C4 LPG ENERGY SAVING OF C4 LPG SEPARATION APPARATUS

摘要

C4 LPG separation technology that maximizes economic efficiency by using quench water as a heat source in the C4 LPG separation process by optimizing the process operation while reducing energy and improving the thermal efficiency of the process. The present invention relates to an apparatus for separating normal butane and isobutane from a C4 LPG feed, wherein the C4 LPG feed is introduced and the waste heat stream is used as a heat source to discharge the normal butane stream to the bottom, A separation column; A first heat exchanger for preheating the C4 LPG feed using the isobutane stream flowing out to the upper portion as a heat source; And a second heat exchanger for raising the temperature of the C4 LPG feed that has passed through the first heat exchanger as a heat source to flow into the separation column.