Displacement desorption process for light olefin separation

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United States of America Patent

PATENT NO 9376354
APP PUB NO 20130206581A1
SERIAL NO

13819007

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Abstract

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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.

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Patent Owner(s)

  • KOREA INSTITUTE OF ENERGY RESEARCH;SK INNOVATION CO., LTD.;GLAXOSMITHKLINE BIOLOGICALS SA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beum, Hee Tae Daejeon, KR 16 21
Cho, Soon Haeng Daejeon, KR 10 47
Han, Sang Sup Daejeon, KR 16 44
Kim, Dong Wook Daejeon, KR 294 1563
Kim, Jong Nam Daejeon, KR 21 224
Ko, Chang Hyun Daejeon, KR 17 96
Lee, Jang Jae Seongnam-si, KR 4 8
Lee, Seong Jun Daejeon, KR 90 258
Park, Jong Ho Daejeon, KR 97 313

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