1,3-BUTADIENE PRODUCTION METHOD

WIPO Patent Application WO/2021/044919

A1

Provided is a 1,3-butadiene production method in which the formation of a solid component can be prevented or reduced and the cooling of a product gas can be performed stably for a long period in the step of cooling the product gas.　The method is characterized by comprising the steps of (A) subjecting oxygen and a raw material gas containing n-butene to an oxidative dehydrogenation reaction in the presence of a metal oxide catalyst to produce a product gas containing 1, 3-butadiene, (B) subjecting the product gas produced in step (A) to a washing treatment, (C) bringing the product gas that has been subjected to the washing treatment in step (B) into contact with a cooling medium to cool the product gas, and (D) subjecting the product gas that has been cooled in step (C) to selective adsorption onto an absorption medium to separate the product gas into molecular oxygen and an inert gas and another gas containing 1,3-butadiene, wherein the washing treatment is carried out by spraying the product gas onto a liquid surface of the washing solution to allow the product gas to contact with the washing solution in step (B).

WO/2014/148323

1,3-BUTADIENE PRODUCTION METHOD

WANG JUNJIE (JP)
MORI TAKASHI (JP)
TANAKA RYO (JP)

PCT/JP2020/032167

March 11, 2021

August 26, 2020

Click for automatic bibliography generation  

JSR CORP (JP)
ENEOS CORP (JP)

C07C5/48; C07B61/00; C07C11/167

JP2016500372A	2016-01-12
JPS60126235A	1985-07-05
JP2012111751A	2012-06-14
JP2013177380A	2013-09-09
JP2019508401A	2019-03-28
JP2018016566A	2018-02-01

FUJIMOTO Nobuo et al. (JP)

View/Download PDF      PDF Help

Previous Patent: METHOD FOR PRODUCING 1,3-BUTADIENE

Next Patent: ADHESIVE LAYER EVALUATION SYSTEM AND ADHESIVE LAYER EVALUATION METHOD