Patents by Inventor Cornelius Hendrick Brons
Cornelius Hendrick Brons has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8183314Abstract: Provided are oil-in-water and water-in-oil emulsion compositions including from 0.01 to 5 wt % of a halogenated elastomer emulsifier, and optionally from to 0.5 wt % of a polyalkylene amine co-emulsifier. The emulsion compositions disclosed herein provide for increased interfacial elasticity and decreased interfacial tension at the oil-water interface to increase resistance to coalescence of dispersed water droplets of a water-in-oil emulsion or oil droplets of an oil-in-water emulsion. The emulsion compositions disclosed herein are suitable for lubricant applications due to their resistance to shear thinning.Type: GrantFiled: June 26, 2009Date of Patent: May 22, 2012Assignee: Exxonmobil Research and Engineering CompanyInventors: Ramesh Varadaraj, Cornelius Hendrick Brons, David John Lohse
-
Publication number: 20100004382Abstract: Provided are oil-in-water and water-in-oil emulsion compositions including from 0.01 to 5 wt % of a halogenated elastomer emulsifier, and optionally from to 0.5 wt % of a polyalkylene amine co-emulsifier. The emulsion compositions disclosed herein provide for increased interfacial elasticity and decreased interfacial tension at the oil-water interface to increase resistance to coalescence of dispersed water droplets of a water-in-oil emulsion or oil droplets of an oil-in-water emulsion. The emulsion compositions disclosed herein are suitable for lubricant applications due to their resistance to shear thinning.Type: ApplicationFiled: June 26, 2009Publication date: January 7, 2010Inventors: Ramesh Varadaraj, Cornelius Hendrick Brons, David John Lohse
-
Patent number: 7579303Abstract: A method for reducing the viscosity and toluene equivalence of an oil containing asphaltenes comprises the steps of: a) mixing with the oil, a polar solvent, and an asphaltene dispersant additive wherein the weight ratio of oil:polar solvent is in the range of 10:0.1 to 10:5, the asphaltene dispersant additive is at a treat rate in the range of 0.025 to 5 weight percent based on the weight of the oil, and then, b) removing at least 90 wt % of the polar solvent from the mixture of oil, polar solvent and the asphaltene dispersant additive to provide upgraded oil with reduced viscosity and toluene equivalence.Type: GrantFiled: July 1, 2005Date of Patent: August 25, 2009Assignee: Exxonmobil Research and Engineering CompanyInventors: Ramesh Varadaraj, Cornelius Hendrick Brons
-
Patent number: 7435333Abstract: A method for reducing the viscosity and surface wetting tendency of an oil containing hydrophilic aspaltenes comprises adding to said oil an amount of hydrophobic asphaltenes in the range of 1 to 80 wt % based on weight of the hydrophilic asphaltense of said oil.Type: GrantFiled: June 21, 2005Date of Patent: October 14, 2008Assignee: ExxonMobil Research and Engineering CompanyInventors: Ramesh Varadaraj, Cornelius Hendrick Brons
-
Patent number: 6599949Abstract: The invention is directed towards a chemical demulsifier formulation comprising an alkyl aromatic sulfonic acid additive with at least 16 carbon atom alkyl group and at least two 6 carbon-ring aromatic group and a co-additive selected from the group consisting of dipropylene monobutyl ether, aromatic naphtha, isoparaffinic solvent, cycloparaffinic solvent, aromatic solvent, diethylene glycol monobutyl ether, benzyl alcohol and mixtures thereof and a process for demulsification and desalting crude oil using the demulsifier formulation.Type: GrantFiled: October 1, 2002Date of Patent: July 29, 2003Assignee: ExxonMobil Research and Engineering CompanyInventors: Ramesh Varadaraj, Cornelius Hendrick Brons
-
Publication number: 20030092779Abstract: The invention is directed towards a chemical demulsifier formulation comprising an alkyl aromatic sulfonic acid additive and a process for demulsification and desalting crude oil using the demulsifier formulation.Type: ApplicationFiled: October 1, 2002Publication date: May 15, 2003Inventors: Ramesh Varadaraj, Cornelius Hendrick Brons
