Uop Lcc

Simon E Albo

Chunqing Liu

Trung S Pham

Carl Liskey

Stanley Joseph Frey

Charles P Luebke

Lubo Zhou

Gregory R Werba

Xueliang Dong

Saadet Ulas Acikgoz

Mark M Davis

Steven Kozup

David W Greer

Mander Singh

Trung Pham

Gregory Werba

Carl W Liskey

Stanley J Frey

Systems and processes are provided to prevent light ends such as methane, ethylene and ethane from building up in an olefin/paraffin separation system that uses a combination of a membrane and distillation column for this separation. In one embodiment a small stripper column is provided downstream from a selective hydrogenation reactor. In the other embodiment, a surge vessel with a receiver is added to the retentate stream of the membrane unit.

Process and system for removal of light ends and non-condensables to prevent buildup in an olefin/paraffin membrane separation process

A multistage membrane system and a process for treating a gas stream is provided in which the multistage membrane system comprises at least two membrane units wherein a first stage membrane unit comprises a polymeric membrane and a second membrane unit comprises a microporous zeolitic inorganic membrane or a combination of a microporous zeolitic inorganic membrane and a polymeric membrane.

Multi-stage membrane systems with polymeric and microporous zeolitic inorganic membranes for gas separations

A process is provided for separation of light olefins and paraffins and particular for the separation of propylene and propane comprising sending at least one olefin/paraffin stream to a distillation column and a membrane unit to produce an olefin stream comprising at least 92 mol % olefin. In an embodiment of the invention where the membrane unit is placed downstream from the column which can produce propylene streams at polymer grade of over 99.5 mol % propylene.

Method and system for light olefin separation

Growing community of inventors

Evanston, IL, United States of America

Simon E Albo