Patent ID: 8297542
Filing Date: 2012-10-30
Classification: B01J,C10J,C10L,Y02P

Abstract:
1. A process for preparing a particulate composition, the process comprising the steps of: (a) providing a first coal feedstock, a second coal feedstock, and a third coal feedstock, each in particulate form; (b) contacting the first coal feedstock with a first aqueous solution comprising a transition metal gasification catalyst to form a first slurry; (c) contacting the second coal feedstock with a second aqueous solution comprising alkaline earth metal source to form a second slurry; (d) contacting the third coal feedstock with a third aqueous solution comprising an alkali metal gasification catalyst to form a third slurry; and (e) dewatering the first slurry, the second slurry, and the third slurry to form a first wet cake, a second wet cake, and a third wet cake, respectively; wherein the process comprises the further steps of (1) or (2): (1) (f1) thermally treating the first wet cake, the second wet cake, and the third wet cake with a dry inert gas to provide a first particulate, a second particulate, and a third particulate, each having a residual moisture content of less than about 4 wt %; and (g1) blending at least a portion of the first particulate, at least a portion of the second particulate, and at least a portion of the third particulate to form a particulate composition; or (2) (f2) combining at least a portion of the first wet cake, at least a portion of the second wet cake, and at least a portion of the third wet cake to form a final wet cake; (g2) thermally treating the final wet cake with a dry inert gas to provide a particulate composition having a residual moisture content of less than about 4 wt %.