Process for producing smokeless, cured fuel briquettes

Details Process for producing smokeless, cured fuel briquettes Process for producing smokeless, cured fuel briquettes

1988-01-28

1989-04-25

Dees, Carl F.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44593, 44598, C10L 520, C10L 506

Patent

active

048244384

ABSTRACT:
Green briquettes made from particulate carbonaceous material and lignosulfonate as a binder are cured in an oven in the presence of circulating gases containing a high percentage of oxygen and superheated steam. The sulfur derived from the binder is oxidized and then hydrolyzed (exothermic reactions) at the curing temperature with formation of sulfuric acid, which is dissociated (endothermic reaction) in the case of a temperature rise. The reactions provide a means for thermal balance within the curing oven.

REFERENCES:
patent: 1596239 (1926-08-01), Delzeit
patent: 3684465 (1972-08-01), Hsu
patent: 4238200 (1980-12-01), Richter
patent: 4294584 (1981-10-01), Verschuur
patent: 4618347 (1986-10-01), Watt et al.
British Standards 3841 British Standards Institute 1016, Part 13.

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