Stephen J Mccarthy

US Patent:

7553790, Jun 30, 2009

Filed:

Oct 25, 2005

Appl. No.:

11/258440

Inventors:

Jean W. Beeckman - Columbia MD, US
Glenn R. Sweeten - East Stroudsburg PA, US
Daria N. Lissy - Glen Mills PA, US
David L. Stern - Baton Rouge LA, US
Stephen J. McCarthy - Center Valley PA, US
Dominick N. Mazzone - Wenonah NJ, US
Christine N. Elia - Bridgewater NJ, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

B01J 29/06

US Classification:

502 60, 502 64, 502 85

Abstract:

The present invention describes a method to increase the activity of a catalyst by first performing an ion exchange step with a potassium ion, followed by performing an ion-exchange step with an ammonium ion. Specifically, the present invention describes a method to increase the acidity of a zeolite by incorporating a potassium salt ion-exchange prior to an ammonium salt ion-exchange step. Even more specifically, the present invention is drawn to a method of increasing the activity of a zeolite by employing more than one potassium ion exchanges followed by at least one ammonium ion exchange. The present invention also describes a method to reduce the amount of sodium normally found in commercially produced zeolite by employing any of these methods. The present invention is also drawn to the catalysts produced by any of these methods.

US Patent:

20100093522, Apr 15, 2010

Filed:

Oct 5, 2009

Appl. No.:

12/587288

Inventors:

Jean W. Beeckman - Columbia MD, US
Stephen J. McCarthy - Center Valley PA, US
Chuansheng Bai - Phillipsburg NJ, US
William G. Borghard - Haddon Heights NJ, US
Sanket K. Desai - Glen Gardner NJ, US
Hyung S. Woo - Easton PA, US

International Classification:

B01J 21/18
B01J 27/049
B01J 23/24

US Classification:

502185, 502221, 502313

Abstract:

Bulk catalysts that include a Group VI metal, a Group VIII metal, and at least 10-60% of an organic compound based component are formed. The bulk catalysts have increased stability through the use of a stabilizer in the organic compound based component, the use of an improved gas phase sulfidation, or a combination thereof. The bulk catalysts are suitable for hydroprocessing of hydrocarbon feeds.

US Patent:

20130068663, Mar 21, 2013

Filed:

Sep 19, 2011

Appl. No.:

13/235858

Inventors:

Jean W. BEECKMAN - Columbia MD, US
Stephen J. McCARTHY - Center Valley PA, US
Jane C. CHENG - Bridgewater NJ, US

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ

International Classification:

C10G 35/06
B01J 19/00
B01J 23/38

US Classification:

208134, 502 79, 502 75, 422129, 502 64

Abstract:

Process for the preparation of a catalyst suitable for use in a naphtha reforming process, the process including providing a Y zeolite with an initial SiO:AlOmolar ratio of at least 150, introducing the Y zeolite to a binder to form an intermediate composition, extruding the intermediate composition, reducing the alpha acidity of the extruded composition to provide a low acid composition, and introducing a noble metal to the low acid composition. Processes and systems of converting naphtha to a higher-octane hydrocarbon supply using catalysts, as prepared herein, are also disclosed.

US Patent:

20150175911, Jun 25, 2015

Filed:

Nov 18, 2014

Appl. No.:

14/546565

Inventors:

Stuart S. Shih - Gainesville VA, US
Gary P. Schleicher - Milford NJ, US
Michael B. Carroll - Center Valley PA, US
Timothy L. Hilbert - Middleburg VA, US
Stephen J. McCarthy - Center Valley PA, US
William J. Novak - Bedminster NJ, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C10G 69/02
C10M 103/06

Abstract:

Methods are provided for processing a gas oil boiling range feedstock, such as a vacuum gas oil, in a single reaction stage and/or without performing intermediate separations. The methods are suitable for forming lubricants and distillate fuels while reducing or minimizing the production of lower boiling products such as naphtha and light ends. The methods can provide desirable yields of distillate fuels and lubricant base oils without requiring separate catalyst beds or stages for dewaxing and hydrocracking. The methods are based in part on use of a dewaxing catalyst that is tolerant of sour processing environments while still providing desirable levels of activity for both feed conversion and feed isomerization.

US Patent:

20150122701, May 7, 2015

Filed:

Oct 6, 2014

Appl. No.:

14/506790

Inventors:

Stuart S. Shih - Gainesville VA, US
Xiaochun Xu - Annandale NJ, US
William J. Novak - Bedminster NJ, US
Carlos N. Lopez - Amissville VA, US
Timothy Lee Hilbert - Fairfax VA, US
Stephen John McCarthy - Center Valley PA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C10G 67/02

US Classification:

208 57, 208110

Abstract:

Methods are provided for dewaxing a distillate fuel boiling range feed to improve one or more cold flow properties of the distillate fuel feed, such as cloud point, where the distillate fuel feed is fractionated to produce both a jet fuel product and an arctic diesel fuel product. The decrease of cloud point is achieved by using a feedstock having a concentration of nitrogen of less than about 50 wppm and a concentration of sulfur of less than about 15 wppm. Further, the dewaxing catalyst may have a reduced content of hydrogenation metals, such as a content of Pt or Pd of from about 0.05 wt % to about 0.35 wt %. A distillate fuel feed can be dewaxed to achieve a desired cloud point differential using a reduced metals content dewaxing catalyst under the same or similar conditions to those required for a dewaxing catalyst with higher metals content.