Abstract
Green River oil shale was retorted in an atmosphere of carbon dioxide. An externally heated laboratory pressure retort was used. The effects of retort heat-up rate, gas flow rate through the retort, maximum retort temperature, system pressure on oil and gas properties and yields were studied. It was found that oil yield is inversely proportional to system pressure while gas yield is proportionally related to the pressure. High pressure also improves the pour point and viscosity of the crude shale oil. Correlations of oil and gas yields and properties with the test conditions were determined by least squares analysis of the data and are reported. 2 figures, 8 tables.
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