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PROCESSING IN-SITU OIL SHALE RETORT OFFGAS WITH A STRETFORD PLANT AT GEOKINETICS
Citation:
Taback, H., G. Quartucy, AND E. Bates. PROCESSING IN-SITU OIL SHALE RETORT OFFGAS WITH A STRETFORD PLANT AT GEOKINETICS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-85/184 (NTIS PB85239515), 1985.
Description:
The paper discusses the use of EPA's transportable Stretford process pilot plant on a 700-acfm slipstream of in-situ shale oil retort offgas to investigate H2S removal efficiency and process compatibility. This was the fourth application of the pilot plant which had demonstrated a continuously improving performance. During this test, the pilot plant was operated first with a venturi contactor alone and then with the venturi followed in series by a packed tower contactor. With the venturi alone, the plant achieved 95% removal efficiency, but its average performance was lower. With the addition of the packed tower, the removal efficiency reached 99+%. Excessive foaming of the process solution was experienced which was attributed to the presence of organic aerosol in the retort offgas.