-
Patent number: 6489368Abstract: The invention is directed towards a chemical demulsifier formulation comprising an alkyl aromatic sulfonic acid additive with at least 16 carbon atom alkyl group and at least two 6 carbon-ring aromatic group and a co-additive selected from the group consisting of dipropylene monobutyl ether, isoparaffinic solvent, cycloparaffinic solvent, diethylene glycol monobutyl ether, benzyl alcohol, and mixtures thereof.Type: GrantFiled: March 9, 2001Date of Patent: December 3, 2002Assignee: ExxonMobil Research and Engineering CompanyInventors: Ramesh Varadaraj, Cornelius Hendrick Brons
-
Publication number: 20020161059Abstract: The invention is directed towards a chemical demulsifier formulation comprising an alkyl aromatic sulfonic acid additive and a process for demulsification and desalting crude oil using the demulsifier formulation.Type: ApplicationFiled: March 9, 2001Publication date: October 31, 2002Inventors: Ramesh Varadaraj, Cornelius Hendrick Brons
-
Patent number: 6444711Abstract: The invention is a method for forming a solid carbonaceous material into a pumpable fluid by combining the solid with an aqueous treatment solution and then subjecting the mixture to shearing forces. The solid carbonaceous material can be deasphalter unit rock (“DAU rock”), coke, and mixtures of DAU rock and coke. Aqueous treatment solutions contain a water soluble polymer.Type: GrantFiled: January 5, 2001Date of Patent: September 3, 2002Assignee: ExxonMobil Research and Engineering CompanyInventors: Ramesh Varadaraj, Cornelius Hendrick Brons, David William Savage
-
Publication number: 20010001308Abstract: The invention is a method for forming a solid carbonaceous material into a pumpable fluid by combining the solid with an aqueous treatment solution and then subjecting the mixture to shearing forces. The solid carbonaceous material can be deasphalter unit rock (“DAU rock”), coke, and mixtures of DAU rock and coke. Aqueous treatment solutions contain a water soluble polymer.Type: ApplicationFiled: January 5, 2001Publication date: May 17, 2001Inventors: Ramesh Varadaraj, Cornelius Hendrick Brons, David William Savage
-
Patent number: 6228239Abstract: In one embodiment, the invention is related to a process for desalting crude oil that requires less wash water than conventional desalting methods. In the preferred embodiment of the invention, a chemical demulsifier formulation comprising an emulsion-breaking chemical and a solvent carrier is added to the crude oil. Wash water is then added to the crude oil until the volume of water in the oil ranges from about 0.1 to about 3 vol. %. Subsequently, the mixture of crude oil, wash water, and chemical demulsifier formulation is subjected to opposed-flow mixing. Chemical emulsion-breakers useful in the invention have a hydrophobic tail group and a hydrophilic head group. Preferably, the emulsion breaker has the formula: x ranges from 1 to 5, y ranges from 0 to 2, and R is an alkyl group having 4-9 carbon atoms, and n ranges from 3 to 9.Type: GrantFiled: February 26, 1999Date of Patent: May 8, 2001Assignee: Exxon Research and Engineering CompanyInventors: Pacifico V. Manalastas, Ramesh Varadaraj, David W. Savage, Guido Sartori, Ramesh R. Hemrajani, Cornelius Hendrick Brons
-
Patent number: 6211252Abstract: The invention is a method for forming a solid carbonaceous material into a pumpable fluid by combining the solid with an aqueous treatment solution and then subjecting the mixture to shearing forces. The solid carbonaceous material can be deasphalter unit rock (“DAU rock”), coke, and mixtures of DAU rock and coke. Aqueous treatment solutions contain a water soluble polymer.Type: GrantFiled: July 9, 1999Date of Patent: April 3, 2001Assignee: Exxon Research and Engineering CompanyInventors: Ramesh Varadaraj, Cornelius Hendrick Brons, David William Savage
