Fuel briquettes

Details Fuel briquettes Fuel briquettes

1988-12-20

1989-09-05

Caldarola, Glenn

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 24, 44 25, C10L 500

Patent

active

048634859

ABSTRACT:
The process is disclosed for the manufacture of briquettes in which an essentially solid fuel material such as hard coal, coke, soft coal, charcoal or more particularly, anthracite, and other coals of low volatility are mixed in the presence of polyvinyl alcohol and calcium oxide and/or magnesium oxide, as well as at least 1 percent by weight of water, and formed into briquettes. The calcium oxide is preferably caustic lime. The polyvinyl alcohol is preferably applied as an aqueous solution. The briquettes so formed are characterized by high initial crush resistance, i.e. the solidity shortly after the briquetting process, by high abrasion resistance, easy handling and, in the event that anthracite is employed, a carbon tar index of less than 50. The waste gases emitted during the burning of these briquettes have a distinctly reduced SO.sub.2 content.

REFERENCES:
patent: 4226601 (1980-10-01), Smith
patent: 4356000 (1982-10-01), Chappell
patent: 4586936 (1986-05-01), Schaffer et al.

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