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Process for converting C/sub 2/ to C/sub 8/ aliphatics to aromatics over a metal-activated zeolite

Patent ·
OSTI ID:6228001
A process is described for producing aromatic compounds which comprises contacting under conversion conditions, a feed containing at least 50 weight percent of C/sub 2/ to C/sub 8/ aliphatic hydrocarbons with a balanced acid/hydrogenation dual function catalyst comprising as the acid component a crystalline zeolite characterized by a Constraint Index within the approximate range of 1 to 12 and an alpha value no higher than about 100 and as the hydrogenation component an added metal constituent comprising at least 50 weight percent of a component consisting of zinc and a metal from Group IB of the Periodic Table. The weight of added metal in the catalyst is between about 0.5 to about 20 percent based on the total weight of catalyst whereby aliphatic hydrocarbons present in the feed are converted to aromatic compounds, and recovering the aromatic compounds, the zeolite as prepared either having a silica/alumina ratio of at least 220, or a silica/alumina ratio below 220 and being either steamed at a temperature of about 700/sup 0/ to 1300/sup 0/F for a period of about 0.5 to 20,000 hours or calcined at a temperature of about 800/sup 0/ to 1000/sup 0/C for a period of about 1 to 10 hours, to reduce its alpha value to below 100.
Assignee:
Mobil Oil Corp., New York, NY
Patent Number(s):
US 4804801
OSTI ID:
6228001
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CALCINATION
CATALYSTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PROCESSING
PRODUCTION
PYROLYSIS
QUANTITY RATIO
SILICA
SILICON COMPOUNDS
SILICON OXIDES
THERMOCHEMICAL PROCESSES
VERY HIGH TEMPERATURE
ZEOLITES
ZINC