Patent ID: 6015104
Filing Date: 2000-01-18
Classification: B03B,C10J

Abstract:
A process for preparing feedstock for a coal gasification plant, comprising the steps of:admitting a raw feedstock slurry containing carbonaceous and inert particles to a hydrocyclone and therein separating a substantial fraction of the carbonaceous particles in the hydrocyclone to yield a primary carbonaceous-rich overflow;further separating said primary carbonaceous-rich overflow to produce a secondary carbonaceous-rich overflow and a media bleed slurry;crushing said secondary carbonaceous-rich overflow;adding at least a portion of said media bleed slurry to said crushed secondary carbonaceous-rich overflow;milling said crushed secondary carbonaceous-rich overflow and media bleed slurry portion; andconditioning said crushed and milled carbonaceous rich material to provide a finished feedstock slurry having a predetermined solids to liquid ratio suitable for feeding to a gasifier.