Catalytic reforming process
AssigneeExxon Research & Engineering Co.
InventorsGerald E. Markley, William E. Winter
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Abstract
A process for reforming, with hydrogen, a naphtha in a reforming reactor provided with a rhenium promoted platinum catalyst over which the naphtha is contacted and reacted at reforming conditions to produce a C.sub.5.sup.+ liquid product of improved octane. The catalyst is contacted, on initiation of the reforming reaction, with a maximum of about 75 percent of the rate of hydrogen required for maintaining the optimum C.sub.5.sup.+ liquid yield over the length of the operating cycle. The hydrogen rate is increased not later than the time of line-out of the C.sub.5.sup.+ liquid yield to that required to maintain said optimum C.sub.5.sup.+ liquid yield.
Claims5
In a process for reforming, with hydrogen, a naphtha in a reforming reactor provided with a rhenium promoted platinum catalyst over which the naphtha is contacted and reacted at reforming conditions to produce a C.sub.5.sup.+ liquid product of improved octane, the improvement comprising
- contacting said catalyst on initiation of the reforming reaction at a maximum rate of about 75 percent of the hydrogen required for maintaining the optimum C.sub.5.sup.+ liquid yield over the length of the operating cycle, and thereafter
- increasing the hydrogen rate to that required to maintain said optimum C.sub.5.sup.+ liquid yield not later than the time of line-out of the C.sub.5.sup.+ liquid yield.
Dependencies are inferred from the claim text.