Gas: heating and illuminating – Processes – Coal and water
Patent
1984-02-13
1984-11-20
Bashore, S. Leon
Gas: heating and illuminating
Processes
Coal and water
48197R, 48214A, 48215, 252373, C10J 316, C10K 302, C01B 340
Patent
active
044836910
ABSTRACT:
In coal gasification processes for the production of synthetic natural gas by the reaction of coal with steam and oxygen under pressure to form a gasifier synthesis gas and a liquid hydrocarbon by-product, the liquid hydrocarbon by-product is treated for solids and metal removal and is then passed to a catalytic partial oxidation zone containing a monolithic platinum-palladium catalyst. The hydrocarbon by-product liquids are converted to secondary synthesis gas by being reacted with steam and oxygen. Optionally, the effluent from the catalytic partial oxidation zone may be passed through a second, steam reforming catalyst to react residual hydrocarbons with water to produce hydrogen and carbon oxides. The gasifier and secondary synthesis gases may be treated to remove acid gases therefrom and then methanated to provide a product synthetic natural gas.
REFERENCES:
patent: 3948762 (1976-04-01), Hayes
patent: 3964882 (1976-06-01), Staudinger
patent: 4134860 (1979-01-01), Hindin et al.
patent: 4199327 (1980-04-01), Hempill et al.
patent: 4297245 (1981-10-01), Bartley et al.
McShea, III William T.
Yarrington Robert M.
Bashore S. Leon
Engelhard Corporation
Hastings K. M.
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