Method for preparing dehydrocyclodimerization catalyst

Details Method for preparing dehydrocyclodimerization catalyst Method for preparing dehydrocyclodimerization catalyst

2007-08-28

2007-08-28

Wood, Elizabeth D. (Department: 1755)

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

Zeolite or clay, including gallium analogs

Gallium containing

C502S060000, C502S064000, C502S208000

Reexamination Certificate

active

10726203

ABSTRACT:
This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant process restores substantially all of the catalyst's lost activity. The process involves treating the catalyst with a fluid comprising water and drying the catalyst. The process is employed particularly advantageously in combination with coke removal for reactivating catalysts that contain coke deposits and that have also been hydrogen deactivated. This invention also relates to a method of producing a dehydrocyclodimerization catalyst that is resistant to hydrogen deactivation.

REFERENCES:
patent: 3493490 (1970-02-01), Plank et al.
patent: 3647680 (1972-03-01), Greenwood et al.
patent: 3652231 (1972-03-01), Greenwood et al.
patent: 3692496 (1972-09-01), Greenwood et al.
patent: 4043938 (1977-08-01), Reif et al.
patent: 4225419 (1980-09-01), Myers
patent: 4417975 (1983-11-01), Myers et al.
patent: 4435311 (1984-03-01), Sikkenga
patent: 4463209 (1984-07-01), Kursewicz et al.
patent: 4520118 (1985-05-01), Gane et al.
patent: 4600700 (1986-07-01), McHale
patent: 4605637 (1986-08-01), Chang et al.
patent: 4629716 (1986-12-01), Kemp
patent: 4629717 (1986-12-01), Chao
patent: 4705909 (1987-11-01), Yan
patent: 4746763 (1988-05-01), Kocal
patent: 4788171 (1988-11-01), Klendworth
patent: 4810687 (1989-03-01), Kemp
patent: 5169812 (1992-12-01), Kocal et al.
patent: 5212127 (1993-05-01), Kocal et al.
patent: 5258564 (1993-11-01), Kocal et al.
patent: 5321168 (1994-06-01), Roussel et al.
patent: 5401893 (1995-03-01), Gosling et al.
patent: 5559274 (1996-09-01), Hammerman et al.
patent: 5569791 (1996-10-01), Hammerman et al.
patent: 5600046 (1997-02-01), Gosling et al.
patent: 5741749 (1998-04-01), Crocco et al.
patent: 5990032 (1999-11-01), Wu et al.
patent: 6169050 (2001-01-01), Catinat et al.

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