Production of gasified products from ash containing bitumen prod

Details Production of gasified products from ash containing bitumen prod Production of gasified products from ash containing bitumen prod

1978-12-15

1980-12-30

Bashore, S. Leon

Gas: heating and illuminating

Processes

Fuel mixtures

208 8LE, 208 8R, C10J 346

Patent

active

042421020

ABSTRACT:
An ash containing heavy bitumen recovered from the deashing step of a coal liquefaction process is subjected to vacuum flashing to provide a residual product having a softening point of no less than 350.degree. F. and no greater than 550.degree. F. Subsequently, the flashed product is solidified and pulverized so that 100 percent passes through a 100 mesh screen. The pulverized fraction, without prior coking thereof, is entrained in a gas stream and then subjected to gasification.

REFERENCES:
patent: 2761772 (1956-09-01), Atwell
patent: 3808119 (1974-04-01), Bull et al.
patent: 3852183 (1974-12-01), Snell
patent: 3920418 (1975-11-01), Rice
patent: 4008054 (1977-02-01), Clancey et al.
patent: 4075079 (1978-02-01), Lang
patent: 4138223 (1979-02-01), Gorin
patent: 4146459 (1979-03-01), Burke

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