Process of continuously making coke of high density and strength

Details Process of continuously making coke of high density and strength Process of continuously making coke of high density and strength

1991-12-17

1995-06-13

Woodard, Joye L.

Distillation: processes, thermolytic

And shaping to desired form or configuration

Prior to charging to carbonizing zone

201 9, 201 20, 201 22, 201 24, 201 32, 201 44, C10B 4906

Patent

active

054239516

ABSTRACT:
Pieces of coke of high density and strength are made continuously from fine particles of bituminous or subbituminous or lignite coals or of mixtures thereof. The particles are generally oxygenated, mixed with water, compressed to squeeze out some of the water to obtain single bodies which are heat processed lying on a traveling grate on which they undergo drying, pyrolyzing, carbonizing and cooling.
Modifications include mixing in with the coal material(s) listed above, coke fines or char or anthracite coal; or limestone; or carbon-reducible oxides such as oxidic ores of Fe, Mn, Cr and quartzite in recited important proportions. Such formed coke bodies are useable in a submerged arc furnace or in a blast furnace or in an open hearth to produce desired intermediate or end metallic products. The pieces of coke with incorporated fine limestone burn without developing SO.sub.2.

REFERENCES:
patent: 3167487 (1965-01-01), Mansfield
patent: 3444046 (1969-05-01), Harlow
patent: 3470275 (1969-09-01), Ban
patent: 3966561 (1976-06-01), Hinkley
patent: 4022668 (1977-05-01), Palumbo et al.
patent: 4111755 (1978-09-01), Ban et al.
patent: 4141793 (1979-02-01), Aoki et al.
patent: 4419186 (1983-12-01), Wienert

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