Two stage entrained gasification system and process

Details Two stage entrained gasification system and process Two stage entrained gasification system and process

C - Chemistry, Metallurgy

10

J

C10J 3/00 (2006.01) C10J 1/207 (2012.01) C10J 3/84 (2006.01)

Patent

CA 2728604

The present invention relates to a system and process for gasifying feedstock such as carbonaceous materials. The invention includes partial combustion of dry solids and pyrolysis of carbonaceous material slurry in two separate reactor sections and produce mixture products comprising synthesis gas. The invention employs one or more catalytic or sorbent bed for removing tar from the synthesis gas. The inventive system and process allow a gasification to be carried out under higher slurry feeding rate and lower temperature with the provision to manage the tar being produced, therefore to increase the conversion efficiency of the overall gasification.

La présente invention concerne un système et un processus destinés à gazéifier une charge, par exemple des matériaux carbonés. Linvention comprend la combustion partielle de solides secs et la pyrolyse dune bouillie de matériaux carbonés dans deux sections séparées du réacteur en vue de produire un mélange de produits comprenant un gaz de synthèse. Linvention fait appel à un ou plusieurs lits de catalyseur ou de sorbant afin déliminer le goudron du gaz de synthèse. Le système et le processus selon linvention permettent de réaliser une gazéification à un débit supérieur dalimentation en bouillie et à une température plus basse avec la possibilité de gérer la production de goudron, et par conséquent daccroître le rendement de conversion de la gazéification dans son ensemble.

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