METHOD OF SEPARATING AN OLEFIN FROM A GAS STREAM

摘要

THE PRESENT INVENTION RELATES TO A METHOD OF SEPARATING AN OLEFIN FROM A GAS STREAM, SAID GAS STREAM COMPRISING THE OLEFIN AND AT LEAST ONE OTHER COMPONENT, SAID METHOD COMPRISING (i) COMPRESSING AND COOLING THE GAS STREAM; (ii) SEPARATING THE OLEFIN FROM THE GAS STREAM BY ABSORBING THE OLEFIN IN AN ABSOR- BENT; (iii) SEPARATING THE OLEFIN FROM THE ABSORBENT BY DESORPTION; WHEREIN COMPRESSING OR COOLING OR COMPRESSING AND COOLING IN (i) IS CARRIED OUT AT LEAST TWICE.