level
C10J 3/84 (2006.01); C10K 1/00 (2006.01); C10K 1/20 (2006.01); C10K 1/34 (2006.01)
CPC (source: EP)
C10J 3/84 (2013.01); C10K 1/20 (2013.01); C10K 3/023 (2013.01); C10J 2300/0983 (2013.01); C10J 2300/0986 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0310584 A2 19890405; EP 0310584 A3 19900314; EP 0310584 B1 19930414; AT E88210 T1 19930415; AU 2529788 A 19890418; AU 612199 B2 19910704; CA 1335694 C 19950530; DE 3880253 D1 19930519; DE 3880253 T2 19930729; DK 175009 B1 20040419; DK 81090 A 19900528; DK 81090 D0 19900330; ES 2039698 T3 19931001; FI 901613 A0 19900330; FI 95924 B 19951229; FI 95924 C 19960410; GE P19980893 B 19980410; JP 2573681 B2 19970122; JP H03500420 A 19910131; LT 3842 B 19960425; LT IP1598 A 19950825; LV 11188 A 19960420; LV 11188 B 19961020; NO 302422 B1 19980302; NO 901393 D0 19900327; NO 901393 L 19900327; SE 459584 B 19890717; SE 8703816 D0 19871002; SE 8703816 L 19890403; WO 8902909 A1 19890406
DOCDB simple family (application)
EP 88850323 A 19880928; AT 88850323 T 19880928; AU 2529788 A 19880928; CA 579047 A 19880930; DE 3880253 T 19880928; DK 81090 A 19900330; ES 88850323 T 19880928; FI 901613 A 19900330; GE AP1988001491 A 19880928; JP 50805688 A 19880928; LT IP1598 A 19931215; LV 931170 A 19931025; NO 901393 A 19900327; SE 8703816 A 19871002; SE 8800502 W 19880928