Reactivation of steam-deactivated catalysts

Details Reactivation of steam-deactivated catalysts Reactivation of steam-deactivated catalysts

1984-07-16

1985-12-17

Gantz, D. E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208120, 585407, 585408, 585444, 585453, 585455, 585467, 585475, 585481, 585627, C10G 1105, C10G 4716

Patent

active

045591318

ABSTRACT:
A process is provided for using a reactivated catalyst composition comprising a crystalline zeolite material having a silicon/aluminum atomic ratio of at least about 3.5, said catalyst composition having been deactivated by contact with steam. The reactivation method involves the necessary steps of contacting said steam-deactivated catalyst composition with a metal salt solution, followed by contacting said metal salt solution contacted catalyst composition with an aqueous ammonium ion-containing solution.

REFERENCES:
patent: 3533959 (1970-10-01), Miale et al.
patent: 3849293 (1974-11-01), Ward
patent: 4021332 (1977-05-01), Wilson, Jr. et al.
patent: 4107031 (1978-08-01), Ward
patent: 4190553 (1980-02-01), Ward
patent: 4478950 (1984-10-01), Chu

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