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Upgrading of Heavy Oil From The San Joaquin Valley of California by Aqueous Pyrolysis

  • John G. Reynolds (a1), Ann M. Murray (a1), Eric V. Nuxoll (a1), Glenn A. Fox (a1), Charles B. Thorsness (a1) and M. Rashid Khan (a2)...

Abstract

Midway Sunset crude oil and well-head oil were treated at elevated temperatures in a closed system with the presence of water. Mild to moderate upgrading, as measured by increase in API gravity, was observed at 400°C or above. Reduced pressure operation exhibited upgrading activity comparable to upgrading under normal aqueous pyrolysis conditions. Reduced pressure operation was obtained by the use of specific blending methods, a surfactant, and the proper amount of water. The use of metal complexes provided additional upgrading. The best of the minimum set tested was Co(ll) 2-ethylhexanoate. Fe, Zn, Mo, Cu, and Ni complexes also showed some levels of activity.

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1. Olsen, D. K., U. S. DOE report DE93000153 (1993).
2. McCollum, J. D. and Quick, L. M., U.S. Patent 3960706 (1976); A. K. S. Murthy, K. M. Patel, and A. Y. Bekker, The Third Unitar/UNDP International Conference on Heavy Crude and Tar Sand, Chapter 122, 1291–1296 (1985
3. Lewin, M. D., ACS Div. Fuel Chem., Preprints, 37(4), 15451547 (1992).
4. Ross, D. S., Jayaweera, I., and Hoogwater, S., ACS Div. Petrol. Chem., Preprints, 353–355 (1994).

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Upgrading of Heavy Oil From The San Joaquin Valley of California by Aqueous Pyrolysis

  • John G. Reynolds (a1), Ann M. Murray (a1), Eric V. Nuxoll (a1), Glenn A. Fox (a1), Charles B. Thorsness (a1) and M. Rashid Khan (a2)...

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