Alkylaromatic isomerization process
AssigneeChevron Research Company
InventorRobert L. Jacobson
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Abstract
An alkylaromatic hydrocarbon is isomerized by contacting a feed including the alkylaromatic and hydrogen in the presence of 1.5-150 ppm free chloride, and not more than 10 ppm water, with a catalyst containing platinum, rhenium and more than 1.2 weight percent combined chloride on an alumina support at 650.degree.-950.degree. F and 100-300 psi hydrogen pressure.
Claims5
In a process for isomerizing an alkylaromatic hydrocarbon by contacting a feed including said hydrocarbon and hydrogen with a catalyst including 0.01-3 weight percent platinum and 0.01-3 weight percent rhenium on an alumina support at isomerization conditions including a temperature of 700.degree. F to 900.degree. F and a hydrogen pressure between 100 psi and 300 psi, the improved method for increasing the activity and selectivity of said catalyst in said process comprising:
- including in said catalyst greater than 1.2 weight percent combined chloride and contacting said feed with said catalyst in the presence of between 1.5 and 150 ppm, by volume, of free chloride and not more than 10 ppm, by volume, of water, based on the volume of said feed.
Dependencies are inferred from the claim text.