Mineral oils: processes and products – Chemical conversion of hydrocarbons – Reforming
Patent
1996-06-26
1998-10-27
Caldarola, Glenn
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Reforming
208134, 585407, C10G 35095
Patent
active
058274227
ABSTRACT:
A catalyst composition and a process for converting a hydrocarbon stream such as, for example, gasoline to olefins and C.sub.6 to C.sub.8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The catalyst composition comprises an alumina and a silica wherein the weight ratio of aluminum to silicon is in the range of from about 0.002:1 to about 0.25:1. The process comprises contacting a hydrocarbon stream with the catalyst composition under a condition sufficient to effect the conversion of a hydrocarbon to an olefin and a C.sub.6 to C.sub.8 aromatic hydrocarbon. Also disclosed is a process for producing the catalyst composition which comprises: (1) contacting a zeolite with an effective amount of a base under a condition sufficient to effect a reduction in silicon content of said zeolite to produce a base-leached zeolite; and (2) contacting said base-leached zeolite with an effective amount of an acid under a condition sufficient to effect a reduction in aluminum content of said base-leached zeolite.
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Drake Charles A.
Wu An-hsiang
Caldarola Glenn
Phillips Petroleum Company
Preisch Nadine
Shay Lucas K.
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