Jeffery S Logsdon

US Patent:

20050154245, Jul 14, 2005

Filed:

Dec 18, 2003

Appl. No.:

10/740273

Inventors:

Rian Reyneke - Katy TX, US
Iain Sinclair - Walton, GB
Michael Floral - Aurora IL, US
Jeffery Logsdon - Naperville IL, US
Wayne Eng - League City TX, US
Christos Papadopoulos - Naperville IL, US

International Classification:

C07C007/04

US Classification:

585800000

Abstract:

A process for recovering hydrogen from a mixed hydrocarbon stream wherein the mixed hydrocarbon stream is subjected to a separation technique to produce a substantially hydrogen enriched stream, which is then recovered as hydrogen product. A process for providing refrigeration duty to the process is also disclosed, wherein a substantially methane enriched stream arising from the separation technique is expanded to provide cooling duty for the process.

US Patent:

20060135840, Jun 22, 2006

Filed:

Dec 20, 2004

Appl. No.:

11/017159

Inventors:

Rian Reyneke - Katy TX, US
Michael Foral - Aurora IL, US
Wayne Eng - League City TX, US
Iain Sinclair - Warrington, GB
Jeffery Logsdon - Naperville IL, US

International Classification:

C07C 7/00

US Classification:

585809000

Abstract:

A process for the recovery and purification of ethylene and optionally propylene from a stream containing lighter and heavier components that employs an ethylene distributor column and a partially thermally coupled distributed distillation system.

US Patent:

20090158737, Jun 25, 2009

Filed:

Dec 15, 2005

Appl. No.:

12/086380

Inventors:

Rik Klavers - Houston TX, US
Rian Reyneke - Katy TX, US
Iain Sinclair - Warrington, GB
Wayne W.Y. Eng - Calgary, CA
Jeffery S. Logsdon - Naperville IL, US
Christos G. Papadopoulos - Naperville IL, US
Michael J. Foral - Aurora IL, US

Assignee:

INEOS USA LLC - Lisle IL

International Classification:

F01K 13/00

US Classification:

60645

Abstract:

Processes using multiple expansion turbines for efficient recovery of power from a plurality of very high pressure streams of superheated vapor are disclosed. Beneficially, processes of the invention use at least two classes of expansion turbines. Processes according to this invention are particularly useful for recovery of power from very high pressure streams of superheated steam in an olefins manufacturing process. Such streams are typically produced by thermal cracking of suitable petroleum derived feed stocks, and the olefins being produced and purified are typically ethylene and/or propylene.

US Patent:

20040182752, Sep 23, 2004

Filed:

Mar 20, 2003

Appl. No.:

10/393460

Inventors:

Rian Reyneke - Katy TX, US
Michael Foral - Aurora IL, US
Christos Papadopoulos - Naperville IL, US
Jeffery Logsdon - Naperville IL, US
Wayne Eng - League City TX, US
Ian Sinclair - Warrington, GB

International Classification:

C10G007/02
C10G007/00
B01D003/00
B01D003/10

US Classification:

208/351000, 208/350000, 203/075000, 203/077000, 203/078000, 203/080000

Abstract:

This invention is an improved distillation sequence for the separation and purification of ethylene from a cracked gas. A hydrocarbon feed enters a C2 distributor column. The top of the C2 distributor column is thermally coupled to an ethylene distributor column, and the bottoms liquid of a C2 distributor column feeds a deethanizer column. The C2 distributor column utilizes a conventional reboiler. The top of the ethylene distributor is thermally coupled with a demethanizer column, and the bottoms liquid of the ethylene distributor feeds a C2 splitter column. The ethylene distributor column utilizes a conventional reboiler. The deethanizer and C2 splitter columns are also thermally coupled and operated at a substantially lower pressure than the C2 distributor column, the ethylene distributor column, and the demethanizer column. Alternatively, a hydrocarbon feed enters a deethanizer column. The top of the deethanizer is thermally coupled to an ethylene distributor column, and the ethylene distributor column utilizes a conventional reboiler. The top of the ethylene distributor column is thermally coupled with a demethanizer column, and the bottoms liquid of the ethylene distributor column feeds a C2 splitter column. The C2 splitter column operates at a pressure substantially lower than the ethylene distributor column, the demethanizer column, and the deethanizer column.