FCCナフサからのベンゼン、トルエン及びキシレンの製造

Title:

FCCナフサからのベンゼン、トルエン及びキシレンの製造

Document Type and Number:

Japanese Patent JP4364316

Kind Code:

B2

Abstract:

Cracked naphtha feeds such as FCC naphtha and coker naphtha are upgraded to produce chemical grade BTX (benzene, toluene, xylene with ethylbenzene) while co-poducing a low sulfur gasoline of relatively high octane number. The cracked, sulfur-containing naphtha is processed by hydrodesulfurization followed by treatment over an acidic catalyst, preferably a zeolite such as ZSM-5 or zeolite beta with a hydrogenation component, preferably molybdenum. The treatment over the acidic catalyst in the second step restores the octane loss which takes place as a result of the hydrogenative treatment and results in a low sulfur gasoline product to permit a low sulfur gasoline of blending quality to be obtained with the BTX. The BTX can be extracted from the second stage effluent, preferably from a C6 - C8 fraction of this effluent.

Inventors:

Philip J. Angervin
High Kyun Cho Timken

Application Number:

JP19866697A

Publication Date:

November 18, 2009

Filing Date:

July 24, 1997

Export Citation:

Click for automatic bibliography generation Help