Process for producing high octane gasoline

Details Process for producing high octane gasoline Process for producing high octane gasoline

1986-07-31

1987-09-22

Metz, Andrew H.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208110, 208112, C10G 4702

Patent

active

046953680

ABSTRACT:
A process for producing a high octane gasoline from a hydrocarbon feedstock in which the feedstock is contacted in the presence of hydrogen under hydrocracking conditions, preferably ammonia-rich hydrocracking conditions, with a hydrocracking catalyst comprising at least one hydrogenation metal component in combination with a crystalline, silicoaluminophosphate molecular sieve having pores defined by 12-membered rings of oxygen atoms. The preferred silicoaluminophosphate molecular sieve is SAPO-5 molecular sieve and the catalyst preferably contains both a Group VIB metal hydrogenation component, such as molybdenum or tungsten, and a Group VIII hydrogenation metal component, such as nickel or cobalt. It has been found that such a process produces gasoline boiling fractions having substantially increased research and motor octane numbers.

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B. M. Lok, C. A. Messina, R. L. Patton, R. T. Gajek, T. R. Cannan and E. M. Flanigen, "Silicoaluminophosphate Molecular Sieves: Another New Class of Microporous Crystalline Inorganic Solids," Journal of the American Chemical Society, vol. 106, 1984, pp. 6092-6093.

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