Abstract: Disclosed is an olefin production method which includes: (a) providing the regenerated catalyst and the hydrocarbon including not less than 90 wt % of LPG into Riser of Fast Fluidization Regime, and dehydrogenating in the presence of an alumina type catalyst; (b) separating an effluent from the dehydrogenation reaction into the catalyst and propylene mixture; (c) stripping to remove the hydrocarbon compound included in the catalyst separated at stage (b); (d) mixing the catalyst stripped at stage (c) with the gas including oxygen, and continuously regenerating it; (e) recycling the catalyst regenerated at stage (d) to stage (a), and providing it again into Riser; and (f) producing propylene product by cooling, compressing and separating propylene mixture of the reaction product separated at stage (b).
Type:
Application
Filed:
May 1, 2018
Publication date:
October 31, 2019
Applicants:
SK GAS CO., LTD., KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
Inventors:
Deuk Soo PARK, Ung Gi HONG, Hyeongchan AHN, Won Choon CHOI, Yong Ki PARK
Abstract: An embodiment of this invention provides a method of effectively producing propylene by separating reaction products obtained by dehydrogenating propane-containing feedstock, using an adsorption process in lieu of conventional low-temperature separation processes.
Type:
Grant
Filed:
December 4, 2015
Date of Patent:
March 5, 2019
Assignee:
SK Gas Co., Ltd.
Inventors:
Chul Jin Kim, Deuk Soo Park, Kyung Min Kim