Thermally insulated quench ring for a gasifier

Details Thermally insulated quench ring for a gasifier Thermally insulated quench ring for a gasifier

C - Chemistry, Metallurgy

10

J

48/19

C10J 3/48 (2006.01)

Patent

CA 1329002

THERMALLY INSULATED QUENCH RING FOR A GASIFIER (D#78, 760-F) ABSTRACT Reactor for gasifying a carbonaceous fuel to produce a usable gas, and comprising an insulated outer shell. A reac- tion chamber within the shell receives a fuel mixture from an injection burner. The products or effluent of gasification include hot produced gases which are passed through a con- stricted throat to be cooled in a liquid bath. A dip tube, which guides the hot effluent into the bath, is provided with a stream of coolant from a quench ring. The latter is supported below the reaction chamber and is provided with a thermal bar- rier along its surface that is exposed to the hot produced gas. The barrier will reduce thermal stress in the quench ring and reduce drain of heat from the gasifier throat, thus avoiding premature chilling of the slag component.

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