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Rejuvenation of deselectivated alkylation catalyst

Patent ·
OSTI ID:5879191
;
A process for alkylation of aromatic hydrocarbon reactants to dialkylbenzene products, whereby chemically modified zeolite catalysts are treated with an organic acid to enhance their intrinsic para-selectivity in the alkylation reaction. The modified zeolites which may be so reselectivated or improved comprise those crystalline zeolites having a constraint index of 1 to 12, a silica to alumina mole ratio of at least 12, and having a minor proportion of the oxide form of one or more chemical elements (e.g. phosphorus and magnesium) deposited thereon.
Assignee:
Mobil Oil Corp.
Patent Number(s):
US 4486616
OSTI ID:
5879191
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALCOHOLS
ALKYLATION
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
HYDROCARBONS
HYDROXY COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PRODUCTION
REGENERATION
SILICA
SILICON COMPOUNDS
SILICON OXIDES
ZEOLITES