Process for suppressing carbonate decomposition in vapor phase w

Details Process for suppressing carbonate decomposition in vapor phase w Process for suppressing carbonate decomposition in vapor phase w

1979-03-26

1981-01-06

Levine, Herbert

Mineral oils: processes and products

Products and compositions

Lubricating oils

202106, C10G 102

Patent

active

042435110

ABSTRACT:
Oil shale containing relatively large quantities of alkaline carbonate minerals is retorted utilizing superheated water vapor at temperatures of from about 425.degree. C. to about 510.degree. C. Retorting with a sufficient carbon dioxide partial pressure effectively suppresses decomposition of the alkaline carbonates to obtain an environmentally acceptable retorted shale.

REFERENCES:
patent: 3480082 (1969-11-01), Gilliland
patent: 3960702 (1976-06-01), Allred

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