Waste stone oxidation and recarbonization

Details Waste stone oxidation and recarbonization Waste stone oxidation and recarbonization

1975-02-21

1976-06-29

Bashore, S. Leon

Gas: heating and illuminating

Processes

Fuel mixtures

48212, 48213, 48215, 110 1J, 122 4D, 423232, 423244, 423431, 423555, C10J 100, C10K 134

Patent

active

039664317

ABSTRACT:
The disclosed process provides for the production of a desulfurized fuel gas from a sulfur-containing fuel oil by absorption, in a first reaction zone, of the sulfur contaminants with a calcium oxide-containing material, which material is then further treated to render it environmentally stable without producing a sulfur-rich gas process stream. The spent limestone from the oil gasifier is reacted with an oxygen-containing gas in a second reaction zone for conversion of the calcium sulfide to calcium sulfate and the sulfated material is then transferred to a third reaction zone wherein it is reacted with carbon dioxide for conversion of the calcium oxide to calcium carbonate.

REFERENCES:
patent: 3540387 (1970-11-01), McLaren et al.
patent: 3661800 (1972-05-01), Pfeiffer et al.
patent: 3783528 (1974-01-01), Sheely
patent: 3807090 (1974-04-01), Moss

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