Patents by Inventor Shifang Luo
Shifang Luo 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: 11118120Abstract: A method of upgrading refining streams with high polynucleararomatic hydrocarbon (PNA) concentrations can include: hydrocracking a PNA feed in the presence of a catalyst and hydrogen at 380° C. to 430° C., 2500 psig or greater, and 0.1 hr?1 to 5 hr?1 liquid hourly space velocity (LSHV), wherein the weight ratio of PNA feed to hydrogen is 30:1 to 10:1, wherein the PNA feed comprises 25 wt % or less of hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 50 wt % or greater to form a product comprising 50 wt % or greater of the hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 20 wt % or less.Type: GrantFiled: December 9, 2019Date of Patent: September 14, 2021Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Stephen H. Brown, Samia Ilias, Randolph J. Smiley, Richard Demmin, Shifang Luo, Brenda A. Raich, Aldrin G. Cuevas, Keith Wilson, Jesse R. McManus, Lei Zhang
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Patent number: 10899983Abstract: 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 22, 2020Date of Patent: January 26, 2021Assignee: 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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Patent number: 10889769Abstract: A systems and method for manufacturing a base stock from an ethanol stream are described herein. An example method includes dehydrating an ethanol stream to form an impure ethylene mixture, recovering an ethylene stream from the impure ethylene mixture, and oligomerizing the ethylene stream to form a raw oligomer stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is hydro-processed to form a hydro-processed stream, and the hydro-processed stream is distilled to form the base stock.Type: GrantFiled: August 15, 2019Date of Patent: January 12, 2021Assignee: ExxonMobil Research and Engineering CompanyInventors: Guang Cao, Suzzy C. Ho, Matthew S. Ide, Shifang Luo, William R. Gunther
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Patent number: 10858599Abstract: Systems and a method for manufacturing a base stock from a hydrocarbon stream are provided. An example method includes cracking the hydrocarbon stream to form a raw hydrocarbon stream, separating an ethylene stream from the raw hydrocarbon stream and oligomerizing the ethylene stream to form a raw oligomer stream. A light olefinic stream is distilled from the raw oligomer stream and linear alpha olefins are recovered from the light olefinic stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is hydro-processed to form a hydro-processed stream. The hydro-processed stream is distilled to form the base stock.Type: GrantFiled: August 15, 2019Date of Patent: December 8, 2020Assignee: ExxonMobil Research and Engineering CompanyInventors: Suzzy C. Ho, Guang Cao, Matthew S. Ide, Shifang Luo, William R. Gunther, Jo Ann M. Canich
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Publication number: 20200199464Abstract: Systems and methods are provided for producing naphthenic compositions corresponding to various types of products, such as naphthenic base oil, specialty industrial oils, and/or hydrocarbon fluids. The methods of producing the naphthenic compositions can include exposing a heavy fraction from a fluid catalytic cracking (FCC) process, such as a FCC bottoms fraction (i.e., a catalytic slurry oil), to hydroprocessing conditions corresponding to hydrotreating and/or aromatic saturation conditions. Naphthenic compositions formed from processing of FCC fractions are also provided.Type: ApplicationFiled: December 10, 2019Publication date: June 25, 2020Inventors: Shifang Luo, Lei Zhang, Samia Ilias, Richard A. Demmin, Mark A. Deimund, Stephen H. Brown, Randolph J. Smiley, Larry E. Hoch, Daniel Bien, Shiwen Li
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Publication number: 20200181509Abstract: A method of upgrading refining streams with high polynucleararomatic hydrocarbon (PNA) concentrations can include: hydrocracking a PNA feed in the presence of a catalyst and hydrogen at 380° C. to 430° C., 2500 psig or greater, and 0.1 hr?1 to 5 hr?1 liquid hourly space velocity (LSHV), wherein the weight ratio of PNA feed to hydrogen is 30:1 to 10:1, wherein the PNA feed comprises 25 wt % or less of hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 50 wt % or greater to form a product comprising 50 wt % or greater of the hydrocarbons having a boiling point of 700° F. (371° C.) or less and having an aromatic content of 20 wt % or less.Type: ApplicationFiled: December 9, 2019Publication date: June 11, 2020Inventors: Stephen H. Brown, Samia Ilias, Randolph J. Smiley, Richard Demmin, Shifang Luo, Brenda A. Raich, Aldrin G. Cuevas, Keith Wilson, Jesse R. McManus, Lei Zhang
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Publication number: 20200063044Abstract: Systems and a method for manufacturing a base stock from a hydrocarbon stream are provided. An example method includes cracking the hydrocarbon stream to form a raw hydrocarbon stream, separating an ethylene stream from the raw hydrocarbon stream and oligomerizing the ethylene stream to form a raw oligomer stream. A light olefinic stream is distilled from the raw oligomer stream and linear alpha olefins are recovered from the light olefinic stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is hydro-processed to form a hydro-processed stream. The hydro-processed stream is distilled to form the base stock.Type: ApplicationFiled: August 15, 2019Publication date: February 27, 2020Inventors: Suzzy C. Ho, Guang Cao, Matthew S. Ide, Shifang Luo, William R. Gunther, Jo Ann M. Canich
