公开(公告)号：US10808999B2

公开(公告)日：2020-10-20

申请号：US15514272

申请日：2015-09-22

Applicant: Dow Global Technologies LLC

Inventor： Isa K. Mbaraka ,  William L. Jackson, Jr. ,  Martin A. Cogswell ,  Mark Siddoway ,  Brien A. Stears

IPC: F25J3/02 ,  C07C7/00 ,  C07C7/09 ,  C07C7/04

Abstract: A process for recovery of C2 and C3 components in an on-purpose propylene production system includes utilizing a packed rectifier with a countercurrent stream to strip C2 and C3 components from a combined de-ethanizer overhead lights vapor and cracked gas vapor stream.

公开(公告)号：US20170248364A1

公开(公告)日：2017-08-31

申请号：US15514272

申请日：2015-09-22

Applicant: Dow Global Technologies LLC

Inventor： Isa K. Mbaraka ,  William L. Jackson, JR. ,  Martin A. Cogswell ,  Mark Siddoway ,  Brien A. Stears

IPC: F25J3/02

Abstract: The disclosure provides a process for recovery of C2 and C3 components in an on-purpose propylene production system utilizing a packed rectifier with a countercurrent stream to strip C2 and C3 components from a combined de-ethanizer overhead lights vapor and cracked gas vapor stream.