Janet K Clark

US Patent:

6555725, Apr 29, 2003

Filed:

Nov 6, 2001

Appl. No.:

09/992372

Inventors:

Robert Jay Wittenbrink - Kingwood TX
Charles John Mart - Baton Rouge LA
Janet Renee Clark - Baton Rouge LA
Jennifer Schaefer Feeley - Lebanon NJ

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C07C 513

US Classification:

585734, 585300, 585733

Abstract:

A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a hydrocarbon synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more downcomer reactors immersed in the slurry body in the synthesis reactor. A monolithic catalyst is preferably used for the hydroisomerization, and slurry circulation down through the downcomer reactors from the surrounding slurry body, is achieved at least in part by density-difference driven hydraulics created by removing gas bubbles from the slurry passed into the downcomers. Preferably, catalyst particles are also removed before the slurry contacts the catalyst. Hydroisomerization occurs while the synthesis reactor is producing hydrocarbons, without interfering with the hydrocarbon synthesis reaction.

US Patent:

6717024, Apr 6, 2004

Filed:

Nov 6, 2001

Appl. No.:

09/992141

Inventors:

Robert Jay Wittenbrink - Kingwood TX
Charles John Mart - Baton Rouge LA
Janet Renee Clark - Baton Rouge LA
Jennifer Schaefer Feeley - Lebanon NJ

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C07C 522

US Classification:

585734, 585899, 585310, 585315, 208950, 518700, 518728

Abstract:

A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more lift reactors immersed in the slurry body in the synthesis reactor. A monolithic catalyst is preferably used for the hydroisomerization, and slurry circulation up through the lift reactors from the surrounding slurry body, is achieved at least in part by the lift action of the hydroisomerization treat gas. Preferably, catalyst particles are also removed before the slurry contacts the catalyst. Hydroisomerization occurs while the synthesis reactor is producing hydrocarbons, without interfering with the synthesis reaction. A gas bubble reducing downcomer may be used to produce and feed the gas bubble reduced slurry into the lift reactor, thereby providing a hydraulic head assist in the slurry circulation up through and out of the lift reactor.

US Patent:

8051844, Nov 8, 2011

Filed:

Sep 3, 2008

Appl. No.:

12/203815

Inventors:

George Clark - Conroe TX, US
Janet S. Clark - Conroe TX, US

International Classification:

F02B 25/06

US Classification:

123572

Abstract:

Apparatus is provided for removing oil from crankcase gases flowing from an internal combustion engine. The apparatus includes filtration particles, contained within an outer case, that collect oil particles and allow drainage of the oil into an accumulator. An inner shell may be used as a water accumulator.

US Patent:

8272372, Sep 25, 2012

Filed:

Oct 11, 2011

Appl. No.:

13/270460

Inventors:

George Clark - Conroe TX, US
Janet S. Clark - Conroe TX, US

International Classification:

F02B 25/06

US Classification:

123572

Abstract:

Apparatus is provided for removing oil from crankcase gases flowing from an internal combustion engine. The apparatus includes filtration particles, contained within an outer case, that collect oil particles and allow drainage of the oil into an accumulator. The apparatus includes a separation chamber which initially causes the oil to separate from the crankcase gases.