METHOD FOR HYDROGENATING C5 FRACTION AND METHOD FOR PRODUCING OLEFINES

Title:

METHOD FOR HYDROGENATING C5 FRACTION AND METHOD FOR PRODUCING OLEFINES

Document Type and Number:

Japanese Patent JP2005213419

Kind Code:

A

Abstract:

To provide a hydrogenating method capable of reducing lowering of activity of a hydrogenation catalyst when hydrogenating a monoolefin and/or diolefin in a C5 fraction and a method for producing olefins in which the C5 fraction can effectively be utilized by mixing the C5 fraction with naphtha.

The method for hydrogenating the C5 fraction comprises hydrogenating a monoolefin and/or a diolefin after washing C5 fraction containing the monoolefin and/or the diolefin with water. In the hydrogenating method, the C5 fraction is washed with water by a method mixing the C5 fraction with water by using a static mixer and separating free water by separation by standing. In the hydrogenating method, the C5 fraction containing the monoolefin and/or the diolefin is preferably a C5 fraction produced by thermal decomposition of naphtha and left after extracting isoprene by an isoprene extraction plant.

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Inventors:

NAKAMURA OSAMU

Application Number:

JP2004023109A

Publication Date:

August 11, 2005

Filing Date:

January 30, 2004

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Assignee:

SUMITOMO CHEMICAL CO

International Classes:

C07C5/03; C07C9/14; C10G31/08; C10G45/32; C10G67/02; C10G69/06; (IPC1-7): C10G45/32; C07C5/03; C07C9/14; C10G31/08; C10G67/02; C10G69/06

Attorney, Agent or Firm:

Takashi Kuboyama
Toru Nakayama
Masayuki Enomoto

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