Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent
1992-06-01
1994-10-04
Myers, Helane
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
208213, 208212, C10G 6902
Patent
active
053523547
ABSTRACT:
Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha by hydrodesulfurization followed by treatment over an acidic catalyst defined by its x-ray diffraction pattern and preferably comprising the synthetic zeolite MCM-22. The treatment over the acidic catalyst in the second step restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product with an octane number comparable to that of the feed naphtha. In favorable cases, using feeds of extended end point such as heavy naphthas with 95 percent points above about 380.degree. F. (about 193.degree. C.), improvements in both product octane and yield relative to the feed may be obtained.
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Fletcher David L.
Hilbert Timothy L.
McGovern Stephen J.
Sarli Michael S.
Shih Stuart S.
Keen M. D.
McKillop A. J.
Mobil Oil Corporation
Myers Helane
LandOfFree
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