Title:
METHOD FOR PRODUCING 1,3-BUTADIENE
Document Type and Number:
WIPO Patent Application WO/2019/172250
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for producing 1,3-butadiene, the method being capable of diminishing the formation of deposits on tools being used in the production thereof. The method for producing 1,3-butadiene of the present invention is characterized by comprising a first step, in which a starting-material gas comprising 1-butene and 2-butene, the proportion of the 2-butene to the sum of the 1-butene and the 2-butene, which is taken as 100 vol%, being 50 vol% or higher, is subjected to an oxidative dehydrogenation reaction with a gas including molecular oxygen in the presence of a metal oxide catalyst to obtain gases including 1,3-butadiene, a second step, in which the product gases obtained in the first step are cooled, and a third step, in which the product gases that have undergone the second step are separated into gases including molecular oxygen and an inert gas and the other gases including 1,3-butadiene, by selective absorption into an absorbing solvent. The method is further characterized in that the product gases cooled in the second step have a methyl vinyl ketone concentration of 0-0.03 vol%.
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Inventors:
SUGIMOTO MAYU (JP)
SASAKI YUICHIRO (JP)
HIGUCHI SOSUKE (JP)
KIMURA NOBUHIRO (JP)
SASAKI YUICHIRO (JP)
HIGUCHI SOSUKE (JP)
KIMURA NOBUHIRO (JP)
Application Number:
PCT/JP2019/008623
Publication Date:
September 12, 2019
Filing Date:
March 05, 2019
Export Citation:
Assignee:
JSR CORP (JP)
JXTG NIPPON OIL & ENERGY CORP (JP)
JXTG NIPPON OIL & ENERGY CORP (JP)
International Classes:
C07C5/48; C07C11/167; C07B61/00; C07C7/11
Domestic Patent References:
| WO2015087668A1 | 2015-06-18 |
Foreign References:
| JP2016503073A | 2016-02-01 | |||
| JP2011521892A | 2011-07-28 | |||
| JP2017533931A | 2017-11-16 |
Attorney, Agent or Firm:
FUJIMOTO Nobuo et al. (JP)
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