Process for treating naphtha

Details Process for treating naphtha Process for treating naphtha

C - Chemistry, Metallurgy

10

G

196/140

C10G 67/02 (2006.01) C10G 31/08 (2006.01)

Patent

CA 1065781

ABSTRACT OF THE DISCLOSURE The invention is a process in which a pyrolysis naphtha contain- ing olefinically unsaturated components is heated in the presence of water, thereby polymerizing the olefinically unsaturated components and yielding a treated naphtha. As the olefinically unsaturated components of pyrolysis naphtha form gums during heat treatment and distillation and also contribute to foul odours, low volatilities, poor stability and low octane values of pyrolysis naphthas, their removal by polymerization yields a treated naphtha which is a more valuable product than pyrolysis naphtha. In a preferred form of the invention treated naphtha is subjected to hydrogenation which yields a naphtha containing aromatic components which can be recovered.

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