SELECTIVE REDUCTION IN CONTENT OF BENZENE AND LIGHT UNSATURATED COMPOUND IN HYDROCARBON FRACTION

Title:

SELECTIVE REDUCTION IN CONTENT OF BENZENE AND LIGHT UNSATURATED COMPOUND IN HYDROCARBON FRACTION

Document Type and Number:

Japanese Patent JP3806810

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To reduce the content of benzene or unsaturated compounds in a raw material at a low cost without deteriorating the octane number by passing a hydrocarbon fraction raw material through a distillation zone equipped with a hydrogenating zone and then passing an effluent from the distillation zone containing a specific hydrocarbon through a paraffin isomerizing zone.
SOLUTION: (A) A raw material 1 mostly containing (A1)≥5C hydrocarbons and further (A2) 1-6C unsaturated compounds including benzene is treated in a distillation zone containing a catalyst bed 3 combined with a hydrogenating reactional zone to hydrogenate at least a part of the compounds (A2) in the presence of a hydrogenating catalyst and hydrogen (4c) and (4d) in the zone. An effluent from the reactional zone is at least partially introduced into the distillation zone so as to ensure the continuity of the distillation. The effluent 9 with an extremely reduced content of the hydrocarbons (A1) is finally taken out of the top of the distillation zone and a part of the effluent 9 containing 5-6C paraffins is treated in the presence of an isomerizing catalyst and isomerized in an isomerizing zone 18.

More Like This:

WO/2008/092232	METHOD AND SYSTEM FOR RECOVERING AROMATICS FROM A NAPHTHA FEEDSTOCK
JP3859713	Modification method using a catalyst containing alkali metal or alkaline earth metal

Inventors:

Paul Mikitenko
Christine travert
Jankojin
Charles Cameron
Jean Luc Nocca
Francoise Monteco

Application Number:

JP34932396A

Publication Date:

August 09, 2006

Filing Date:

December 27, 1996

Export Citation:

Click for automatic bibliography generation Help

Assignee:

INSTITUT FRANCAIS DU PETROL

International Classes:

C10G35/09; C10G69/08; C10G45/36; C10G45/40; C10G45/48; C10G45/52; C10G65/08; (IPC1-7): C10G69/08; C10G35/09; C10G45/36; C10G45/40; C10G45/48; C10G45/52

Domestic Patent References:

JP7216366A
JP47039108A
JP4218591A
JP5294851A
JP63079842A

Attorney, Agent or Firm:

Einosuke Kishimoto
Moriichi Kishimoto
Akira Watanabe
Norihiko Hibi

Previous Patent: CASTING DEVICE

Next Patent: SUSPENSION BRACKET DEVICE FOR AIR CONDITIONER