LRK Patent Law Firm
Displacement desorption process for light olefin separation
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.
KOREA INSTITUTE OF ENERGY RESEARCH SK INNOVATION CO., LTD.
B B B B C B B C Y C
B01D B01D B01D B01D C07C B01D B01D C07C Y02P C07C
inventional additional additional additional inventional additional additional inventional additional inventional
Hee Tae Chang Hyun Soon Haeng Jong Ho Dong Wook Sang Sup Jang Jae Seong Jun Jong Nam
Beum Ko Cho Park Kim Han Lee Lee Kim