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Publication number: 20200063041Abstract: A systems and method for manufacturing a base stock from an ethanol stream are described herein. An example method includes dehydrating an ethanol stream to form an impure ethylene mixture, recovering an ethylene stream from the impure ethylene mixture, and oligomerizing the ethylene stream to form a raw oligomer stream. A heavy olefinic stream is distilled from the raw oligomer stream. The heavy olefinic stream is hydro-processed to form a hydro-processed stream, and the hydro-processed stream is distilled to form the base stock.Type: ApplicationFiled: August 15, 2019Publication date: February 27, 2020Inventors: Guang Cao, Suzzy C. Ho, Matthew S. Ide, Shifang Luo, William R. Gunther
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Patent number: 8366908Abstract: An integrated process for producing lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or a high pressure separation can be used to partially eliminate contaminants.Type: GrantFiled: December 23, 2009Date of Patent: February 5, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Krista Marie Prentice, Gary Paul Schleicher, Lei Zhang, Timothy Lee Hilbert, Michel A. Daage, Sylvain Hantzer, Wenyih F. Lai, David Mentzer, William Francis Heaney, Christine Nicole Elia, Shifang Luo, Stephen J. McCarthy, Mohan Kalyanaraman
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Patent number: 8143438Abstract: The present invention is directed to a process for hydrogenating one or more organic compounds especially unsaturated organic compounds by bringing the compound into contact with a hydrogen-containing gas in the presence of a catalyst, which comprises one or more catalytically active metals applied to a porous catalyst support. The one or more catalytically active metals having been derived via a decomposed organic complex of the metal on the support, in particular amine complexes of the metal. The decomposed complex may be treated with hydrogen to activate the catalyst before use as a hydrogenation catalyst.Type: GrantFiled: December 14, 2010Date of Patent: March 27, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stuart Leon Soled, Andrzej Malek, James Clarke Vartuli, Jennifer Schaefer Feeley, Sabato Miseo, Shifang Luo, Richard Henry Schlosberg, Joseph Ernest Baumgartner, Christine E. Kliewer, Steven T. Ragomo
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Publication number: 20110082311Abstract: The present invention is directed to a process for hydrogenating one or more organic compounds especially unsaturated organic compounds by bringing the compound into contact with a hydrogen-containing gas in the presence of a catalyst, which comprises one or more catalytically active metals applied to a porous catalyst support. The one or more catalytically active metals having been derived via a decomposed organic complex of the metal on the support, in particular amine complexes of the metal. The decomposed complex may be treated with hydrogen to activate the catalyst before use as a hydrogenation catalyst.Type: ApplicationFiled: December 14, 2010Publication date: April 7, 2011Inventors: Stuart Leon Soled, Andrzej Malek, James Clarke Vartuli, Jennifer Schaefer Feeley, Sabato Miseo, Shifang Luo, Richard Henry Schlosberg, Joseph Ernest Baumgartner, Christine E. Kliewer, Steven T. Ragomo
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Patent number: 7875742Abstract: The present invention is directed to a process for hydrogenating one or more organic compounds especially unsaturated organic compounds by bringing the compound into contact with a hydrogen-containing gas in the presence of a catalyst, which comprises one or more catalytically active metals applied to a porous catalyst support. The one or more catalytically active metals having been derived via a decomposed organic complex of the metal on the support, in particular amine complexes of the metal. The decomposed complex may be treated with hydrogen to activate the catalyst before use as a hydrogenation catalyst.Type: GrantFiled: February 25, 2010Date of Patent: January 25, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stuart Leon Soled, Andrzej Malek, James Clarke Vartuli, Jennifer Schaefer Feeley, Sabato Miseo, Shifang Luo, Richard Henry Schlosberg, Joseph Ernest Baumgartner, Christine E. Kliewer, Steven T. Ragomo
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Publication number: 20100187156Abstract: An integrated process for producing lubricant base oils from feedstocks under sour conditions is provided. The ability to process feedstocks under higher sulfur conditions allows for reduced cost processing and increases the flexibility in selecting a suitable feedstock. The sour feed can be delivered to a catalytic dewaxing step without any separation of sulfur and nitrogen contaminants, or a high pressure separation can be used to partially eliminate contaminants.Type: ApplicationFiled: December 23, 2009Publication date: July 29, 2010Inventors: Krista Marie Prentice, Gary Paul Schleicher, Lei Zhang, Timothy Lee Hilbert, Michel A. Daage, Sylvain Hantzer, Wenyih F. Lai, David Mentzer, William Francis Heaney, Christine Nicole Elia, Shifang Luo, Stephen J. McCarthy, Mohan Kalyanaraman
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Publication number: 20100184895Abstract: The present invention is directed to a process for hydrogenating one or more organic compounds especially unsaturated organic compounds by bringing the compound into contact with a hydrogen-containing gas in the presence of a catalyst, which comprises one or more catalytically active metals applied to a porous catalyst support. The one or more catalytically active metals having been derived via a decomposed organic complex of the metal on the support, in particular amine complexes of the metal. The decomposed complex may be treated with hydrogen to activate the catalyst before use as a hydrogenation catalyst.Type: ApplicationFiled: February 25, 2010Publication date: July 22, 2010Inventors: Stuart Leon Soled, Andrzej Malek, James Clarke Vartuli, Jennifer Schaefer Feeley, Sabato Miseo, Shifang Luo, Richard Henry Schlosberg, Joseph Ernest Baumgartner, Christine E. Kliewer, Steven T. Ragomo
