Patents Represented by Attorney, Agent or Law Firm Jonathan N. Provoost
-
Patent number: 6165949Abstract: A premium synthetic lubricant having antiwear properties comprises a synthetic isoparaffinic hydrocarbon base stock and an effective amount of at least one antiwear additive. The antiwear additive is preferably at least one of a metal phosphate, a metal dialkyldithiophosphate, a metal dithiophosphate a metal thiocarbamate, a metal dithiocarbamate, an ethoxylated amine dialkyldithiophosphate and an ethoxylated amine dithiobenzoate. Metal dialkyldithiophosphates are preferred, particularly zincdialkyldithiophosphate (ZDDP). The base stock is derived from a waxy, Fischer-Tropsch synthesized hydrocarbon feed fraction comprising hydrocarbons having an initial boiling point in the range of about 650-750.degree. F., by a process which comprises hydroisomerizing the feed and dewaxing the isomerate. The lubricant may also contain hydrocarbonaceous and synthetic base stock material in admxture with the Fischer-Tropsch derived base stock.Type: GrantFiled: September 4, 1998Date of Patent: December 26, 2000Assignee: Exxon Research and Engineering CompanyInventors: Paul J. Berlowitz, Jacob J. Habeeb, Robert J. Wittenbrink
-
Patent number: 6162373Abstract: HCN can be removed from HCN containing synthesis gas streams useful as Fischer-Tropsch feed by contacting the feed with a cobalt containing catalyst at conditions that do not promote or catalyze the Fischer-Tropsch process.Type: GrantFiled: October 3, 1995Date of Patent: December 19, 2000Assignee: Exxon Research and Engineering CompanyInventor: Russell John Koveal, Jr.
-
Patent number: 6147126Abstract: A gas conversion process including catalytic hydrocarbon synthesis from a synthesis gas comprising a mixture of H.sub.2 and CO, produces hydrogen from the synthesis gas and upgrades synthesized hydrocarbons by one or more hydroconversion operations which utilize this hydrogen. The hydroconversion also produces a hydrogen rich tail gas which is used in the process for at least one of (i) hydrocarbon synthesis catalyst rejuvenation, (ii) the hydrocarbon synthesis, and (iii) hydrogen production. In one embodiment the tail gas is used to hydrodesulfurize sulfur-containing hydrocarbon liquids recovered from the natural gas used to form the synthesis gas. The hydrogen production is accomplished by physical separation, such as PSA, with or without chemical means such as a water gas shift reaction.Type: GrantFiled: February 10, 1998Date of Patent: November 14, 2000Assignee: Exxon Research and Engineering CompanyInventors: Charles W. DeGeorge, Robert J. Wittenbrink, Thomas M. Stark
-
Patent number: 6136408Abstract: Oriented strand board is post-fabrication treated with a polymeric coating which includes isocyanate constituents to produce a construction material which is smooth, has high gloss, and which is resistant to water, vapor, and chemical penetration. The isocyanate constituents are most preferably MDI or PMDI, and may be present in a coating composition alone or in combination with other binder materials such as PEEG or other polyols. Prior to application of the coating composition, the surface of the oriented strand board is pretreated using heat and pressure to compress and densify wood at the surface, and to smooth out minor surface irregularities. The coating composition is then applied to the wood surface, and is cured to form a polymeric coating which bonds to the wood material.Type: GrantFiled: November 25, 1997Date of Patent: October 24, 2000Assignee: J. M. Huber CorporationInventors: Scott H. Radcliffe, Thomas L. Lee, Robert D. Palardy
-
Patent number: 6096690Abstract: Discloses environmentally friendly, low temperature base oils and drilling fluids, or drilling mud compositions useful in the production of oil and gas. The drilling fluid is constituted of one or more of weighting agents, emulsifiers, wetting agents, viscosifiers, fluid loss control agents, proppants, and other particulates such as used in a gravel pack, emulsified with a paraffinic solvent composition which forms a continuous oil phase, or water-in-oil invert phase. The solvent composition is constituted of a mixture of C.sub.10- C.sub.24 n-paraffins and isoparaffins having an isoparaffin:n-paraffin molar ratio ranging from about 0.Type: GrantFiled: May 22, 1998Date of Patent: August 1, 2000Assignee: Exxon Research and Engineering Co.Inventors: Robert Jay Wittenbrink, Charles John Mart, Daniel Francis Ryan, Bruce Randall Cook
-
