Gregory J Thompson

US Patent:

51145626, May 19, 1992

Filed:

Aug 3, 1990

Appl. No.:

7/562172

Inventors:

Edward C. Haun - Glendale Heights IL
Gregory J. Thompson - Waukegan IL
Jayant K. Gorawara - Mundelein IL
Dana K. Sullivan - Mt. Prospect IL

Assignee:

UOP - Des Plaines IL

International Classification:

C10G 6512

US Classification:

208 89

Abstract:

Middle distillate petroleum streams are hydrotreated to produce a low sulfur and low aromatic product in a process employing two reaction zones in series. The effluent of the first reaction zone is purged of hydrogen sulfide by hydrogen stripping and then reheated by indirect heat exchange. The second reaction zone employs a sulfur-sensitive noble metal hydrogenation catalyst. Operating pressure and space velocity increase and temperature decreases from the first to second reaction zones.

US Patent:

44395337, Mar 27, 1984

Filed:

Aug 30, 1982

Appl. No.:

6/412698

Inventors:

David A. Lomas - Arlington Heights IL
Gregory J. Thompson - Waukegan IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

B01J 2938
C10G 1118
F28D 1300
G06G 758

US Classification:

502 6

Abstract:

A process and associated apparatus for the cooling of hot fluidized solid particles. The particles flow from a first dense phase fluidized bed into the shell side of a vertically oriented shell and tube heat exchanger where cooling occurs via indirect heat exchange with a cooling medium circulating in the tubes. The extent of cooling is controlled by the varying of the heat transfer coefficient between the tubes and particles in the heat exchanger which are maintained as a second dense phase fluidized bed. The coefficient is varied by varying the quantity of fluidizing gas to the fluidized bed in the heat exchanger. The particles flow freely to and from the first and second dense phase fluidized beds through which the particles recirculate and are backmixed. The process has particular applicability to a combustive regeneration process and most particular applicability to the FCC process.

US Patent:

48593133, Aug 22, 1989

Filed:

Aug 15, 1986

Appl. No.:

6/896569

Inventors:

Robert A. Lengemann - Arlington Heights IL
Gregory J. Thompson - Waukegan IL
Anthony G. Vickers - Arlington Heights IL
Raymond W. Mott - Darien IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

C10G 1100
C10G 3500

US Classification:

208113

Abstract:

A method for operating a fluid catalytic cracking unit comprising a regeneration zone and a reaction zone with a relatively reduced temperature in the regeneration zone while processing a hydrocarbon feedstock having a 50 volume percent distillation temperature greater than about 500. degree. F. which method comprises contacting the feedstock in a reaction zone with a mixture of regenerated fluidizable cracking catalyst and fluidizable low coke make solid particles comprising a refractory inorganic oxide in a ratio of low coke make solid particles to cracking catalyst from about 1:100 to about 10:1, the low coke made solid particles having a surface area of less than about 5 m. sup. 2 /g and a coke making capability of less than about 0. 2 weight percent coke on the spent low coke make solid particles in the ASTM standard method for testing cracking catalyst by microactivity test (MAT); separating the resulting vaporized hydrocarbon products from the mixture of deactivated fluidizable cracking catalyst and fluidizable low coke made solid particles; recovering the resulting vaporized hydrocarbon products; passing the mixture of cracking catalyst and low coke made solid particles to the regeneration zone for regeneration by removal of coke; and passing the resulting regenerated mixture of cracking catalyst and low coke make solid particles from the regeneration zone to the reaction zone to contact the feedstock as described above whereby the regeneration zone temperature is maintained at a reduced temperature as compared to an equivalent operation without the use of the fluidizable low coke make solid particles while simultaneously not affecting the operation of the reaction zone.

US Patent:

44241925, Jan 3, 1984

Filed:

Jun 18, 1982

Appl. No.:

6/389790

Inventors:

David A. Lomas - Arlington Heights IL
Gregory J. Thompson - Waukegan IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

B01J 2120
B01J 2938
B01J 826
C10G 1118

US Classification:

422109

Abstract:

A catalyst regeneration process and apparatus for the oxidative removal of coke from a coke contaminated fluid catalyst. The process comprises a high temperature coke combustion zone, a catalyst disengagement zone and an external heat removal zone comprising a shell and tube heat exchanger. Catalyst is cooled by passing it through the shell side of the heat exchanger with a cooling medium through the tube side. A mixture of coke contaminated catalyst, oxygen containing gas, and cool regenerated catalyst from the heat removal zone are contacted in the high temperature combustion zone, the temperature of which is controlled by adjusting the rate at which fluidizing gas is passed to the bottom portion of the shell of the heat exchanger which varies the degree of turbulence of the fluidized bed in the shell side and thus the heat transfer coefficient at the outside surface of the tubes which in turn varies the quantity of heat transferred to the cooling medium in the tubes.

