公开(公告)号：US20160256815A1

公开(公告)日：2016-09-08

申请号：US14426919

申请日：2014-11-21

Applicant: LG CHEM, LTD.

Inventor： Dae Hyeon KIM ,  Jeong Seok LEE ,  Mi Kyung KIM ,  Jae IK LEE ,  Jong Ku LEE

IPC: B01D53/14 ,  C07C7/11

CPC classification number: B01D53/1425 ,  B01D11/0488 ,  B01D53/1418 ,  B01D53/1487 ,  B01D53/1493 ,  B01D2252/20405 ,  B01D2252/20431 ,  B01D2257/7022 ,  C07C5/32 ,  C07C5/48 ,  C07C7/11 ,  C07C11/167

Abstract: The present invention relates to a method of recovering an absorption solvent in a butadiene production process through oxidative dehydrogenation, the method including: a) transferring a light gas discharged from an upper portion of an absorption tower to a wash column; and b) recovering the absorption solvent included in the light gas by a solvent circulating in the wash column. Since an absorption solvent may be prevented from being introduced into a reactor, or being discharged to an outside of a system, economic efficiency of a butadiene production process is improved.

Abstract translation: 本发明涉及通过氧化脱氢在丁二烯生产过程中回收吸收溶剂的方法，该方法包括：a）将从吸收塔上部排出的轻质气体转移到洗涤塔; 和b）通过在洗涤塔中循环的溶剂回收包括在轻质气体中的吸收溶剂。 由于可以防止吸收溶剂被引入反应器中或被排放到系统的外部，所以丁二烯生产过程的经济效率提高。