Kirk S Liu

US Patent:

20130131417, May 23, 2013

Filed:

Nov 18, 2011

Appl. No.:

13/299656

Inventors:

Greg Werba - Arlington Heights IL, US
Steven Lankton - Wheeling IL, US
Steven Kozup - Chicago IL, US
Joao Jorge da Silva Ferreira Alves - Arlington Heights IL, US
Charles P. Luebke - Mount Prospect IL, US
Kirk Liu - Carol Stream IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C07C 5/00

US Classification:

585500

Abstract:

One example method of the invention includes a process for producing an olefin comprising the steps of communicating a feed stream that comprises a paraffin to a distillation section, communicating a distillation section output stream to a reactor and reacting the distillation section output stream in the reactor to produce a reactor output stream comprising an olefin.A splitter feed stream that is in communication with and downstream from the reactor output stream is communicated to an olefin splitter, and a splitter output stream is communicated to a heat pump compressor. A heat pump compressor output stream is communicated to the distillation section and heat is used from the heat pump compressor output stream to reheat a distillation section stream that contains unreacted paraffin.

US Patent:

20150166433, Jun 18, 2015

Filed:

Dec 17, 2013

Appl. No.:

14/109895

Inventors:

- Des Plaines IL, US
Kirk Liu - Chicago IL, US
Zhihao Fei - Naperville IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C07C 4/06

Abstract:

The present invention discloses a process optimizing the yield of propylene from a fluid catalytic cracking unit. The method combines a first catalytic reactor, a fractionation zone, a separation unit and a second catalytic reactor. The separation unit produces a first separation unit stream and a second separation unit stream, the first separation unit stream comprising Cparaffins, and the second separation unit stream comprising Colefins, wherein the second separation unit stream is passed to a second catalytic reactor and the first separation unit stream is removed from the process.