Regeneration of hydrocarbon conversion catalysts

Details Regeneration of hydrocarbon conversion catalysts Regeneration of hydrocarbon conversion catalysts

1976-11-05

1978-07-04

O'Keefe, Veronica

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260666R, 260668B, 26068368, 2606837, 26068375, 260671R, 26068351, 252411R, C07C 524, C07C 350, B01D 1506

Patent

active

040988333

ABSTRACT:
Hydrocarbon conversion catalysts comprising a metal halide in combination with a Bronsted acid containing fluorine that have become deactivated or partially deactivated by the formation of allyl and alkylaromatic carbonium ion complexes with the acid during contact with a hydrocarbon feedstock may be regenerated by contacting said catalyst, in the presence of molecular hydrogen and under suitable regeneration conditions, with a noble metal hydrogenation component. A preferred catalyst comprises tantalum pentafluoride and hydrogen fluoride. Palladium is the preferred noble metal hydrogenation component.

REFERENCES:
patent: 3558514 (1971-01-01), Schutt
patent: 3590007 (1971-07-01), Schutt
patent: 3852184 (1974-12-01), Siskin et al.
patent: 3948761 (1976-04-01), Siskin et al.
patent: 3975299 (1976-08-01), Crathorne et al.
patent: 4025459 (1977-05-01), Wristers
patent: 4036737 (1977-07-01), Wristers et al.
patent: 4036738 (1977-07-01), Wristers
George A. Olah et al. Carbonium Ions vol. II, pp. 783, 802, 803, Wiley, Intersciences, 1970.

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