Manufacture of combustible gases

Details Manufacture of combustible gases Manufacture of combustible gases

1975-06-09

1976-07-13

Lindsay, Jr., Robert L.

Gas: heating and illuminating

Processes

Fuel mixtures

48203, 48212, 423244, C10J 354, C01B 214

Patent

active

039690890

ABSTRACT:
Substantially sulfur-free combustible fuel gas under superatmospheric pressure is produced by partial combustion or gasification under superatmospheric pressure of a sulfur-containing solid, liquid or gaseous fuel. The gasification is effected within a fluidized bed of particles containing alkaline earth metal compounds (e.g. the oxides) which are capable of reacting with, and of fixing, the fuel sulfur as sulfides under reducing conditions. Sulfide-containing particles are exposed to an oxidizing atmosphere and the sulfides are thereby converted to oxides with the liberation of SO.sub.2 in useful concentrations, and with the liberation of heat. Particles containing regenerated oxides are re-used for fixing more sulfur during fuel gasification. Expedients are described by which it is ensured that the sulfur-fixing activity of the particles is substantially maintained and that the temperatures of the particles during sulfur-fixing and regeneration are maintained within predetermined ranges. The pressurized sulfur-free fuel gas may be directly used to power a gas turbine.

REFERENCES:
patent: 3481834 (1969-12-01), Squires
patent: 3597327 (1971-08-01), Squires
patent: 3784676 (1974-01-01), Moss
patent: 3807090 (1974-04-01), Moss
patent: 3870480 (1975-03-01), Moss

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