Chevron U.s.a. Inc.

Theo Maesen

Tom Harris

Robert Martin Carlson

Jeremy E Dahl

Shenggao Liu

Hye Kyung C Timken

Waqar R Qureshi

Hydroprocessing such as hydrocracking is advantageously employed in processes for the recovery and purification of higher diamondoids from petroleum feedstocks. Hydrocracking and other hydroprocesses degrade nondiamondoid contaminants.

Processes for concentrating higher diamondoids

A process for producing a high RON naphtha which comprises contacting a hydrocarbon feed stream comprising a mixture of the isomers of Cand Cparaffins with a CFI zeolite, such as CIT-5, in an adsorption zone, whereby the branched isomers of the Cand Cparaffins are preferentially adsorbed by the CFI zeolite as compared to the straight chain isomers, and recovering a naphtha product from the adsorption zone having a higher RON than the hydrocarbon feed stream, also including a hydroisomerization process and a hydrocracking process.

Process for producing high RON gasoline using CFI Zeolite

A process for producing a high RON naphtha which comprises contacting a hydrocarbon feed stream comprising a mixture of the isomers of Cand Cparaffins with ATS zeolite, such as SSZ-55, in an adsorption zone, whereby the branched isomers of the Cand Cparaffins are preferentially adsorbed by the ATS zeolite as compared to the straight chain isomers, and recovering a naphtha product from the adsorption zone having a higher RON than the hydrocarbon feed stream, also including a hydroisomerization process and a hydrocracking process.

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Rodeo, CA, United States of America

Theo Maesen