Korea Research Institute of Chemical Technology

Korea National University of Transportation Industry-academic Cooperation Foundation

Sk Gas Co., Ltd.

Chaeeun Yeo

Yong Ki Park

Miyoung Lee

Won Choon Choi

Deuk Soo Park

Ung Gi Hong

Daesung Park

Hawon Park

Changyeol Song

Sungwon Kim

Disclosed is a method of producing an olefin using a circulating fluidized bed process, including: (a) supplying a hydrocarbon mixture including propane and a dehydrogenation catalyst to a riser which is in a state of a fast fluidization regime, and thus inducing a dehydrogenation reaction; (b) separating an effluent from the dehydrogenation reaction into the catalyst and a propylene mixture; (c) stripping, in which a residual hydrocarbon compound is removed from the catalyst separated in step (b); (d) mixing the catalyst stripped in step (c) with a gas containing oxygen and thus continuously regenerating the catalyst; (e) circulating the catalyst regenerated in step (d) to step (a) and thus resupplying the catalyst to the riser; and (f) cooling, compressing, and separating the propylene mixture, which is a reaction product separated in step (b), and thus producing a propylene product.

Method of producing olefin using circulating fluidized bed process

Growing community of inventors

Chungju-si, South Korea

Chaeeun Yeo