The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2020
Filed:
May. 01, 2018
SK Gas Co., Ltd., Seongnam-si, Gyeonggi-do, KR;
Korea Research Institute of Chemical Technology, Daejeon, KR;
Deuk Soo Park, Goyang-si, KR;
Ung Gi Hong, Seongnam-si, KR;
Hyeongchan Ahn, Seoul, KR;
Won Choon Choi, Daejeon, KR;
Yong Ki Park, Seoul, KR;
SK GAS CO., LTD., Seongnam-si, KR;
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, Daejeon, KR;
Abstract
Disclosed is an olefin production method including: pretreating a catalyst by providing reduction gas to an alumina type catalyst to produce olefin from the hydrocarbon including not less than 90 wt % of LPG (Stage 1); producing the olefin by providing the catalyst pretreated at Stage 1 into Riser of Fast Fluidization Regime to dehydrogenate the hydrocarbon (Stage 2); separating the mixture of the produced propylene and the catalyst used at Stage 2, and regenerating the separated catalyst (Stage 3); and recycling the catalyst regenerated at Stage 3 to the process of Stage 1 (Stage 4).