Patent ID: 6133496
Filing Date: 2000-10-17
Classification: C07C

Abstract:
A process for isomerizing a hydrocarbon feedstock comprising saturated C.sub.6 hydrocarbons, said process comprising the steps of:contacting said hydrocarbon feedstock, in the presence of hydrogen, with a first isomerization catalyst composition in a first reaction zone operated under reaction conditions for isomerizing hydrocarbons including a first reaction temperature;withdrawing from said first reaction zone a first intermediate stream comprising cyclohexane and n-hexane;separating said first intermediate stream into a first product stream comprising cyclohexane and a second intermediate stream comprising n-hexane;contacting said second intermediate stream, in the presence of hydrogen, with a second isomerization catalyst composition in a second reaction zone operated under reaction conditions for isomerizing hydrocarbons including a second reaction temperature greater than said first reaction temperature of said first reaction zone; andwithdrawing from said second reaction zone a second product stream comprising isohexane.