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Patent number: 7732634Abstract: The present invention is directed to a process for hydrogenating one or more organic compounds especially unsaturated organic compounds by bringing the compound into contact with a hydrogen-containing gas in the presence of a catalyst, which comprises one or more catalytically active metals applied to a porous catalyst support. The one or more catalytically active metals having been derived via a decomposed organic complex of the metal on the support, in particular amine complexes of the metal. The decomposed complex may be treated with hydrogen to activate the catalyst before use as a hydrogenation catalyst.Type: GrantFiled: November 18, 2003Date of Patent: June 8, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stuart Leon Soled, Andrzej Malek, James Clarke Vartuli, Jennifer Schaefer Feeley, Sabato Miseo, Shifang Luo, Richard Henry Schlosberg, Joseph Ernest Baumgartner, Christine E. Kliewer, Steven T. Ragomo
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Patent number: 7678954Abstract: In a process for producing a hydrocarbon composition, a feed comprising at least one C3 to C8 olefin and an olefinic recycle stream rich in C9? hydrocarbons is contacted with a crystalline molecular sieve catalyst having an average crystal size no greater than 0.05 micron and an alpha value between about 100 and about 600 in at least one reaction zone under olefin oligomerization conditions including an inlet temperature between about 150° C. and about 350° C., a pressure of at least 2,860 kPa and a recycle to feed weight ratio of about 0.1 to about 3.0. The contacting produces an oligomerization effluent stream, which is separated into at least a hydrocarbon product stream rich in C9+ hydrocarbons and the olefinic recycle stream.Type: GrantFiled: January 27, 2006Date of Patent: March 16, 2010Assignee: ExxonMobil Chemical Patents, Inc.Inventors: Keith H. Kuechler, Stephen Harold Brown, Helge Jaensch, Georges M. Mathys, Shifang Luo, Jane C. Cheng
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Publication number: 20080093265Abstract: A process for the removal of sulfur compounds from FCC catalytic naphtha which is simple to implement and is economical in operation operates by selectively hydrofining the cracked naphtha to remove sulfur without sacrificing octane (hydrodesulfurization typically around 85%) followed by a downstream alkylation which will remove residual sulfur from the gasoline boiling range. The alkylation is carried out using a solid, acidic molecular sieve catalyst under mild conditions to shift sulfur species from the lighter, olefin-rich portions of the naphtha to the heavy, olefin-poor gasoline. Separation of the heavy portion of the treated product followed by catalytic hydrodesulfurization or some other means (e.g. sorption) removes the sulfur from the heavy portion without losing significant octane value.Type: ApplicationFiled: September 14, 2007Publication date: April 24, 2008Applicant: ExxonMobil Research and Engineering CompanyInventors: Benjamin Umansky, Shifang Luo, Peter Jacobs, John Thurtell, Michael Clark
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Publication number: 20070093683Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating under conditions effective for the methylation, the benzene/toluene present in the reformate outside the reforming loop, to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.Type: ApplicationFiled: December 12, 2006Publication date: April 26, 2007Inventors: Larry Iaccino, Jeevan Abichandani, John Buchanan, Robert Crane, Jihad Dakka, Xiaobing Feng, Shifang Luo, Gary Mohr
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Publication number: 20070036909Abstract: Processes for producing oriented films with at least one surface having a coating including at least one UV-active group and at least one unsaturated functional group are provided. The processes involve providing the coating on at least one surface of the oriented film by applying the coating to the surface of the film in-line during the film production process. In certain embodiments, the coating is applied prior to completion of the orientation process. In other embodiments, the coating is applied after completion of the orientation process and before completion of the film production process. In certain embodiments, the films are produced in biaxial orientation process and the coating is applied between the orientation steps during biaxial orientation of the film. In certain embodiments, the coating is applied to the film surface after orientation of the film in the machine direction and prior to orientation of the film in the transverse direction.Type: ApplicationFiled: August 9, 2005Publication date: February 15, 2007Inventors: Shifang Luo, Christophe Maertens
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Publication number: 20060247461Abstract: A process for hydrogenating benzenepolycarboxylic acids or derivatives thereof, such as esters and/or anhydrides, by bringing one or more benzenepolycarboxylic acids or one or more derivatives thereof into contact with a hydrogen-containing gas in the presence of one or more catalytically active metal, such as platinum, palladium, ruthenium or mixtures thereof, deposited on a catalyst support comprising one or more ordered mesoporous materials.Type: ApplicationFiled: November 18, 2003Publication date: November 2, 2006Inventors: Richard Schlosberg, Jose Santiesteban, Stuart Soled, Andrzej Malek, Joseph Baumgartner, Shifang Luo, Sabato Miseo, James Vartuli