-
Patent number: 5849193Abstract: The present invention provides for enhanced bioremediation of hydrocarbon contaminated soils and waters by treating soil or water with a composition comprising of a metal chelated macrocyclic amido amines or mixtures thereof represented by the structural formula: ##STR1## where R is selected from linear or branched alkanes with 8 to 22 carbons, linear or branched alkenes with 4 to 22 carbon atoms;T.sub.1, T.sub.2 and T.sub.3 are independently selected from ethylene, trimethylene, CH.sub.2 CH.sub.2 (NHCH.sub.2 CH.sub.2).sub.x where x is an integer from 1 to 10;MaQb is a metal compound wherein M is a cation selected from cations of Fe, Co, Ni, Cu, Zn, and Mn; and,Q is an anion selected from nitrate, phosphate anions; and a and b are integers from 1 to 3 necessary to satisfy the valence requirements of M and Q.a phosphorous source, anda diluent.Type: GrantFiled: July 12, 1996Date of Patent: December 15, 1998Assignee: Exxon Research and Engineering CompanyInventors: Ramesh Varadaraj, Stanley J. Brois, Jan Bock, Cornelius Hendrick Brons
-
Patent number: 5811290Abstract: A method and composition for enhancing the biodegradation of hydrocarbon contaminated soil, water, and/or sludge are disclosed. The composition comprises an adduct of urea with a non-ionic surfactant and a phosphorous source. The disclosed method provides for the application of a degradation effective amount of a composition which comprises a N:P ratio which ranges from 10:2 to about 10:0.5 and the urea and non-ionic surfactant are present in the adduct in a weight ratio ranging from 98:2 to 75:25. Further, the method of biodegradation is carried out by the application of the composition to provide for a C:N:P ratio of 100:10:1 to 100:1:001. The C:N:P ratio is based on the weight percent of the hydrocarbon contaminate in the soil, water and/or sludge sites to be treated.Type: GrantFiled: October 7, 1997Date of Patent: September 22, 1998Assignee: Exxon Research and Engineering CompanyInventors: Ramesh Varadaraj, Cornelius Hendrick Brons
-
Patent number: 5797700Abstract: The present invention provides a composition for dispersing oil slicks comprising a twin tail surfactant or mixture of twin tail surfactants having the general formula: ##STR1## wherein R.sub.1 and R.sub.3 may be the same or different alkyl or alkenyl groups; R.sub.2 is H or OH; and x is from 1 to about 20.Type: GrantFiled: October 25, 1996Date of Patent: August 25, 1998Assignee: Exxon Research and Engineering CompanyInventors: Ramesh Varadaraj, Max Leo Robbins, Salvatore James Pace, Cornelius Hendrick Brons
-
Patent number: 5705690Abstract: One embodiment of the present invention provides compounds comprising an adduct of urea with a non-ionic surfactant. Another embodiment of the present invention, there is provided a composition suitable for enhancing the bioremediation of contaminated soils and water which comprises at least one adduct of urea with a non-ionic surfactant, preferably in combination with a phosphorous source.Type: GrantFiled: September 2, 1994Date of Patent: January 6, 1998Assignee: Exxon Research and Engineering CompanyInventors: Ramesh Varadaraj, Cornelius Hendrick Brons
-
Patent number: 5672739Abstract: The present invention comprises a novel composition of matter having the general formula: ##STR1## wherein R.sub.1 is H or an alkoxide of from 5 to about 20 carbon atoms;x is an integer of from about 8 to 22 when R.sub.1 =H and from about 2 to 5 when R.sub.1 is an alkoxide;R.sub.2 is selected independently from H, (CH.sub.2 CH.sub.2 O).sub.m H, and (CH.sub.2 CH(CH.sub.3)O).sub.m H;R.sub.3 is selected independently from H, (CH.sub.2 CH.sub.2 O).sub.n H, and (CH.sub.2 CH(CH.sub.3)O).sub.n H;m and n are integers from 1 to 50; and y and z are integers from 2 to 10.Type: GrantFiled: July 12, 1996Date of Patent: September 30, 1997Assignee: Exxon Research & Engineering CompanyInventors: Ramesh Varadaraj, Max Leo Robbins, Cornelius Hendrick Brons