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Title: Catalytic cracking of Mayan gas oil and selected hydrotreated products: Topical report

Technical Report ·
OSTI ID:5462431

The catalytic cracking of a Mayan vacuum gas oil and the products from mild, moderate, and severe hydrotreating of this gas oil was evaluated over a low-metal equilibrium catalyst in a microconfined bed unit (MCBU). Results obtained with the Mayan feedstocks are compared with those of an earlier study conducted with similar feedstocks obtained from a Wilmington (CA) crude oil. Two levels of catalytic cracking severity were used in the evaluation. Performance and product analysis showed that hydrotreating improves the yields obtained from catalytic cracking and the quality of the resultant products. In contrast to results obtained with the Wilmington feedstocks, conversion and gasoline yield do not improve with severity of the hydrotreating of the Mayan vacuum gas oils. The insensitivity of the cracking performance to hydrotreating severity may reflect the more facile removal of polar compounds (heteroatom compounds) on hydrotreating of the Mayan gas oil in comparison to the Wilmington. Sulfur and nitrogen contents of the liquid products (gasoline, light cycle oil, heavy cycle oil) decreased as the severity of the feed hydrotreating increased. 7 refs., 12 figs., 15 tabs.

Research Organization:
National Inst. for Petroleum and Energy Research, Bartlesville, OK (USA)
DOE Contract Number:
FC22-83FE60149
OSTI ID:
5462431
Report Number(s):
NIPER-280; ON: DE88001212
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
Country of Publication:
United States
Language:
English