Catalytic reforming process

Details Catalytic reforming process Catalytic reforming process

1982-07-02

1983-09-13

Davis, Curtis R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Reforming

C10G 35085

Patent

active

044040946

ABSTRACT:
A catalyst pretreat procedure wherein a copper, selenium, or sulfur promoted platinum-iridium catalyst, preferably a platinum-iridium-selenium catalyst, is contacted with dry hydrogen at a temperature ranging from about 600.degree. F.-1000.degree. F., at a hydrogen partial pressure ranging from about 1-40 atmospheres at a flow rate sufficient to maintain the moisture level below about 500 parts per million parts by volume of gas in the exit gas stream, for a period of time ranging at least about 16 hours, preferably at least 16 hours to about 200 hours. Treatment of these catalysts at such conditions will provide a selectivity advantage ranging from about 1 to 2 (LV%) higher than a catalyst otherwise similar but not pretreated in this manner.

REFERENCES:
patent: 4201661 (1980-05-01), Juquin et al.
patent: 4265786 (1981-05-01), Eberly et al.
patent: 4370224 (1983-01-01), Eberly et al.

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