Korea Research Institute of Chemical Technology

Sk Gas Co., Ltd.

Eun Sang Kim

Tae Wan Kim

Yong Ki Park

Miyoung Lee

Won Choon Choi

Deuk Soo Park

Chul Ung Kim

Ung Gi Hong

Soon Yong Jeong

Daesung Park

Jeong-Rang Kim

Hawon Park

Changyeol Song

Joo Wan Kim

Youjin Lee

Sanghyeon Park

Hae Bin Shin

A method for producing olefins using a circulating fluidized bed process, includes: supplying a propane-containing hydrocarbon mixture and a dehydrogenation catalyst into a riser, which is a fast fluidization regime, to cause a dehydrogenation reaction; separating, from a propylene mixture, the catalyst which is a product of the dehydrogenation reaction; removing unseparated hydrocarbon compounds remaining in the catalyst separated in the separating; continuously regenerating the catalyst by mixing the catalyst stripped in the removing with a gas containing oxygen; circulating the catalyst regenerated in the continuously regenerating to the supplying and resupplying it into the riser; and preparing propylene by cooling, compressing, and separating the propylene mixture which is a reaction product separated in the separating.

Method for producing olefins using novel catalyst and circulating fluidized bed process

A beta zeolite catalyst for the preparation of a BTEX (benzene, toluene, ethylbenzene, xylene) mixture from polyaromatic hydrocarbons and a preparation method of the same are disclosed. The beta zeolite catalyst demonstrates high conversion of polyaromatic hydrocarbons and high BTEX production yield by containing optimum contents of the group VIB metals and cocatalysts, so that it can be effectively used as a beta zeolite catalyst for the production of BTEX.

Beta zeolite catalyst for preparation of mixture of BTEX (benzene, toluene, ethylbenzene, xylene) from poly aromatic hydrocarbons and preparation method thereof

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Daejeon, South Korea

Eun Sang Kim