DISPLACEMENT DESORPTION PROCESS FOR LIGHT OLEFIN SEPARATION
摘要
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.
申请公布号
EP2609061(A4)
申请公布日期
2015.06.24
申请号
EP20110820213
申请日期
2011.08.26
申请人
KOREA INSTITUTE OF ENERGY RESEARCH;SK INNOVATION CO., LTD.
发明人
KIM, JONG NAM;PARK, JONG HO;BEUM, HEE TAE;LEE, SEONG JUN;LEE, JANG JAE;KIM, DONG WOOK;KO, CHANG HYUN;HAN, SANG SUP;CHO, SOON HAENG