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Title: Method of distributing liquefaction catalysts in solid carbonaceous material

Patent ·
OSTI ID:6262516

A method of dispersing a liquefaction catalyst within coal or other carbonaceous solids involves providing a suspension in oil of microcapsules containing the catalyst. An aqueous solution of a catalytic metal salt is emulsified in the water-immiscible oil and the resulting minute droplets microencapsulated in polymeric shells by interfacial polycondensation. The catalyst is subsequently blended and dispersed throughout the powdered carbonaceous material to be liquefied. At liquefaction temperatures the polymeric microcapsules are destroyed and the catalyst converted to minute crystallites in intimate contact with the carbonaceous material. 2 tables.

DOE Contract Number:
FG22-81PC40781
Assignee:
Dept of Energy
Patent Number(s):
Patentsusa6612953
Application Number:
ON: TI85005759
OSTI ID:
6262516
Country of Publication:
United States
Language:
English