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:
Jun. 28, 2016
Filed:
Aug. 26, 2011
Jong Nam Kim, Daejeon, KR;
Jong Ho Park, Daejeon, KR;
Hee Tae Beum, Daejeon, KR;
Seong Jun Lee, Daejeon, KR;
Jang Jae Lee, Seongnam-si, KR;
Dong Wook Kim, Daejeon, KR;
Chang Hyun Ko, Daejeon, KR;
Sang Sup Han, Daejeon, KR;
Soon Haeng Cho, Daejeon, KR;
Jong Nam Kim, Daejeon, KR;
Jong Ho Park, Daejeon, KR;
Hee Tae Beum, Daejeon, KR;
Seong Jun Lee, Daejeon, KR;
Jang Jae Lee, Seongnam-si, KR;
Dong Wook Kim, Daejeon, KR;
Chang Hyun Ko, Daejeon, KR;
Sang Sup Han, Daejeon, KR;
Soon Haeng Cho, Daejeon, KR;
KOREA INSTITUTE OF ENERGY RESEARCH, Daejeon, KR;
SK INNOVATION CO., LTD., Seoul, KR;
Abstract
A process and apparatus for separating an olefin from mixed gases containing light olefins is provided. The process includes adsorbing the olefin of an olefin-containing mixed gas in an adsorption column packed with an adsorbent selectively adsorbing the olefin; discharging gases other than the olefin through the outlet of the adsorption column; desorbing the adsorbed olefin by displacement using a desorbent, and separating the olefin from the desorbent, thereby producing a high-purity olefin. The apparatus includes adsorption columns packed with an adsorbent selectively adsorbing an olefin, and at least two distillation columns for separating an olefin/desorbent mixture and an olefin poor stream/desorbent into their components. If the olefin concentration of the off-gas from an olefin rinse step is higher than that of a raw material gas, recovering the olefin from the off-gas is carried out before or after the adsorption step.