Catalyst regeneration procedure

Details Catalyst regeneration procedure Catalyst regeneration procedure

1973-08-16

1976-02-17

Douglas, Winston A.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

252415, C10g 3508, B01j 1118

Patent

active

039390624

ABSTRACT:
Supported iridium-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by contacting the catalyst, prior to contact with oxygen at elevated temperature, with a chlorine-containing reagent to increase the catalyst chlorine content to at least 1.0 wt. %, based on anhydrous catalyst, and thereafter contacting the catalyst with a gaseous mixture containing oxygen, a chlorine containing reagent, and water at a temperature of about 750.degree. to 1000.degree.F. for a time sufficient to burn at least a portion of the carbonaceous residues from the catalyst.

REFERENCES:
patent: 3117076 (1964-01-01), Brennan et al.
patent: 3537980 (1970-11-01), Kluksdahl
patent: 3554902 (1971-01-01), Buss
patent: 3573199 (1971-03-01), McCoy
patent: 3578583 (1971-05-01), Buss
patent: 3622520 (1971-04-01), Hayes
patent: 3637524 (1972-01-01), Johnson et al.
patent: 3654142 (1972-04-01), Moravec, Jr. et al.
patent: 3684693 (1972-08-01), Sinfelt
patent: 3718578 (1973-02-01), Buss et al.
patent: 3764557 (1973-10-01), Kluksdahl

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