METHOD FOR SUCCESSIVELY REACTING-REGENERATING AND PREPARING FLUID-TYPE OLEFIN AFTER PRE-TREATING WITH REDUCING GAS

Title:

METHOD FOR SUCCESSIVELY REACTING-REGENERATING AND PREPARING FLUID-TYPE OLEFIN AFTER PRE-TREATING WITH REDUCING GAS

Document Type and Number:

WIPO Patent Application WO/2017/003014

Kind Code:

A1

Abstract:

The present invention relates to a method for successively reacting-regenerating and preparing a fluid-type olefin after pre-treating with reducing gas, and more specifically, provides a method for successively reacting-regenerating and preparing a fluid-type olefin, the method comprising the steps of: pre-treating a catalyst by supplying reducing gas to the catalyst, the catalyst being for preparing olefin from hydrocarbon (step 1); preparing olefin from hydrocarbon by using the catalyst pre-treated in step 1 (step 2); separating the catalyst used in step 2 and the prepared olefin, then regenerating the separated catalyst (step 3); and recirculating the catalyst regenerated in step 3 to the process in step 1 (step 4), wherein steps 1 to 4 are repeatedly performed so as to successively regenerate the catalyst and prepare olefin. Compared to conventional processes, the preparation method of the present invention adds a process of pre-treating a catalyst by supplying reducing gas thereto, and thus the selectivity and yield of olefin may be enhanced. Further, hydrocarbon may be prevented from being converted into an unnecessary by-product due to contacting with a catalyst at an early stage of a reaction, and thus the process of hydrocarbon being converted into olefin is easily done, and a catalyst may be efficiently utilized.

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Inventors:

CHOI WON CHOON (KR)
PARK YONG KI (KR)
GONG SUJIN (KR)
PARK SUNYOUNG (KR)
HONG UNG GI (KR)
PARK DEUK SOO (KR)
KIM CHUL JIN (KR)

Application Number:

PCT/KR2015/008671

Publication Date:

January 05, 2017

Filing Date:

August 19, 2015

Export Citation:

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Assignee:

KOREA RES INST CHEMICAL TECH (KR)
SK GAS CO LTD (KR)

International Classes:

C07C2/08; C07C4/06; C07C7/20

Foreign References:

JPS58177922A	1983-10-18
JPH0975734A	1997-03-25
JP2010531221A	2010-09-24
JPH01110635A	1989-04-27
JPH08198782A	1996-08-06

Attorney, Agent or Firm:

ENVISION PATENT & LAW FIRM (KR)

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