Richard J Dougherty

US Patent:

8647500, Feb 11, 2014

Filed:

Jun 24, 2011

Appl. No.:

13/168287

Inventors:

Richard C. Dougherty - Moorestown NJ, US
Michael A. Hayes - Washington NJ, US
Benjamin S. Umansky - Fairfax VA, US
William E. Lewis - Baton Rouge LA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C10G 45/00

US Classification:

208210, 208 89, 585240

Abstract:

A mineral feed can be hydrotreated in a trickle-bed reactor or other stage in a continuous gas-phase environment. The effluent from the hydrotreatment stage can be separated to remove gas-phase impurities. The remaining liquid effluent from the hydrotreating stage can then be introduced, in total or in part, into a second stage/reactor. A feed of biocomponent origin can also be introduced into the second stage/reactor. The second stage/reactor can be operated to perform deoxygenation of the mixture of biocomponent feed and hydrotreated liquid effluent in a continuous liquid phase environment.

US Patent:

20040121933, Jun 24, 2004

Filed:

Dec 5, 2003

Appl. No.:

10/728502

Inventors:

Richard Dougherty - Moorestown NJ, US

International Classification:

C11D003/37

US Classification:

510/475000

Abstract:

The present invention relates to a process for preparing polymeric additives from dry polymer granules having increased bulk density, larger mean particle size with a small distribution of fines and lower hygroscopicity.

US Patent:

20040121934, Jun 24, 2004

Filed:

Dec 5, 2003

Appl. No.:

10/728524

Inventors:

Richard Dougherty - Moorestown NJ, US

International Classification:

C11D003/37

US Classification:

510/475000

Abstract:

The present invention relates to a process for preparing polymeric detergent additives from dry neutralized polymer granules having increased bulk density, larger mean particle size with a small distribution of fines and lower hygroscopicity.

US Patent:

20120000818, Jan 5, 2012

Filed:

Jun 29, 2011

Appl. No.:

13/171916

Inventors:

Richard Charles Dougherty - Moorestown NJ, US
Michel Daage - Hellertown PA, US

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ

International Classification:

C10G 69/02

US Classification:

208 97

Abstract:

A process for the preparation of Group II and Group III lube oil base stocks wherein liquid-continuous aromatics saturation is used to treat lube hydrocrackate. The treated hydrocrackate is then be sent to dewaxing unit and then optionally to a hydrotreating step.

US Patent:

20120000829, Jan 5, 2012

Filed:

Jun 29, 2011

Appl. No.:

13/172196

Inventors:

Richard Charles Dougherty - Moorestown NJ, US
Michel Daage - Hellertown PA, US

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ

International Classification:

C10G 45/00

US Classification:

208264, 208289, 208291

Abstract:

The preparation of Group II and Group III lube base oils wherein liquid-continuous hydrotreating is used to treat a lube oil raffinate. The hydrotreated lube oil raffinate is then sent to a dewaxing stage that can be either a solvent or catalytic dewaxing stage.

US Patent:

20120004477, Jan 5, 2012

Filed:

Jun 24, 2011

Appl. No.:

13/168196

Inventors:

Richard C. Dougherty - Moorestown NJ, US
Michael A. Hayes - Washington NJ, US
Benjamin S. Umansky - Fairfax VA, US
William E. Lewis - Baton Rouge LA, US

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ

International Classification:

C07C 1/20
C10G 45/00

US Classification:

585240, 208 89, 585469

Abstract:

Hydrocarbon feeds can be hydrotreated in a continuous gas-phase environment and then dewaxed in a liquid-continuous reactor. The liquid-continuous reactor can advantageously be operated in a manner that avoids the need for a hydrogen recycle loop. A contaminant gas can be added to the hydrogen input for the liquid-continuous reactor to modify the hydrogen consumption in the reactor.

US Patent:

20120248008, Oct 4, 2012

Filed:

Mar 28, 2012

Appl. No.:

13/432098

Inventors:

Richard Dougherty - Moorestown NJ, US
William J. Novak - Bedminster NJ, US
Stuart S. Shih - Gainesville VA, US
Stephen J. McCarthy - Center Valley PA, US
Michel Daage - Hellertown PA, US

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ

International Classification:

C10G 65/10
C10G 69/10

US Classification:

208 59, 208 60

Abstract:

This invention relates to a process involving hydrocracking and dewaxing of a feedstream in which a converted fraction can correspond to a majority of the product from the reaction system, while an unconverted fraction can exhibit improved properties. In this hydrocracking process, it can be advantageous for the yield of unconverted fraction for gasoline fuel application to be controlled to maintain desirable cold flow properties for the unconverted fraction. Catalysts and conditions can be chosen to assist in attaining, or to optimize, desirable product yields and/or properties.

US Patent:

48765163, Oct 24, 1989

Filed:

Jan 27, 1989

Appl. No.:

7/302525

Inventors:

Richard M. Dougherty - Scottsdale AZ

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H03F 360

US Classification:

330 54

Abstract:

A distributed amplifier which increases gain by increasing transconductance comprises a plurality of amplifying elements. Each element includes a darlington amplifier connected in cascade with a FET (field effect transistor) amplifier. The darlington amplifier includes an RC (resistance/capacitance) feedback loop from the drain to the gate. Each of the amplifying elements are coupled in parallel between an input transmission line and an output transmission line. The output transmission line operates as a recombining network as the input signals pass through the amplifying elements. To further increase gain and power output, a time delay line is coupled to each end of the output transmission line. The time delay line simulates the terminating elements normally associated with distributed amplifiers, and collects unguided signals from the output transmission line to recombine them with guided signals at the output. These unguided signals are terminated in conventional distributed amplifiers resulting in approximately a 3 dB (decibal) loss in gain.