Patent number: 6096940Abstract: 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 hydroisomerization and hydrocracking reactions, at 700.degree. F.+ conversion levels ranging from about 20 to 50 wt. %, preferably about 25-40 wt. %, sufficient to produce a crude fraction, e.g., a C.sub.5 -1050.degree. F.+ crude fraction, containing 700.degree. F.+ isoparaffins having from about 6.0 to about 7.5 methyl branches per 100 carbon atoms in the molecule. The methyl paraffins containing crude fraction is topped via atmospheric distillation to produce a bottoms fraction having an initial boiling point between about 650.degree. F. and 750.degree. F. which is then solvent dewaxed, and the dewaxed oil is then fractionated under high vacuum to produce biodegradable high performance hydrocarbon base oils.Type: GrantFiled: July 22, 1998Date of Patent: August 1, 2000Assignee: Exxon Research and Engineering CompanyInventors: Robert Jay Wittenbrink, Richard Frank Bauman, Daniel Francis Ryan
-
Patent number: 6090742Abstract: A process for the preparation of a catalyst which is highly active for the synthesis of hydrocarbons from mixtures of hydrogen and carbon monoxide. A silica or silica-containing support is treated with a solution containing both an Iron Group metal, or metals, and nitrous acid, nitric acid, or a nitro-containing organo, or nitro-containing hydrocarbyl compound, or compounds, sufficient to hydroxylate the surface thereof and increase the number of hydroxyl groups on the surface of the support such that the metal component will be highly dispersed, this increasing the activity of the catalyst in a hydrocarbon synthesis reaction as contrasted with that of a catalyst of similar composition, similarly prepared except that the support component of the catalyst was not contacted and simultaneously treated with both the Iron Group metal and the acid.Type: GrantFiled: April 22, 1997Date of Patent: July 18, 2000Assignee: Exxon Research and Engineering CompanyInventor: Claude C. Culross
-
Patent number: 6080301Abstract: A premium synthetic lubricating oil base stock having a high VI and low pour point is made by hydroisomerizing a Fischer-Tropsch synthesized waxy, paraffinic feed wax and then dewaxing the hydroisomerate to form a 650-750.degree. F.+ dewaxate. The waxy feed has an initial boiling point in the range of about 650-750.degree. F., from which it continuously boils up to at least 1050.degree. F. and has a T.sub.90 -T.sub.10 temperature difference of at least 350.degree. F. The feed is preferably hydroisomerized without any pretreatment, other than optional fractionation. The 650-750.degree. F.+ dewaxate is fractionated into two or more base stocks of different viscosity.Type: GrantFiled: September 4, 1998Date of Patent: June 27, 2000Assignee: ExxonMobil Research and Engineering CompanyInventors: Paul J. Berlowitz, Jacob J. Habeeb, Robert J. Wittenbrink
-
Patent number: 6063349Abstract: The HCN concentration of HCN containing synthesis gas streams is reduced by treatment with a Group IVA metal oxide and optionally containing a Group IIB, Group VA, or Group VIA metal or metals, at reaction conditions preferably suppressing Fischer-Tropsch activity.Type: GrantFiled: September 19, 1997Date of Patent: May 16, 2000Assignee: Exxon Research and Engineering CompanyInventors: Russell J. Koveal, Jr., Keith E. Corkern
-
Patent number: 6043288Abstract: A gas conversion process in which both hydrocarbons and hydrogen are produced from a synthesis gas feed which comprises a mixture of H.sub.2 and CO, uses hydrogen from a portion of the feed for one or more of (i) hydrocarbon synthesis catalyst rejuvenation and (ii) hydroconversion upgrading of at least a portion of the synthesized hydrocarbons. Hydrogen is produced from a slipstream of the synthesis gas fed into the hydrocarbon synthesis reactor by one or more of (i) physical separation means such as pressure swing adsorption and (ii) chemical means such as a water gas shift reactor. If a shift reactor is used due to insufficient capacity of the synthesis gas generator, physical separation means such as pressure swing adsorption will still be used to separate a pure stream of hydrogen from the shift reactor gas effluent.Type: GrantFiled: February 13, 1998Date of Patent: March 28, 2000Assignee: Exxon Research and Engineering Co.Inventors: Charles W. DeGeorge, Robert D. Denton
-
Patent number: 5968465Abstract: Hydrogen cyanide is removed from an HCN containing gas, e.g., a gas containing CO+H.sub.2, by contact with a metal oxide catalyst comprised of the oxides of molybdenum, titanium, and aluminum in the presence of water vapor, and subsequently water washing the resulting gas.Type: GrantFiled: September 19, 1997Date of Patent: October 19, 1999Assignee: Exxon Research and Engineering Co.Inventors: Russell J. Koveal, Kenneth L. Riley, Keith E. Corkern