Catalytic reforming catalyst activation
AssigneePhilips Petroleum Company
InventorFan-Nan Lin
Life of this patent
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Abstract
Catalyst activation of a platinum reforming catalyst system contained in a multiple reactor system by simultaneously reducing the catalyst with hydrogen while introducing a nonmetallic chlorine-containing compound into a reactor of the multiple reactor system in an amount to add from about 0.05 to about 0.3 weight percent chlorine to the catalyst and thereafter purging the system with about 100 to about 50,000 cubic feet of hydrogen per cubic foot of catalyst resulting in a reforming system having increased activity and providing enhanced RON values with reduced cracking of feedstock.
Claims6
A process for activating a platinum-containing reforming catalyst contained in a multiple reaction zone system, said process comprises:
- (a) reducing said platinum-containing reforming catalyst with hydrogen;
- (b) simultaneously with step (a) contacting said platinum-containing reforming catalyst with a nonmetallic chlorine-containing compound by introducing said nonmetallic chlorine-containing compound into a reaction zone of said multiple reaction zone system under conditions to effect decomposition of said nonmetallic chlorine-containing compound thereby providing a chlorine-treated catalyst;
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- (c) thereafter purging said chlorine-treated catalyst with about 100 to about 50,000 cubic feet of hydrogen per cubic foot of said chlorine-treated catalyst prior to using said chlorine-treated catalyst having from about 1.05 to about 1.3 weight percent chlorine, in a reforming process.
A process for activating a platinum-containing reforming catalyst contained in a multiple reaction zone system, said process comprises:
- (a) reducing said platinum-containing reforming catalyst with hydrogen in the substantial absence of hydrocarbons;
- (b) simultaneously with step (a) contacting said platinum-containing reforming catalyst with a nonmetallic chlorine-containing compound comprising perchloroethylene by introducing said nonmetallic chlorine-containing compound into a reaction zone of said multiple reaction zone system under conditions to effect decomposition of said nonmetallic chlorine-containing compound thereby providing a chlorine-treated catalyst;
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- (c) thereafter purging said chlorine-treated catalyst with about 100 to about 50,000 cubic feet of hydrogen per cubic foot of said chlorine-treated catalyst prior to using said chlorine-treated catalyst in a reforming process.
Dependencies are inferred from the claim text.