Treatment of bituminous schists

Details Treatment of bituminous schists Treatment of bituminous schists

1977-08-05

1979-05-01

Levine, Herbert

Mineral oils: processes and products

Phenolic or toxic oils

201 40, 202262, 208 11R, C01B 4718, C10G 102

Patent

active

041522435

ABSTRACT:
A process for treating bituminous schists including the steps of crushing the bituminous schist, feeding said schist to the top of a retort, pyrolyzing the crushed schist in said retort as it is moved downwardly therein through a combustion zone into which air is introduced, removing volatiles from the upper part of the retort, and removing spent schist from the bottom of the retort, said process being characterized by maintaining the combustion zone at a predetermined level in the retort by feeding the schist in a gradual and even manner.

REFERENCES:
patent: 2714472 (1955-08-01), Richardson
patent: 3044859 (1962-07-01), Parker
patent: 3107985 (1963-10-01), Huntington
patent: 3325395 (1967-06-01), Ban
patent: 3693812 (1972-09-01), Mahr et al.
patent: 3736247 (1973-05-01), Jones et al.

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