Larry D Richardson

US Patent:

6884400, Apr 26, 2005

Filed:

Jun 22, 2001

Appl. No.:

09/887497

Inventors:

Kyle P. Austin - Roselle IL, US
James A. Szczurek - Arlington Heights IL, US
Larry D. Richardson - Village of Lakewood IL, US
David M. Kazell - Libertyville IL, US
Charles T. Ressl - Mount Prospect IL, US
Michael J. Vetter - Schaumburg IL, US
Gary A. Dziabis - Addison IL, US
Paul R. Cottrell - Arlington Heights IL, US
Mary Jo Wier - Schaumburg IL, US

Assignee:

UOP LLC - Des Plaines IL

International Classification:

F27B015/08

US Classification:

422216, 422145

Abstract:

A reactor and regeneration for effecting radial flow contact of a reactant stream with catalyst particles movable as an annular-form bed by gravity flow and for reducing stresses in the bed is disclosed.

US Patent:

53384407, Aug 16, 1994

Filed:

Dec 30, 1992

Appl. No.:

7/998331

Inventors:

Paul A. Sechrist - Des Plaines IL
Roger R. Lawrence - Elmhurst IL
Larry D. Richardson - Roselle IL

Assignee:

UOP - Des Plaines IL

International Classification:

C10G 3510

US Classification:

208173

Abstract:

A controlled method of transporting catalyst between two zones while inhibiting communication between the atmospheres of the zones is disclosed. Communication between the zones is inhibited by controlling pressure differences. The two zones are separated by a means to lift catalyst, which results in a savings in construction costs. This invention is adaptable to a multitude of processes for the catalytic conversion of hydrocarbons in which deactivated catalyst particles are regenerated.

US Patent:

58582100, Jan 12, 1999

Filed:

May 7, 1997

Appl. No.:

8/852478

Inventors:

Larry D. Richardson - Lakewood IL

Assignee:

UOP LLC - Des Plaines IL

International Classification:

C10G 3510

US Classification:

208173

Abstract:

A controlled method of changing the transport rate of particles between a source zone and a destination zone is disclosed. Changes are made in a desired value of the pressure difference of the conduit between the two zones through which the particles are transported. The changes are of a magnitude that are determined by the batchwise transfer of particles into the source zone and are performed at a rate that is determined by the dynamics of the process, rather than by the frequency of the batchwise transfers, until the desired final value of the pressure difference is reached. The method minimizes fluctuations in the pressures of the two zones without over-sized vessels or additional equipment that would otherwise be needed to accommodate pressure changes. This results in a savings in construction costs. This invention is adaptable to a multitude of processes for the catalytic conversion of hydrocarbons in which deactivated catalyst particles are regenerated.

US Patent:

55001106, Mar 19, 1996

Filed:

May 6, 1994

Appl. No.:

8/239003

Inventors:

Paul A. Sechrist - Des Plaines IL
Roger R. Lawrence - Elmhurst IL
Frank T. Micklich - Joliet IL
Larry D. Richardson - Roselle IL
David M. Kazell - Libertyville IL

Assignee:

UOP - Des Plaines IL

International Classification:

C10G 3510
C10G 3524

US Classification:

208173

Abstract:

A controlled method of changing the transport rate of particles between two zones is disclosed. Changes are made in a computed value of the pressure difference of the conduit between the two zones through which the particles are transported. The changes are of a predetermined magnitude and are performed at predetermined time intervals, until the desired final value of the pressure difference is reached. The method minimizes fluctuations in the pressures of the two zones without over-sized vessels or additional equipment that would otherwise be needed to accommodate pressure changes. This results in a savings in construction costs. This invention is adaptable to a multitude of processes for the catalytic conversion of hydrocarbons in which deactivated catalyst particles are regenerated.