Minquan Y Cheng

US Patent:

6660812, Dec 9, 2003

Filed:

Jun 15, 2001

Appl. No.:

09/882713

Inventors:

Keith H. Kuechler - Friendswood TX
Minquan Cheng - Evansville IN
Marc L. DeChellis - Houston TX
Russell D. Sellen - Beaumont TX
Gary F. Janda - Houston TX

Assignee:

ExxonMobil Chemical Patents Inc. - Houston TX

International Classification:

C08F 200

US Classification:

526 68, 526 75, 585327, 585407, 585408, 585413, 585518, 585520, 585639, 585903, 570189, 568459, 568579, 568840, 558303

Abstract:

Disclosed is a system of making an olefin derivative from a dilute olefin feed. Dilute olefin is sent to an olefin reaction unit to form an olefin derivative product. The olefin derivative product is recovered from the reaction unit while a vent stream is also removed. Olefin is separated from the vent stream, and the olefin is sent to the olefin reaction unit for additional processing.

US Patent:

8163808, Apr 24, 2012

Filed:

Dec 23, 2008

Appl. No.:

12/342978

Inventors:

Charles L. Kibby - Benicia CA, US
Minquan Cheng - Katy TX, US
Yun Lei - Sydney, AU
David Lawrence Trimm - Watsons Bay, AU
William L. Schinski - San Rafael CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA
Commonwealth Scientific and Industrial Research Organisation - Campbell

International Classification:

C07C 27/00

US Classification:

518700

Abstract:

A method is disclosed for converting syngas to Fischer-Tropsch (F-T) hydrocarbon products. A synthesis gas including carbon monoxide and hydrogen gas is provided to a F-T reactor. Also, acetylene is supplied to the F-T reactor. The ratio of the volume of acetylene to the volume of synthesis gas is at least 0. 01. The synthesis gas and acetylene are reacted under suitable reaction conditions and in the presence of a catalyst to produce F-T hydrocarbon products. The F-T hydrocarbon products are then recovered from the reactor. The synthesis gas and acetylene may be provided in a combined feed stream or introduced separately into the reactor. The acetylene enhanced syngas conversion in a F-T reactor results in the synthesis of F-T products which have a tighter distribution of intermediate length carbon products than do F-T products synthesized according to conventional methods.

US Patent:

8258195, Sep 4, 2012

Filed:

Mar 15, 2012

Appl. No.:

13/421601

Inventors:

Charles L. Kibby - Benicia CA, US
Minquan Cheng - Katy TX, US
Yun Lei - Sydney, AU
David Lawrence Trimm - Watsons Bay, AU
William L. Schinski - San Rafael CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA
Commonwealth Scientific and Industrial Research Organisation - Campbell

International Classification:

C07C 27/00

US Classification:

518700

Abstract:

A method is disclosed for converting syngas to Fischer-Tropsch (F-T) hydrocarbon products. A synthesis gas including carbon monoxide and hydrogen gas is provided to a F-T reactor. Also, acetylene is supplied to the F-T reactor. The ratio of the volume of acetylene to the volume of synthesis gas is at least 0. 01. The synthesis gas and acetylene are reacted under suitable reaction conditions and in the presence of a catalyst to produce F-T hydrocarbon products. The F-T hydrocarbon products are then recovered from the reactor. The synthesis gas and acetylene may be provided in a combined feed stream or introduced separately into the reactor. The acetylene enhanced syngas conversion in a F-T reactor results in the synthesis of F-T products which have a tighter distribution of intermediate length carbon products than do F-T products synthesized according to conventional methods.

US Patent:

20120168154, Jul 5, 2012

Filed:

Dec 20, 2011

Appl. No.:

13/332205

Inventors:

Daniel Chinn - Bay Point CA, US
Jen Kai Chen - Houston TX, US
James Ong - Houston TX, US
Minquan Cheng - Katy TX, US
Oluwasijibomi O. Okeowo - Clayton CA, US

Assignee:

Chevron U.S.A. Inc. - San Ramon CA

International Classification:

E21B 43/00

US Classification:

166267, 1661055

Abstract:

A method and system for processing produced fluids from a subterranean reservoir is disclosed. The system comprises: