Patents by Inventor Kenneth C.H. KAR
Kenneth C.H. KAR 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).
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Patent number: 11879105Abstract: Provided are marine fuel compositions having acceptable wax behavior. In one form, the marine fuel composition has the following enumerated properties: a kinematic viscosity at 50° C. of about 5 cSt to about 700 cSt; a wax endpoint temperature of less than about 100° C.; and a ratio of kinematic viscosity at 100° C. to operating viscosity greater than 1, wherein the operating viscosity is at least about 2 cSt. The marine fuel composition exists in a liquid phase with essentially all the wax in the composition melted (essentially free of solid wax) prior to fuel injection into a marine engine.Type: GrantFiled: April 29, 2021Date of Patent: January 23, 2024Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANYInventors: Timothy J. Anderson, Erin R. Fruchey, Suzanne R. Golisz, Kenneth C. H. Kar, Sheryl B. Rubin-Pitel
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Publication number: 20230106622Abstract: Fuel or fuel blending compositions corresponding to blends of a resid-containing fraction one or more fatty acid alkyl esters are provided, along with methods for forming such a fuel or fuel blending composition are also provided. Optionally, the fuel or fuel blending composition can further include a secondary flux. The secondary flux can correspond to additional renewable flux or conventional distillate flux. Optionally, the amount of renewable flux can correspond to 25 vol % or more of the fuel or fuel blending composition. Optionally, the resulting fuel or fuel blending composition can have a BMCI?TE difference value of 15 or less.Type: ApplicationFiled: December 7, 2022Publication date: April 6, 2023Inventors: Lisa M. GUAY, Kenneth C.H. KAR, Sheryl B. RUBIN-PITEL
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Patent number: 11603502Abstract: Provided are marine fuels or fuel blending compositions, methods of making such fuels or compositions and methods of potentially reducing the life cycle carbon intensity of marine fuels or a fuel blending compositions. The marine fuel or fuel blending composition disclosed herein includes at least 20 vol % of a resid-containing fraction, and from 5 vol % to 80 vol % of one or more renewable fuel blending components. The one or more renewable fuel blending components includes one or more fatty acid alkyl esters. Optionally the one or more renewable fuel blending components may include gas-to-liquid hydrocarbons from renewable synthesis gas, hydrotreated natural fat or oil, hydrotreated waste cooking oil, hydrotreated tall oil, pyrolysis gas oil, or combinations thereof. Optionally, the resulting marine fuel or fuel blending composition can have a BMCI?TE difference value of 15 or less.Type: GrantFiled: November 10, 2021Date of Patent: March 14, 2023Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANYInventors: Lisa M. Guay, Kenneth C. H. Kar, Sheryl B. Rubin-Pitel
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Patent number: 11485920Abstract: Hydroprocessed residual fuel and/or fuel blending components are provided that have a sulfur and nitrogen level comparable to liquefied natural gas (LNG). Because of the low starting level of sulfur and/or nitrogen, the severity of the hydroprocessing that is needed for the crude oil or bottoms fraction in order to remove sulfur to a level that is comparable to LNG is reduced or minimized. This can allow the resulting marine residual fuels to have low carbon intensity, low SOx and NOx emission and high energy density. Since the hydroprocessed fractions correspond to a fuel oil product, the resulting marine fuel can be used in existing fleets, and can be distributed in existing bunkering systems.Type: GrantFiled: May 20, 2021Date of Patent: November 1, 2022Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANYInventors: Kenneth C. H. Kar, Sheryl B. Rubin-Pitel, Shifang Luo, Randolph J. Smiley, Lisa M. Guay
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Patent number: 11441089Abstract: Distillate boiling range and/or diesel boiling range compositions are provided that are formed from crude oils with unexpected combinations of high naphthenes to aromatics weight and/or volume ratio and a low sulfur content. This unexpected combination of properties is characteristic of crude oils that can be fractionated to form distillate/diesel boiling range compositions that can be used as fuels/fuel blending products with reduced or minimized processing. The resulting distillate boiling range fractions and/or diesel boiling range fractions can have an unexpected combination of a high naphthenes to aromatics weight and/or volume ratio, a low but substantial aromatics content, and a low sulfur content.Type: GrantFiled: May 20, 2021Date of Patent: September 13, 2022Assignee: ExxonMobil Technology and Engineering CompanyInventors: Sheryl B. Rubin-Pitel, Timothy J. Anderson, Kenneth C. H. Kar, Marcia E. Dierolf, Shifang Luo, Ian J. Laurenzi, Xinrui Yu, Yi Xu
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Patent number: 11396633Abstract: Marine diesel fuel/fuel blending component compositions and fuel oil/fuel blending component compositions are provided that are derived from crude oils having high naphthenes to aromatics volume and/or weight ratios and a low sulfur content. In addition to having a high naphthenes to aromatics ratio, a low sulfur content, and a low but substantial content of aromatics, such fuels and/or fuel blending components can have a reduced or minimized carbon intensity relative to fuels derived from conventional sources. The unexpected ratio of naphthenes to aromatics contributes to the fuels and/or fuel blending components further having additional unexpected properties, including low density, low kinematic viscosity, and/or high energy density.Type: GrantFiled: May 20, 2021Date of Patent: July 26, 2022Assignee: ExxonMobil Technology and Engineering CompanyInventors: Kenneth C. H. Kar, Sheryl B. Rubin-Pitel, Lisa M. Guay, Timothy J. Anderson, Shifang Luo, Marcia E. Dierolf
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Patent number: 11390819Abstract: Marine diesel fuel/fuel blending component compositions and fuel oil/fuel blending component compositions are provided that are derived from crude oils having high naphthenes to aromatics volume and/or weight ratios and a low sulfur content. In addition to having a high naphthenes to aromatics ratio, a low sulfur content, and a low but substantial content of aromatics, such fuels and/or fuel blending components can have a reduced or minimized carbon intensity relative to fuels derived from conventional sources. The unexpected ratio of naphthenes to aromatics contributes to the fuels and/or fuel blending components further having additional unexpected properties, including low density, low kinematic viscosity, and/or high energy density.Type: GrantFiled: May 20, 2021Date of Patent: July 19, 2022Assignee: ExxonMobil Technology and Engineering CompanyInventors: Kenneth C. H. Kar, Sheryl B. Rubin-Pitel, Lisa M. Guay, Timothy J. Anderson, Shifang Lou, Marcia E. Dierolf
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Publication number: 20220169934Abstract: Provided are marine fuels or fuel blending compositions, methods of making such fuels or compositions and methods of potentially reducing the life cycle carbon intensity of marine fuels or a fuel blending compositions. The marine fuel or fuel blending composition disclosed herein includes at least 20 vol % of a resid-containing fraction, and from 5 vol % to 80 vol % of one or more renewable fuel blending components. The one or more renewable fuel blending components includes one or more fatty acid alkyl esters. Optionally the one or more renewable fuel blending components may include gas-to-liquid hydrocarbons from renewable synthesis gas, hydrotreated natural fat or oil, hydrotreated waste cooking oil, hydrotreated tall oil, pyrolysis gas oil, or combinations thereof. Optionally, the resulting marine fuel or fuel blending composition can have a BMCI?TE difference value of 15 or less.Type: ApplicationFiled: November 10, 2021Publication date: June 2, 2022Inventors: Lisa M. Guay, Kenneth C.H. Kar, Sheryl B. Rubin-Pitel
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Patent number: 11299684Abstract: Marine diesel fuel/fuel blending component compositions and fuel oil/fuel blending component compositions are provided that are derived from crude oils having high naphthenes to aromatics volume and/or weight ratios and a low sulfur content. In addition to having a high naphthenes to aromatics ratio, a low sulfur content, and a low but substantial content of aromatics, such fuels and/or fuel blending components can have a reduced or minimized carbon intensity relative to fuels derived from conventional sources. The unexpected ratio of naphthenes to aromatics contributes to the fuels and/or fuel blending components further having additional unexpected properties, including low density, low kinematic viscosity, and/or high energy density.Type: GrantFiled: December 18, 2020Date of Patent: April 12, 2022Assignee: ExxonMobil Research and Engineering CompanyInventors: Kenneth C. H. Kar, Sheryl B. Rubin-Pitel, Lisa M. Guay, Timothy J. Anderson, Shifang Luo, Marcia E. Dierolf
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Publication number: 20210363449Abstract: Distillate boiling range and/or diesel boiling range compositions are provided that are formed from crude oils with unexpected combinations of high naphthenes to aromatics weight and/or volume ratio and a low sulfur content. This unexpected combination of properties is characteristic of crude oils that can be fractionated to form distillate/diesel boiling range compositions that can be used as fuels/fuel blending products with reduced or minimized processing. The resulting distillate boiling range fractions and/or diesel boiling range fractions can have an unexpected combination of a high naphthenes to aromatics weight and/or volume ratio, a low but substantial aromatics content, and a low sulfur content.Type: ApplicationFiled: May 20, 2021Publication date: November 25, 2021Inventors: Sheryl B. Rubin-Pitel, Timothy J. Anderson, Kenneth C.H. Kar, Marcia E. Dierolf, Shifang Luo, Ian J. Laurenzi, Xinrui Yu, Yi Xu
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Publication number: 20210363446Abstract: Marine diesel fuel/fuel blending component compositions and fuel oil/fuel blending component compositions are provided that are derived from crude oils having high naphthenes to aromatics volume and/or weight ratios and a low sulfur content. In addition to having a high naphthenes to aromatics ratio, a low sulfur content, and a low but substantial content of aromatics, such fuels and/or fuel blending components can have a reduced or minimized carbon intensity relative to fuels derived from conventional sources. The unexpected ratio of naphthenes to aromatics contributes to the fuels and/or fuel blending components further having additional unexpected properties, including low density, low kinematic viscosity, and/or high energy density.Type: ApplicationFiled: May 20, 2021Publication date: November 25, 2021Inventors: Kenneth C.H. Kar, Sheryl B. Rubin-Pitel, Lisa M. Guay, Timothy J. Anderson, Shifang Lou, Marcia E. Dierolf
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Publication number: 20210363447Abstract: Marine diesel fuel/fuel blending component compositions and fuel oil/fuel blending component compositions are provided that are derived from crude oils having high naphthenes to aromatics volume and/or weight ratios and a low sulfur content. In addition to having a high naphthenes to aromatics ratio, a low sulfur content, and a low but substantial content of aromatics, such fuels and/or fuel blending components can have a reduced or minimized carbon intensity relative to fuels derived from conventional sources. The unexpected ratio of naphthenes to aromatics contributes to the fuels and/or fuel blending components further having additional unexpected properties, including low density, low kinematic viscosity, and/or high energy density.Type: ApplicationFiled: December 18, 2020Publication date: November 25, 2021Inventors: Kenneth C.H. Kar, Sheryl B. Rubin-Pitel, Lisa M. Guay, Timothy J. Anderson, Shifang Luo, Marcia E. Dierolf
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Publication number: 20210363445Abstract: Marine diesel fuel/fuel blending component compositions and fuel oil/fuel blending component compositions are provided that are derived from crude oils having high naphthenes to aromatics volume and/or weight ratios and a low sulfur content. In addition to having a high naphthenes to aromatics ratio, a low sulfur content, and a low but substantial content of aromatics, such fuels and/or fuel blending components can have a reduced or minimized carbon intensity relative to fuels derived from conventional sources. The unexpected ratio of naphthenes to aromatics contributes to the fuels and/or fuel blending components further having additional unexpected properties, including low density, low kinematic viscosity, and/or high energy density.Type: ApplicationFiled: May 20, 2021Publication date: November 25, 2021Inventors: Kenneth C.H. Kar, Sheryl B. Rubin-Pitel, Lisa M. Guay, Timothy J. Anderson, Shifang Lou, Marcia E. Dierolf
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Publication number: 20210363444Abstract: Hydroprocessed residual fuel and/or fuel blending components are provided that have a sulfur and nitrogen level comparable to liquefied natural gas (LNG). Because of the low starting level of sulfur and/or nitrogen, the severity of the hydroprocessing that is needed for the crude oil or bottoms fraction in order to remove sulfur to a level that is comparable to LNG is reduced or minimized. This can allow the resulting marine residual fuels to have low carbon intensity, low SOx and NOx emission and high energy density. Since the hydroprocessed fractions correspond to a fuel oil product, the resulting marine fuel can be used in existing fleets, and can be distributed in existing bunkering systems.Type: ApplicationFiled: May 20, 2021Publication date: November 25, 2021Inventors: Kenneth C.H. Kar, Sheryl B. Rubin-Pitel, Shifang Luo, Randolph J. Smiley, Lisa M. Guay
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Patent number: 11099144Abstract: Fuel compositions that are low sulfur and have adequate combustion quality are disclosed. An example fuel composition that is low sulfur may have the following enumerated properties: a sulfur content of about 0.50% or less by weight of the fuel composition; a calculated carbon aromaticity index of about 870 or less; a density at 15° C. of about 900 kg/m3 to about 1,010 kg/m3; a kinematic viscosity at 50° C. of about 100 centistokes to about 700 centistokes; and an estimated cetane number of about 7 or greater.Type: GrantFiled: December 17, 2019Date of Patent: August 24, 2021Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Erin R. Fruchey, Suzanne R. Golisz, Kenneth C. H. Kar, Sheryl B. Rubin-Pitel
