Wayne W Eng

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:

20050198998, Sep 15, 2005

Filed:

Mar 9, 2004

Appl. No.:

10/796608

Inventors:

Rian Reyneke - Katy TX, US
Michael Foral - Aurora IL, US
Christos Papadopoulos - Naperville IL, US
Wayne Eng - League City TX, US
Jeff Logsdon - Naperville IL, US

International Classification:

F25J001/00
F25J003/00

US Classification:

062612000, 062620000, 062623000

Abstract:

The recovery of ethylene from light gases at low temperature by the use of a mixed refrigeration system comprising methane, ehtylene and/or ethane, and propylene and/or propane.

US Patent:

20060021377, Feb 2, 2006

Filed:

Jul 30, 2004

Appl. No.:

10/903837

Inventors:

Rian Reyneke - Katy TX, US
Michael Foral - Aurora IL, US
Christos Papadopoulos - Naperville IL, US
Wayne Eng - League City TX, US
Jeff Logsdon - Naperville IL, US

International Classification:

F25B 41/00
F25J 1/00

US Classification:

062612000, 062513000

Abstract:

A refrigeration process is disclosed that employs a mixed refrigerant to chill a process gas stream in which a second stream is cooled against rewarming vaporized mixed refrigerant at low pressure and subsequently is at least partially vaporized against at least partially condensed mixed refrigerant at a higher pressure.

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:

20090112037, Apr 30, 2009

Filed:

Jul 28, 2005

Appl. No.:

11/922761

Inventors:

Rian Reyneke - Katy TX, US
Michael J. Foral - Aurora IL, US
Graeme Parker - Falkirk, GB
Wayne W.Y. Eng - League City TX, US

International Classification:

C07C 4/04

US Classification:

585648

Abstract:

The process of this invention represents an improved method for recovering a purified ethylene product and optionally a purified hydrogen product from the effluent of an autothermal cracking reactor. The process consists of cracked gas chilling, rough separation of a hydrogen-rich stream, demethanization, separation of ethylene from the demethanizer bottoms product, and final purification of the ethylene product. Hydrocarbons heavier than ethylene, including ethane, propylene, and propane are recycled to the ATC reactor. Optionally a purified hydrogen product can be obtained from the hydrogen-rich stream. The invention is particularly useful when the fresh hydrocarbons feed to the autothermal cracking reactor is ethane or a mixture of ethane and propane.

US Patent:

20090193846, Aug 6, 2009

Filed:

Jul 28, 2005

Appl. No.:

11/922951

Inventors:

Michael J. Foral - Aurora IL, US
Rian Reyneke - Katy TX, US
Wayne W.Y. Eng - League City TX, US
Graeme Parker - Falkirk, GB

International Classification:

F25J 3/02
C07C 7/04

US Classification:

62620

Abstract:

A process is described for the recovery of CO and optionally hydrogen from a stream containing CO, H2, methane, and hydrocarbons heavier than methane. The process is characterized by a two-stage removal () of C2+ hydrocarbons from the feed. In a first step the feed gas () is separated () into a first C2+ depleted stream () and a first C2+ enriched stream (). The first C2-enriched stream () is rectified () to produce a second C2+ depleted stream. The first and second C2+ depleted streams () are fed to a cryogenic system () fro recovery of CO () and optionally hydrogen (11).

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.