公开(公告)号：US10329399B2

公开(公告)日：2019-06-25

申请号：US15535801

申请日：2015-11-09

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： John G. Pendergast, Jr. ,  Johnny W. Masey ,  Robert D. Swindoll ,  Yujun Liu

IPC: B01D53/14 ,  C07C7/11 ,  C08J11/02

Abstract: Disclosed herein is a system for recovering olefins from a vent stream comprising an absorber; and a stripper; where the absorber and the stripper are in a recycle loop; and where the absorber is operative to treat a vent stream with a solvent to remove more than 99 wt % of a halogenated by-product contained in the vent stream and to recover 90 to 95 wt % of olefin molecules present in the vent stream; and where the stripper is operative to remove more than 99 wt % of the halogenated by-products present in the solvent; and where the solvent is recycled to the absorber.