C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/195
C10G 35/06 (2006.01) B01J 23/656 (2006.01) C10G 35/09 (2006.01) C10G 59/02 (2006.01) H01M 10/39 (2006.01)
Patent
CA 1291437
ABSTRACT OF THE DISCLOSURE A multi-stage catalytic reforming process using a catalyst having a high rhenium to platinum ratio in the first stage or stages and a catalyst having a still higher rhenium to platinum ratio for the last stage. The process comprises. (a) contacting a naphtha feed with a first stage catalyst comprising rhenium and platinum, and having a rhenium to platinum weight ratio of at least 1.7, under catalytic reforming conditions in one or more first reforming stages of a reforming unit to obtain intermediate reformate; and (b) contacting the intermediate reformate, under catalytic reforming conditions in a last stage of the reforming unit, with a last stage catalyst comprising rhenium and 0.2 to 2.0 weight percent platinum, and having sufficient rhenium so that the last stage catalyst has at least 0.5 weight percent rhenium beyond that necessary to attain a 1.7 rhenium to platinum weight ratio.
571009
Chen Hong C.
Detz Cliff M.
Tamm Paul W.
Chen Hong C.
Chevron Research And Technology Company
Detz Cliff M.
Smart & Biggar
Tamm Paul W.
LandOfFree
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