BUTADIENE PREPARATION METHOD

Title:

BUTADIENE PREPARATION METHOD

Document Type and Number:

WIPO Patent Application WO/2018/124579

Kind Code:

A1

Abstract:

The present invention relates to a butadiene preparation method and preparation apparatus. According to the present invention, there is an effect of providing a butadiene preparation method and preparation apparatus, which use butane as a dilute gas instead of nitrogen when preparing butadiene by an oxidative dehydrogenation reaction of butane, so as to minimize the loss of hydrocarbons through: a condensation method, instead of an absorption method having been used when separating butadiene from a reaction product during a conventional use of nitrogen, for liquefying and separating butadiene by using a low-temperature refrigerant or cooling water; and an absorption method for recovering all of the hydrocarbons to be discharged upstream after condensation, thereby enabling processing economic feasibility for material costs, production costs, energy, and the like and high-purity butadiene to be ensured.

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Inventors:

LEE JAE IK (KR)
KIM EUN KYO (KR)
KIM MI KYUNG (KR)
LEE JEONG SEOK (KR)

Application Number:

PCT/KR2017/014964

Publication Date:

July 05, 2018

Filing Date:

December 18, 2017

Export Citation:

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Assignee:

LG CHEMICAL LTD (KR)

International Classes:

C07C5/333; C07C7/00; C07C7/04; C07C7/09; C07C11/167

Domestic Patent References:

WO2015051028A1

2015-04-09

Foreign References:

KR101256247B1	2013-04-22
KR101655557B1	2016-09-07
US20140200381A1	2014-07-17
US20150166439A1	2015-06-18

Other References: