Robert A Franklin

US Patent:

7014821, Mar 21, 2006

Filed:

Sep 16, 2002

Appl. No.:

10/663322

Inventors:

John D. Hottovy - Bartlesville OK, US
Dale A. Zellers - Bartlesville OK, US
Robert K. Franklin - Houston TX, US

Assignee:

Chevron Phillips Chemical Company, LP - The Woodlands TX

International Classification:

C08F 2/01
B01J 8/08
B01J 8/10

US Classification:

422135, 422131, 422132, 526 64

Abstract:

An olefin polymerization process and apparatus wherein a fluid slurry comprising monomer, diluent and catalyst is circulated in a continuous loop reactor by two or more pumps. The process and apparatus allow operating the reaction at significantly higher solids content in the circulating fluid slurry. In a preferred embodiment, the fluid slurry is circulated by two impellers arranged so that the downstream impeller benefits from the rotational energy imparted by the upstream impeller. An olefin polymerization process operating at higher reactor solids by virtue of more aggressive circulation has improved efficiencies, particularly in larger-volume reactors.

US Patent:

7033545, Apr 25, 2006

Filed:

Sep 20, 2002

Appl. No.:

10/251662

Inventors:

Scott E. Kufeld - Houston TX, US
Thomas A. Reid - Deer Park TX, US
John H. Tait - Stafford TX, US
David H. Burns - Houston TX, US
Donald W. Verser - Houston TX, US
Harvey D. Hensley - Bartlesville OK, US
David J. Przelomski - Coopersburg PA, US
Teddy H. Cymbaluk - Seabrook TX, US
Robert K. Franklin - Houston TX, US
Ethelwoldo P. Perez - Sugar Land TX, US
John D. Hottovy - Bartlesville OK, US

Assignee:

Chevon Phillips Chemical Company, LP - The Woodlands TX

International Classification:

C08F 2/01
B01J 8/08
B01J 8/10

US Classification:

422135, 422131, 422132, 526 64

Abstract:

A polymerization loop reactor including a loop reaction zone, a continuous takeoff, and a fluid slurry disposed in the reaction zone. A generally cylindrical wall defines the loop reaction zone. The length of the loop reaction zone and the nominal outside diameter of the generally cylindrical wall define a length/diameter ratio greater than 250. The reactor can be charged with a fluid slurry including an olefin monomer reactant, solid olefin polymer particles, and a liquid diluent. The concentration of the solid olefin polymer particles in the slurry can be greater than 40 weight percent based on the weight of polymer particles and the weight of liquid diluent. Also disclosed is a polymerization process carried out by polymerizing, in the loop reaction zone of a reactor as defined above, at least one olefin monomer in a liquid diluent to produce a fluid slurry as defined above.

US Patent:

7736597, Jun 15, 2010

Filed:

Mar 20, 2006

Appl. No.:

11/384629

Inventors:

John D. Hottovy - Kingwood TX, US
Dale A. Zellers - Bartlesville OK, US
Robert K. Franklin - Houston TX, US
Donald Paul Russell - Kingston NH, US

Assignee:

Chevron Phillips Chemical Company LP - The Woodlands TX

International Classification:

B01J 8/00
C08F 2/01

US Classification:

422132, 422135, 422228, 526 64

Abstract:

An olefin polymerization process and apparatus wherein a fluid slurry comprising monomer, diluent and catalyst is circulated in a continuous loop reactor by two or more pumps. The process and apparatus allow operating the reaction at significantly higher solids content in the circulating fluid slurry. In a preferred embodiment, the fluid slurry is circulated by two impellers arranged so that the downstream impeller benefits from the rotational energy imparted by the upstream impeller. An olefin polymerization process operating at higher reactor solids by virtue of more aggressive circulation has improved efficiencies, particularly in larger-volume reactors.

US Patent:

8354063, Jan 15, 2013

Filed:

Apr 30, 2010

Appl. No.:

12/771383

Inventors:

John D. Hottovy - Kingwood TX, US
Robert K. Franklin - Houston TX, US
Donald Paul Russell - Kingston NH, US
Penny A. Zellers - Bartlesville OK, US

Assignee:

Chevron Phillips Chemical Company LP - The Woodlands TX
Lawrence Pump Inc. - Lawrence MA

International Classification:

C08F 2/01
B01J 8/08

US Classification:

422131, 422132, 422135, 526 64

Abstract:

An olefin polymerization process and apparatus wherein a fluid slurry comprising monomer, diluent and catalyst is circulated in a continuous loop reactor by two or more pumps. The process and apparatus allow operating the reaction at significantly higher solids content in the circulating fluid slurry. In a preferred embodiment, the fluid slurry is circulated by two impellers arranged so that the downstream impeller benefits from the rotational energy imparted by the upstream impeller. An olefin polymerization process operating at higher reactor solids by virtue of more aggressive circulation has improved efficiencies, particularly in larger-volume reactors.

US Patent:

20020187081, Dec 12, 2002

Filed:

Jun 20, 2002

Appl. No.:

10/176201

Inventors:

John Hottovy - Bartlesville OK, US
Harvey Hensley - Bartlesville OK, US
David Przelomski - Houston TX, US
Teddy Cymbaluk - Pasadena TX, US
Robert Franklin - Houston TX, US
Ethelwoldo Perez - Sugar Land TX, US

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

B32B005/02
C08K003/00

US Classification:

422/132000, 523/332000

Abstract:

An olefin polymerization process wherein monomer, diluent and catalyst are circulated in a continuous loop reactor and product slurry is recovered by means of a continuous product take off. The continuous product allows operating the reaction at significantly higher solids content in the circulating slurry. The concentration of ethylene in the circulating slurry is at least 3.67 weight percent and the average concentration of solid olefin polymer particles is greater than 40 weight percent.

US Patent:

20030012705, Jan 16, 2003

Filed:

Jun 20, 2002

Appl. No.:

10/177624

Inventors:

John Hottovy - Bartlesville OK, US
Harvey Hensley - Bartlesville OK, US
David Przelomski - Houston TX, US
Teddy Cymbaluk - Pasadena TX, US
Robert Franklin - Houston TX, US
Ethelwoldo Perez - Sugar Land TX, US

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

B32B027/04

US Classification:

422/132000, 526/064000, 526/104000, 526/348000

Abstract:

An olefin polymerization process wherein monomer, at least one olefin comonomer different from the olefin monomer, diluent and catalyst are circulated in a continuous loop reactor and product slurry is recovered by means of a continuous product take off. The continuous product allows operating the reaction at significantly higher solids content in the circulating slurry. The polymerization process operates at a space-time yield of at least 2.18 lb/hr-gal.

US Patent:

20030023009, Jan 30, 2003

Filed:

Jun 20, 2002

Appl. No.:

10/176247

Inventors:

Robert Franklin - Houston TX, US
John Hottovy - Bartlesville OK, US
Harvey Hensley - Bartlesville OK, US
David Przelomski - Houston TX, US
Teddy Cymbaluk - Pasadena TX, US
Ethelwoldo Perez - Sugar Land TX, US

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C08F002/00
C08G085/00

US Classification:

526/064000

Abstract:

An olefin polymerization process wherein monomer, at least one olefin comonomer different from the olefin monomer, diluent and catalyst are circulated in a continuous loop reactor and product slurry is recovered by means of a continuous product take off. The continuous product allows operating the reaction at significantly higher solids content in the circulating slurry.

US Patent:

20030023010, Jan 30, 2003

Filed:

Jun 20, 2002

Appl. No.:

10/176204

Inventors:

John Hottovy - Bartlesville OK, US
Harvey Hensley - Bartlesville OK, US
David Przelomski - Houston TX, US
Teddy Cymbaluk - Pasadena TX, US
Robert Franklin - Houston TX, US
Ethelwoldo Perez - Sugar Land TX, US

Assignee:

Phillips Petroleum Company - Bartlesville OK

International Classification:

C08F002/00

US Classification:

526/072000

Abstract:

An olefin polymerization process wherein monomer, diluent and catalyst are circulated in a continuous loop reactor and product slurry is recovered by means of a continuous product take off. The continuous product allows operating the reaction at significantly higher solids content in the circulating slurry. The concentration of solid olefin polymer particles in the slurry in the reaction zone may be maintained at a value of 45 weight percent or higher, based on the weight of polymer particles and the weight of the liquid diluent.

Address:

25139 Butterwick Dr, Spring, TX 77389

VIN:

1GCHK23657F526656

Make:

CHEVROLET

Model:

SILVERADO 2500HD

Year:

2007