Coal refining

Details Coal refining Coal refining

1979-09-13

1981-05-26

O'Keefe, Veronica

Mineral oils: processes and products

Phenolic or toxic oils

208 10, C10G 100

Patent

active

042696925

ABSTRACT:
A process for fossil fuel refining by contacting ground solid fossil fuel for about 1/2 to about 3 hours with phenol at a temperature of about 600.degree. to 690.degree. F. and a corresponding saturation pressure of about 250 to 430 psig, the phenol being present in greater amounts by weight than the fossil fuel and dissolving refined product from the fossil fuel leaving a solid fuel residue. The phenol containing the refined product is removed from the fuel residue while heated, followed by cooling and separation of the refined product from the phenol which is recycled to the solvent extraction process. The process provides refined products low in mineral matter and sulfur following a low pressure solvent refining process which does not require a proton donor, acid catalyst or an external source of hydrogen.

REFERENCES:
patent: 1881927 (1932-10-01), Pott et al.
patent: 2123380 (1938-07-01), Pott et al.
patent: 2147753 (1939-02-01), Pott et al.
patent: 2202901 (1940-06-01), Dreyfus
patent: 2476999 (1949-07-01), Orchin
patent: 3558468 (1971-01-01), Wise
patent: 4134821 (1979-01-01), Gorin

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