Method for reforming low grade coals

Details Method for reforming low grade coals Method for reforming low grade coals

1978-02-23

1979-11-27

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 106

Patent

active

041760417

ABSTRACT:
In a method for reforming low grade coal to a carbonaceous material suitable for the production of metallurgical coke, steam coal (noncoking coal), such as sub-bituminous coal, brown coal, etc., is mixed with a catalyst, a co-catalyst (sulfur) and a hydrocarbonaceous heavy oil, and the mixture is thermally reformed in a reducing gaseous atmosphere at elevated pressure and temperature (400.degree. to 450.degree. C.) and the resultant reaction mixture is distilled at a reduced pressure of 40-150 mm Hg and at a temperature of 280.degree. to 350.degree. C. An iron type catalyst is used in proportions up to 3 wt.% based on the coal (on an ash-free, dry basis). The sulfur and heavy oil are recycled.

REFERENCES:
patent: 2377728 (1945-06-01), Thomas
patent: 3275546 (1966-09-01), Retallick
patent: 3671418 (1972-06-01), Gatsis
patent: 3775286 (1973-11-01), Mukherjee et al.
patent: 3884794 (1975-05-01), Bull et al.

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