Metal cation-modified alkylation catalysts

Details Metal cation-modified alkylation catalysts Metal cation-modified alkylation catalysts

1995-05-30

1998-04-14

Caldarola, Glenn

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Halogen or compound containing same

502203, 502231, 502327, 502328, 502330, 502333, 502334, 502335, 502346, 502348, 502349, B01J 27135

Patent

active

057390746

ABSTRACT:
A catalytic composite of a refractory inorganic oxide whose bound surface hydroxyl group has reacted with a Friedel-Crafts type metal halide and whose acidity has been modified by the deposition of a monovalent metal cation, especially an alkali metal cation, or alkaline earth metal cation shows superior selectivity and a significantly decreased cracking tendency relative to similar catalysts without the monovalent metal or alkaline earth metal cation. The resulting alkylate from an isobutane-butene feedstock shows a substantial increase in research octane number relative to the alkylate formed by a similar catalyst which has not been so modified by an alkali or alkaline earth metal cation.

REFERENCES:
patent: 2999074 (1961-09-01), Block et al.
patent: 3318820 (1967-05-01), Muller et al.
patent: 4786625 (1988-11-01), Imai et al.
patent: 5017543 (1991-05-01), De Clippeleir et al.
B.R. Shah in "Handbook of Petroleum Refining Processes", R.A. Meyers, editor, McGraw-Hill Book Company, 1986, pp. 1-3 through 1-28.

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