Title:
METHOD FOR REGENERATING CATALYST FOR MANUFACTURING CONJUGATED DIOLEFIN
Document Type and Number:
WIPO Patent Application WO/2017/146027
Kind Code:
A1
Abstract:
An objective of the present invention is to provide a method for regenerating a catalyst for manufacturing a conjugated diolefin by subjecting a monoolefin having at least 4 carbon atoms to gas-phase catalytic oxidative dehydrogenation, said method enabling the stable, long-term manufacture of a conjugated diolefin at a sustainable yield while reducing catalyst damage. This method for regenerating a catalyst for manufacturing a conjugated diolefin by subjecting a monoolefin have at least 4 carbon atoms to gas-phase catalytic oxidative dehydrogenation is characterized by performing the regeneration process such that the ratio R2/R1 of the average pore diameter R1 of the catalyst before being used in the reaction and the average pore diameter R2 of the catalyst after the regeneration reaches at least 0.59.
Inventors:
NAKAZAWA YUTA (JP)
OKUMURA SHIGEKI (JP)
NISHIZAWA BUNGO (JP)
OBATA TOMOHIRO (JP)
OKUMURA SHIGEKI (JP)
NISHIZAWA BUNGO (JP)
OBATA TOMOHIRO (JP)
Application Number:
PCT/JP2017/006307
Publication Date:
August 31, 2017
Filing Date:
February 21, 2017
Export Citation:
Assignee:
NIPPON KAYAKU KK (JP)
International Classes:
B01J38/12; B01J23/887; B01J23/94; C07C5/48; C07C11/167; C07B61/00
Domestic Patent References:
| WO2014086815A1 | 2014-06-12 | |||
| WO2015090998A1 | 2015-06-25 |
Foreign References:
| JP2012092092A | 2012-05-17 | |||
| CN103071544A | 2013-05-01 |
Attorney, Agent or Firm:
KAWAGUTI & PARTNERS (JP)
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