Studies have been carried out on 31- and 24-gallons-of-oi1-per-ton oil shale from the Green River Formation to study the effects of pressure, sweep gas rate, and heating rate during batch-wise retorting in a hydrogen atmosphere. The studies were performed in a vertical pressure retort which was heated at a predetermined fixed rate to a final bed temperature of approximately 1,000°F. The hydrogen sweep gas was passed downward through the shale bed during the experiments. The effects of pressure ranging from atmospheric to 1,500 psig, nominal heating rates ranging from 25 to 250°F/hr, and hydrogen sweep gas rates ranging from 10 to 120 scf/hr/ft2 of bed cross-section have been studied. Oil, gas, water, and spent shale yields are reported along with analyses of product oil, gas, and spent shale. Organic carbon utilization is also reported.
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