B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/62, 260/576.
B01J 23/16 (2006.01) C07C 4/06 (2006.01) C07C 13/547 (2006.01) C07C 15/14 (2006.01) C07C 45/36 (2006.01) C07C 49/675 (2006.01)
Patent
CA 1168647
ABSTRACT Feedstocks of fused polynuclear aromatic hydrocarbons, such as phenanthrene, anthracene, fluorene, and mixtures thereof, are converted to fluorenone and biphenyl products by a catalytic oxycracking step using oxygen-containing gas and steam. Reaction conditions used are 700-1250°F temperature and 5-50 psia pressure. The process can utilize either a single oxycracking zone containing a bifunctional catalyst, or two reaction zones connected in series each containing a single functional catalyst. If desired, the intermediate products of fluorenone and biphenyl can be thermally hydro- cracked to produce additional benzene. Raw hydrocarbon feed materials having a normal boiling range of 500-900°F can be treated by hydrodealkylation to provide the fused polynuclear aromatic feedstock to the catalytic oxycracking step. Also, intermediate products from the oxycracking step are preferably hydrocracked in the same hydrodealkylation step to produce benzene product. The catalyst composition which is utilized comprises a mixture of at least one Group IIB metal oxide and an oxide of molybdenum or vanadium deposited on a .gamma.-alumina support.
389317
Barclay Robert Jr.
Huibers Derk T. A.
Shah Rajni C.
Gowling Lafleur Henderson Llp
Hri Inc.
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