US Patent:

48270660, May 2, 1989

Filed:

May 23, 1988

Appl. No.:

7/197782

Inventors:

Raymond R. Herber - Medinah IL
Gregory J. Thompson - Waukegan IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

C07C 402
C07C 509
C07C 5327

US Classification:

585319

Abstract:

A process for the catalytic dehydrogenation of a dehydrogenatable C. sub. 2 -plus feed hydrocarbon which comprises the steps of: (a) passing a feed stream comprising the C. sub. 2 -plus feed hydrocarbon into an isothermal dehydrogenation zone and through at least one bed of dehydrogenation catalyst maintained at isothermal dehydrogenation conditions selected to convert at least about 50 weight percent of the dehydrogenatable C. sub. 2 -plus feed hydrocarbon and producing an isothermal dehydrogenation zone effluent stream comprising hydrogen, unconverted C. sub. 2 -plus feed hydrocarbon and C. sub. 2 -plus product hydrocarbon; (b) forming an oxidation catalyst bed feed stream by admixing an oxygen-containing stream with the isothermal dehydrogenation zone effluent stream; (c) passing the oxidation catalyst bed feed stream through a bed of hydrogen selective oxidation catalyst maintained at selective oxidation conditions and producing an oxidation zone effluent stream having a reduced concentration of hydrogen and an increased temperature; (d) passing the oxidation zone effluent stream into an adiabatic dehydrogenation zone and through at least one bed of dehydrogenation catalyst maintained at dehydrogenation conditions selected to convert additional unconverted C. sub. 2 -plus feed hydrocarbon and producing an adiabatic dehydrogenation zone effluent stream comprising hydrogen, unconverted C. sub. 2 -plus feed hydrocarbon and C. sub.

US Patent:

47743778, Sep 27, 1988

Filed:

Sep 11, 1987

Appl. No.:

7/095184

Inventors:

Paul T. Barger - Arlington Heights IL
Gregory J. Thompson - Waukegan IL
Raymond R. Herber - Medinah IL
Tamotsu Imai - Mt. Prospect IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

C07C 100
C07C 268
C07C 522

US Classification:

585323

Abstract:

An alkylation-transalkylation process for the production of a monoalkylated aromatic compound is disclosed which maximizes the production of desirable monoalkylaromatic compounds, while limiting transalkylation catalyst deactivation. The process entails the combination of an alkylation reaction zone, a first separation zone, a second separation zone, and a transalkylation reaction zone wherein the alkylation catalyst and transalkylation catalyst are dissimilar and where the alkylation catalyst is comprised of phosphoric acid material and the transalkylation catalyst is comprised of a crystalline aluminosilicate material. The transalkylation catalyst deactivation is reduced by transalkylating only dialkylated aromatic compounds.

US Patent:

51104440, May 5, 1992

Filed:

Aug 3, 1990

Appl. No.:

7/562365

Inventors:

Edward C. Haun - Glendale Heights IL
Gregory J. Thompson - Waukegan IL
Jayant K. Gorawara - Mundelein IL

Assignee:

UOP - Des Plaines IL

International Classification:

C10G 4500

US Classification:

208 89

Abstract:

Middle distillate petroleum streams are hydrotreated to produce a low sulfur and low aromatic product in a process employing three reaction zones in series. Hydrogen flows between the reaction zones countercurrent to the hydrocarbons. Hydrogen sulfide is removed from effluent of the first two reaction zones by hydrogen stripping. The second and third reaction zones employ a sulfur-sensitive noble metal hydrogenation catalyst. Operating pressure increases and temperature decreases from the first to third reaction zones.

US Patent:

43538126, Oct 12, 1982

Filed:

Jun 15, 1980

Appl. No.:

6/273296

Inventors:

David A. Lomas - Arlington Heights IL
Gregory J. Thompson - Waukegan IL

Assignee:

UOP Inc. - Des Plaines IL

International Classification:

B01J 2120
C10G 1118
F27B 1508
B01J 2938

US Classification:

252417

Abstract:

A catalyst regeneration process and apparatus for the oxidative removal of coke from a coke contaminated fluid catalyst. The process comprises a high temperature coke combustion zone, a catalyst disengagement zone and an external heat removal zone comprising a shell and tube heat exchanger. Catalyst is cooled by passing it through the shell side of the heat exchanger with a cooling medium through the tube side. A mixture of coke contaminated catalyst, oxygen containing gas, and cool regenerated catalyst from the heat removal zone are contacted in the high temperature combustion zone, the temperature of which is controlled by adjusting the rate at which fluidizing gas is passed to the bottom portion of the shell of the heat exchanger which varies the degree of turbulence of the fluidized bed in the shell side and thus the heat transfer coefficient at the outside surface of the tubes which in turn varies the quantity of heat transferred to the cooling medium in the tubes.