Patent ID: 8349039
Filing Date: 2013-01-08
Classification: C10J,C10L,Y02P

Abstract:
1. A particulate composition having a particle distribution size suitable for gasification in a fluidized bed zone, the particulate composition comprising an intimate mixture of: (a) a carbonaceous fines material having an average particle size of less than about 45 microns; (b) a particulate carbonaceous feedstock material having a particle distribution size suitable for gasification in a fluidized bed zone; and (c) a gasification catalyst which, in the presence of steam and under suitable temperature and pressure, exhibits gasification activity such that a plurality of gases comprising methane and one or more gases selected from the group consisting of hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, ammonia and other higher hydrocarbons are formed from the particulate composition, wherein: (1) the carbonaceous fines material and particulate carbonaceous feedstock are present in the particulate composition at a weight ratio of from about 1:99 to about 99:1; (2) the carbonaceous fines material is physically associated with the particulate carbonaceous feedstock; (3) the carbonaceous fines material and the particulate carbonaceous feedstock each comprise a gasification catalyst; (4) the gasification catalyst comprises a source of at least one alkali metal and is present in an amount sufficient to provide, in the particulate composition, a ratio of alkali metal atoms to carbon atoms ranging from 0.01 to about 0.08; and (5) the particulate composition has a particle size ranging from about 10 microns to about 2500 microns.