Process for converting solid wastes to gases for use as a town g

Details Process for converting solid wastes to gases for use as a town g Process for converting solid wastes to gases for use as a town g

1982-03-09

1984-03-13

Lindsay, Jr., Robert L.

Gas: heating and illuminating

Processes

Wood

48197R, 48214A, 518703, C10J 300

Patent

active

044365322

ABSTRACT:
A process for converting solid wastes to gases suitable for use as a town gas comprising the steps of (1) pyrolyzing solid wastes at 550.degree. C. or higher in a pyrolyzing furnace to produce pyrolysis gases containing hydrogen, carbon monoxide and dioxide, methane and other hydrocarbons as well as chlorine-containing compounds, sulphur-containing compounds and other impurities, (2) washing the pyrolysis gases with an aqueous alkaline solution or the like, (3) refining the washed pyrolysis gases with the hydrogen contained in the pyrolysis gases, (4) reforming the refined pyrolysis gases by steam reforming, CO conversion and/or methanation and (5) separating the excess steam and carbonic acid gas from the reformed gases. In one embodiment, the washing (2) and refining (3) may be substituted by the high-temperature steam reforming of the pyrolysis gases in hot state supplied directly from the pyrolyzing furnace.

REFERENCES:
patent: 2963348 (1960-12-01), Sellers
patent: 2987387 (1961-06-01), Carkeek et al.
patent: 3759677 (1973-09-01), White
patent: 3853498 (1974-12-01), Baillie
patent: 3890113 (1975-06-01), Child et al.
patent: 4064156 (1977-12-01), McRobbie
patent: 4082520 (1978-04-01), Baron et al.
patent: 4300915 (1981-11-01), Schmidt et al.

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