Production of aromatics from aliphatics

Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By ring formation from nonring moiety – e.g. – aromatization,...

Reexamination Certificate

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C585S419000

Reexamination Certificate

active

07982080

ABSTRACT:
In a process for converting a low carbon number aliphatic hydrocarbon to higher hydrocarbons including aromatic hydrocarbons, a feed containing the aliphatic hydrocarbon is contacted with a dehydrocyclization catalyst under conditions effective to convert the aliphatic hydrocarbon to aromatic hydrocarbons and produce an effluent stream comprising aromatic hydrocarbons and hydrogen. The dehydrocyclization catalyst comprises a metal or metal compound and a molecular sieve wherein the ratio of the amount of any Bronsted acid sites in the catalyst to the amount of said metal in the catalyst is less than 0.4 mol/mol of said metal.

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