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Publication number: 20210246391Abstract: Provided are marine fuel compositions having acceptable wax behavior. In one form, the marine fuel composition has the following enumerated properties: a kinematic viscosity at 50° C. of about 5 cSt to about 700 cSt; a wax endpoint temperature of less than about 100° C.; and a ratio of kinematic viscosity at 100° C. to operating viscosity greater than 1, wherein the operating viscosity is at least about 2 cSt. The marine fuel composition exists in a liquid phase with essentially all the wax in the composition melted (essentially free of solid wax) prior to fuel injection into a marine engine.Type: ApplicationFiled: April 29, 2021Publication date: August 12, 2021Inventors: Timothy J. Anderson, Erin R. Fruchey, Suzanne R. Golisz, Kenneth C. H. Kar, Sheryl B. Rubin-Pitel
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Patent number: 11084998Abstract: Diesel boiling-range fuel blends including renewable diesel, biodiesel, and petrodiesel, where the diesel boiling-range fuel blend is capable of producing a minimal volume change of at least one swellable elastomer in a diesel boiling-range fuel system are provided herein. Methods of making the diesel boiling-range fuel blend as well as methods of reducing swellable elastomer shrinkage are also provided herein.Type: GrantFiled: January 23, 2018Date of Patent: August 10, 2021Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Alexander S. Freer, Charles D. Lund, Heather D. Hamje, Krystal B. Wrigley, Kenneth C. H. Kar
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Patent number: 11046903Abstract: This disclosure relates to compositions and methods of making an additized fuel composition comprising a base fuel composition and a randomly branched nitrate composition. The randomly branched nitrate composition includes a plurality of primary nitrate molecules, each molecule therein having an empirical chemical formula of CnNO3, wherein Cn is a branched aliphatic moiety which may be the same or different for each molecule, n is an integer selected from the group consisting of 8, 9, 10, 11 and 12, at least one carbon atom in the branched aliphatic moiety being bound to three or more carbon atoms, a branching index ranging from 1.8 to 2.2, and greater than 80% of the branches in the aliphatic moiety being in other than the alpha position. The additized fuel composition may be diesel fuel composition or a gasoline fuel composition.Type: GrantFiled: August 14, 2020Date of Patent: June 29, 2021Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Logan P. Renninger, Scott K. Berkhous, Donald J. Mattran, Geert W. Steenbeke, Dongil Kang, Kenneth C. H. Kar
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Patent number: 10995290Abstract: Marine fuel compositions that are low sulfur and have improved wax flow viscosity are disclosed. An example marine fuel composition may have the following enumerated properties: a sulfur content of about 0.50% or less by weight of the marine fuel composition; a density at 15° C. of about 0.86 g/cm3 to about 1.01 g/cm3; a kinematic viscosity at 50° C. of about 1 centistoke to about 700 centistokes; and a ratio of kinematic viscosity to wax flow viscosity of greater than 1, wherein the wax flow viscosity is determined using a minimum operating viscosity of about 8 centistokes at 50° C.Type: GrantFiled: December 17, 2019Date of Patent: May 4, 2021Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Timothy J. Anderson, Erin R. Fruchey, Suzanne R. Golisz, Kenneth C. H. Kar, Sheryl B. Rubin-Pitel
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Publication number: 20210054298Abstract: This disclosure relates to compositions and methods of making an additized fuel composition comprising a base fuel composition and a randomly branched nitrate composition. The randomly branched nitrate composition includes a plurality of primary nitrate molecules, each molecule therein having an empirical chemical formula of CnNO3, wherein Cn is a branched aliphatic moiety which may be the same or different for each molecule, n is an integer selected from the group consisting of 8, 9, 10, 11 and 12, at least one carbon atom in the branched aliphatic moiety being bound to three or more carbon atoms, a branching index ranging from 1.8 to 2.2, and greater than 80% of the branches in the aliphatic moiety being in other than the alpha position. The additized fuel composition may be diesel fuel composition or a gasoline fuel composition.Type: ApplicationFiled: August 14, 2020Publication date: February 25, 2021Inventors: Logan P. Renninger, Scott K. Berkhous, Donald J. Mattran, Geert W. Steenbeke, Dongil Kang, Kenneth C. H. Kar