Louis F Burns Deceased12064 Harmony Cir, Gulfport, MS 39503

6458857, Oct 1, 2002

Nov 20, 2001

09/996416

Robert Jay Wittenbrink - Kingwood TX
Louis Francis Burns - Baton Rouge LA
Gregg Johnston Howsmon - Baton Rouge LA
Geoffrey Rhys Say - Baton Rouge LA

ExxonMobil Research and Engineering Company - Annandale NJ

C07C 2700

518715, 518700, 518705, 518712

A hydrocarbon synthesis (HCS) process wherein a Fischer-Tropsch reactor is operated to maximize the selectivity to 371Â C. + boiling fraction while minimizing the production of less valuable products such as light gases (C -C ), naphtha and diesel fractions. Inventive modes of operation to offset the effects of catalyst deactivation and maximize selectivity to 371Â C. + boiling fraction are utilized including (a) reducing gas inlet velocity to maintain an optimal CO conversion level, (b) introducing additional active catalyst until a maximum loading is reached, and (c) increasing reactor temperature until productivity reaches a predetermined cut-off level.

6590002, Jul 8, 2003

Jul 13, 2001

09/905231

Robert Jay Wittenbrink - Kingwood TX
Louis Francis Burns - Baton Rouge LA
Gregg Johnston Howsmon - Baton Rouge LA
Geoffrey Rhys Say - Baton Rouge LA
Charles Harrison Mauldin - Baton Rouge LA

ExxonMobil Research and Engineering Company - Annandale NJ

C07C 2700

518715, 518700, 518709

A hydrocarbon wax product from a HCS slurry comprising liquid synthesis product and catalyst particles is purified by circulating the slurry from a synthesis zone with a first temperature through a treatment zone with a second temperature in which a hydrogen-containing treatment gas contacts the slurry. The gas treatment removes impurities from the hydrocarbon wax product and also removes catalyst de-activating species which may be present in the slurry. Purified wax product is separated and removed from the treated slurry via wax withdrawal means. This avoids or minimizes the need for further treating the wax product. Remaining treated slurry may be returned to the synthesis zone.

6846848, Jan 25, 2005

Aug 23, 2002

10/226752

Robert Jay Wittenbrink - Kingwood TX, US
Loren Leon Ansell - Baton Rouge LA, US
Daniel Francis Ryan - Baton Rouge LA, US
Louis Francis Burns - Baton Rouge LA, US

ExxonMobil Research and Engineering Company - Annandale NJ

C07C 2700

518700, 818709, 818715

A hydrocarbon wax product from a hydrocarbon synthesis slurry comprising liquid synthesis product and catalyst particles is purified by introducing a portion of hydrocarbon synthesis slurry from a hydrocarbon synthesis zone to a treatment zone in which a treatment gas contacts the hydrocarbon synthesis slurry. Hydrogen or a hydrogen-containing gas is useful as the treatment gas. The gas treatment removes impurities from the hydrocarbon wax portion of the hydrocarbon synthesis slurry. Purified wax product is separated and removed in situ via wax withdrawal means. This avoids or minimizes the need for further treating the wax product.

8298451, Oct 30, 2012

Sep 3, 2009

12/584312

S. Darden Sinclair - Beaumont TX, US
Martin A. Krevalis - Houston TX, US
Dominick N. Mazzone - Wenonah NJ, US
Jean-Luc Martin - Saint Paer, FR
Louis F. Burns - League City TX, US

ExxonMobil Research and Engineering Company - Annandale NJ

H01B 3/24
C10L 1/00
B01J 29/70

252570, 208 14, 208 46

This invention relates to reformer distillates as gassing additives for transformer oils. The reformer distillates have a 1-ring and 2-ring aromatics content of at least 98%, and are added such that the transformer oil contains less than 10 wt % of reformer distillate. The invention also relates to a method for preparing transformer oils containing reformer distillates and having excellent gassing tendency, oxidative stability, viscosity and volatility.

2011018, Jul 28, 2011

Dec 21, 2010

12/974517

Christine Nicole Elia - Bridgewater NJ, US
Timothy Lee Hilbert - Fairfax VA, US
Louis F. Burns - League City TX, US
Eric D. Joseck - Burke VA, US
Jeenok Theresa Kim - Fairfax VA, US
Sylvain S. Hantzer - Purcellville VA, US

ExxonMobil Research and Engineering Company - Annandale NJ

C10G 73/02

208 27

In a catalytic dewaxing process, a catalyst comprising from 40 to 80 wt % of ZSM-48 having a silica to alumina molar ratio of less than 200:1 and from 0.3 to 1.5 wt % of a metal or metal compound from Groups 8 to 10 of the Periodic Table of the Elements is provided in a reaction zone. The catalyst is periodically contacted in the reaction zone under dewaxing conditions with a first hydrocarbon feedstock having a wax content of less than 50 wt % and with a second hydrocarbon feedstock having a wax content of 50 wt % or more.

2020021, Jul 9, 2020

Aug 30, 2018

16/637892

- Annandale NJ, US
Paul Podsiadlo - Humble TX, US
Chuansheng Bai - Phillipsburg NJ, US
William W. Lonergan - Humble TX, US
Louis F. Burns - Spring TX, US
Stephen J. McCarthy - Center Valley PA, US
Nicholas S. Rollman - Hamburg PA, US

B01J 29/78
B01J 37/04
B01J 37/00
B01J 37/08
B01J 37/02
B01J 21/04
C10G 45/12

A method for making catalyst materials is disclosed in which active metal ingredients of the final catalyst are added to a mixture for extruding the catalyst material that includes a binder, one or more precursors of one or more base metals and/or one or more noble metals, and a crystal of a zeolite. The extruded catalyst material is then pre-calcined and ion-exchanged and then a final calcining step is applied. The catalyst materials made by such a method are also disclosed as is a method for treating a hydrocarbon stream using the catalysts.