1
Robert Jay Wittenbrink, Richard Frank Bauman, Daniel Francis Ryan: Biodegradable high performance hydrocarbon base oils. Exxon Research and Engineering Company, Jay Simon, Jonathan N Provoost, August 1, 2000: US06096940 (54 worldwide citation)

Discloses novel biodegradable high performance hydrocarbon base oils useful as lubricants in engine oil and industrial compositions, and process for their manufacture. A waxy, or paraffinic feed, particularly a Fischer-Tropsch wax, is reacted over a dual function catalyst to produce hydroisomerizati ...


2
Haven Scott Aldrich, Robert Jay Wittenbrink: Lubricant base oil having improved oxidative stability. Exxon Research and Engineering Company, Estelle C Bakun, December 28, 1999: US06008164 (36 worldwide citation)

The instant invention is directed to a method for producing a lubricating base stock having a preselected oxidative stability comprising the steps of: (a) separating, into a plurality of fractions based on molecular shape, a hydroisomerized hydrocarbon wax, (b) collecting the fractions of step (a) w ...


3
Robert Jay Wittenbrink, Richard Frank Bauman, Paul Joseph Berlowitz, Bruce Randall Cook: Synthetic diesel fuel and process for its production. Exxon Research and Engineering Company, Jay Simon, Jonathan N Provoost, Linda M Scuorzo, October 2, 2001: US06296757 (29 worldwide citation)

Diesel fuels or blending stocks having excellent lubricity, oxidative stability and high cetane number are produced from non-shifting Fischer-Tropsch processes by separating the Fischer-Tropsch product into a lighter and heavier fractions, e.g., at about 700° F., subjecting the 700° F.+fraction ...


4
Robert Jay Wittenbrink, Steven Earl Silverberg, Daniel Francis Ryan: High purity paraffinic solvent compositions. Exxon Research and Engineering Co, Jay Simon, May 25, 1999: US05906727 (24 worldwide citation)

Discloses high purity solvent compositions constituted of n-paraffins and isoparaffins, with the isoparaffins containing predominantly methyl branches, and having an isoparaffin:n-paraffin ratio sufficient to provide superior low temperature properties and low viscosities. The solvent compositions a ...


5
Paul Joseph Berlowitz, Daniel Francis Ryan, Robert Jay Wittenbrink, Jack Wayne Johnson, John Richard Bateman: Low sulfur, low emission blends of fischer-tropsch and conventional diesel fuels. ExxonMobil Research and Engineering Company, Mark D Martin, December 16, 2003: US06663767 (22 worldwide citation)

A blended fuel, useful as a diesel fuel, wherein the fuel blend contains an undercut conventional diesel fuel, blended with a Fischer-Tropsch derived diesel fuel, such that the blend demonstrates better than expected emissions and a reduced sulfur content. In particular, the blend is an asymmetric d ...


6
Robert Jay Wittenbrink, Richard Frank Bauman, Daniel Francis Ryan: Biodegradable high performance hydrocarbon base oils. ExxonMobile Research and Engineering Company, Norby L Foss, Mark D Marin, January 14, 2003: US06506297 (21 worldwide citation)

Discloses novel biodegradable high performance hydrocarbon base oils useful as lubricants in engine oil and industrial compositions, and process for their manufacture. A waxy, or paraffinic feed, particularly a Fischer-Tropsch wax, is reacted over a dual function catalyst to produce hydroisomerizati ...


7
Robert Jay Wittenbrink, Richard Frank Bauman, Daniel Francis Ryan, Paul Joseph Berlowitz: Synthetic diesel fuel with reduced particulate matter emissions. Exxon Research and Engineering Company, Jay Simon, September 15, 1998: US05807413 (20 worldwide citation)

A diesel engine fuel is produced from Fischer-Tropsch wax by separating a light density fraction, e.g., C.sub.5 -C.sub.15, preferably C.sub.7 -C.sub.14 cut having at least 80+ wt % n-paraffins, no more than 5000 ppm alcohols as oxygen, less than 10 wt % olefins, twice aromatics and very low sulfur a ...


8
Robert Jay Wittenbrink, Richard Frank Bauman, Paul Joseph Berlowitz, Bruce Randall Cook: Synthetic diesel fuel and process for its production. Exxon Research and Engineering Company, August 14, 2001: US06274029 (18 worldwide citation)

Diesel fuels or blending stocks having excellent lubricity, oxidative stability and high cetane number are produced from non-shifting Fischer-Tropsch processes by separating the Fischer-Tropsch product into a lighter and heavier fractions, e.g., at about 700° F., subjecting the 700° F.+fraction ...


9
Robert Jay Wittenbrink, Steven Earl Silverberg, Daniel Francis Ryan: High purity paraffinic solvent compositions, and process for their manufacture. Exxon Research and Engineering Company, Jay Simon, November 10, 1998: US05833839 (18 worldwide citation)

Discloses high purity solvent compositions constituted of n-paraffins and isoparaffins, with the isoparaffins containing predominantly methyl branches, and having an isoparaffin:n-paraffin ratio sufficient to provide superior low temperature properties and low viscosities. The solvent compositions a ...


10
Robert Jay Wittenbrink, Daniel Francis Ryan, Steven Earl Silverberg: Hydroisomerization of a predominantly N-paraffin feed to produce high purity solvent compositions. Exxon Research and Engineering Company, Jay Simon, February 2, 1999: US05866748 (16 worldwide citation)

A process for the hydroisomerization of a predominantly C.sub.8 -C.sub.20 n-paraffinic feed to produce a high purity C.sub.8 -C.sub.20 paraffinic solvent composition having superior low temperature properties, and low viscosities. The feed is contacted, with hydrogen, over a dual functional catalyst ...