David J Fecteau

US Patent:

7745364, Jun 29, 2010

Filed:

Apr 6, 2007

Appl. No.:

11/697346

Inventors:

David J. Fecteau - Prospect Heights IL, US
Leon Yuan - Rockville MD, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

B01J 21/20

US Classification:

502 20, 502 34

Abstract:

In one exemplary embodiment, a process for regenerating a hydrocarbon conversion catalyst for a hydrocarbon conversion zone can generally include passing the hydrocarbon conversion catalyst through, sequentially, a catalyst-disengaging zone having a first atmosphere, an adsorption zone having a second atmosphere, and a regeneration zone including a combustion zone; introducing an inert gas between the first atmosphere and the second atmosphere; and passing a flue gas from the combustion zone to the adsorption zone.

US Patent:

7842257, Nov 30, 2010

Filed:

Dec 14, 2007

Appl. No.:

11/956959

Inventors:

David J. Fecteau - Des Plaines IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

B01J 8/02
B01J 35/02

US Classification:

422211, 422216, 422218, 422221

Abstract:

The distribution of fluids within a radial-flow reactor is improved using vertically extended cylinders distributed around the circumference of the vessel. Cylinders with a circular cross-section provide substantial vertical strength, and the configuration minimizes low-flow areas which could cause undesirable reactions. The cylinders are isolated from particles in the reactor by a particle-retaining outer conduit. The cylinders may be fabricated in panels for ease of installation and servicing.

US Patent:

7981272, Jul 19, 2011

Filed:

Sep 7, 2007

Appl. No.:

11/851433

Inventors:

Gary A. Dziabis - Oxshott, GB
Leon Yuan - Rockville MD, US
David J. Fecteau - Prospect Heights IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C10G 59/02
C10G 35/04

US Classification:

208 64, 208 63, 208 65, 208 99

Abstract:

A process for reforming a hydrocarbon stream in a reforming unit can include passing a gas including a halogen-containing material from a product separation zone through an adsorption zone to remove at least some of the halogen-containing material before the gas enters a first reforming stage having at least one fixed bed reaction zone.

US Patent:

20080110801, May 15, 2008

Filed:

Nov 9, 2006

Appl. No.:

11/558262

Inventors:

Leon Yuan - Rockville MD, US
David J. Fecteau - Prospect Heights IL, US
William M. Hartman - Des Plaines IL, US
William D. Schlueter - Lake in the Hills IL, US

International Classification:

C10G 69/08

US Classification:

208 63, 422189

Abstract:

An exemplary process can include passing a hydrocarbon stream through a reforming unit. The reforming unit may include a heater, which in turn generally includes a convection section and a radiant section, and a plurality of reforming reaction zones. Generally, the hydrocarbon stream is heated in the convection section for reacting in one of the reforming reaction zones to which the hydrocarbon stream is sent and the hydrocarbon stream is heated in the radiant section of the heater for reacting in the other reforming reaction zone to which the hydrocarbon stream is sent.

US Patent:

20090032440, Feb 5, 2009

Filed:

Aug 1, 2007

Appl. No.:

11/832059

Inventors:

David J. Fecteau - Elmhurst IL, US
Christopher Naunheimer - Elmhurst IL, US

International Classification:

B01J 8/12

US Classification:

208152, 422220

Abstract:

One exemplary embodiment can include a method of controlling a catalyst transfer vessel cycle of loading and unloading based on an expected level of a catalyst in a downstream vessel for a hydrocarbon conversion unit. The method can include calculating an expected catalyst level in the downstream vessel based on the unloading of the catalyst transfer vessel to adjust a setpoint to change the catalyst transfer vessel cycle of loading and unloading.

US Patent:

20090035198, Feb 5, 2009

Filed:

Aug 1, 2007

Appl. No.:

11/832008

Inventors:

David J. Fecteau - Elmhurst IL, US
Paul A. Sechrist - Elmhurst IL, US
Christopher Naunheimer - Elmhurst IL, US

International Classification:

B01J 8/12

US Classification:

422216

Abstract:

One exemplary embodiment can include an apparatus for transferring catalyst from a regeneration zone to a reaction zone in a hydrocarbon conversion unit. The hydrocarbon conversion unit can include a transfer vessel, and first, second, and third lines. The transfer vessel can transfer regenerated catalyst from the regeneration zone at a first pressure to the reaction zone at a second pressure where the second pressure is greater than the first pressure. Generally, the first line communicates the catalyst to the transfer vessel and is coupled to a first valve to allow catalyst into the transfer vessel and the second line communicates the catalyst from the transfer vessel and is coupled to a second valve to allow catalyst out of the transfer vessel. The third line for allowing the passage of gas therethrough may be at a pressure higher than the first pressure having a first portion communicating with the transfer vessel and having a second portion coupled to third and fourth valves. Each of the third and fourth valves can have a first position that is open and a second position that is closed, which may correspond, respectively, to the opening and closing of the first and second valves to allow gas to pass therethrough.

US Patent:

20090320370, Dec 31, 2009

Filed:

Jun 30, 2008

Appl. No.:

12/164779

Inventors:

David J. Fecteau - Des Plaines IL, US
Leon Yuan - Des Plaines IL, US
William D. Schlueter - Des Plaines IL, US

International Classification:

C10J 1/20

US Classification:

48199 R

Abstract:

Methods for improving the efficiency of a catalytic reforming recycle gas compressor by combining a high molecular weight light hydrocarbon process stream from a unit operation associated with the catalytic reforming process with a lower molecular weight reactor off gas recycle stream to form a combined recycle gas stream.

US Patent:

61066966, Aug 22, 2000

Filed:

Dec 4, 1998

Appl. No.:

9/206175

Inventors:

David John Fecteau - Prospect Heights IL
Kenneth David Peters - Elmhurst IL

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C10G 5902
C10G 3512

US Classification:

208 64

Abstract:

This invention is a reforming process that employs at least two moving bed reaction zones. One of the reaction zones, called the lead reaction zone, passes catalyst particles and a hydrocarbon-containing effluent to the other reaction zone, which operates at an inlet temperature that is at least 60. degree. F. (33. degree. C. ) hotter than the lead reaction zone. In a preferred embodiment, this invention employs no heating between the combined feed exchanger and the lead reaction zone. This invention is particularly applicable to reforming processes that employ continuous regeneration sections.