Evonik Degussa Gmbh

Evonik Operations Gmbh

Haohao Zhu

Martin Koerfer

Martin Körfer

Chiu Kee Cheung

Thorsten Merker

Rainer Malzkorn

Michael Eicker

Bruno Krudewig

The present invention relates to a process for purifying acrolein. The process includes the steps of a) splitting a liquid feed stream containing acrolein into at least a first liquid stream and a second liquid stream, b) introducing the first liquid stream with a temperature T1 into a distillation column at a point between the top and the bottom of the distillation column, c) introducing the second liquid stream with a temperature T2 into the distillation column at the top of the distillation column, d) withdrawing an overhead vapor stream enriched in acrolein from the distillation column, and e) withdrawing a bottom stream depleted in acrolein. The temperature T2 of the second liquid stream in step c) is lower than the temperature T1 of the first liquid stream in step b).

Process for the purification of acrolein

Growing community of inventors

Euskirchen, Germany

Haohao Zhu