Patents Assigned to ExxonMobil Research and Engineering Company
  • Patent number: 10995290
    Abstract: 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: Grant
    Filed: December 17, 2019
    Date of Patent: May 4, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Timothy J. Anderson, Erin R. Fruchey, Suzanne R. Golisz, Kenneth C. H. Kar, Sheryl B. Rubin-Pitel
  • Patent number: 10995286
    Abstract: In a process for improving the cold flow properties of a hydrocarbon feedstock, the feedstock is contacted with a catalyst composition comprising an EMM-17 molecular sieve and a hydrogenation component under dewaxing conditions effective to produce a dewaxed product having a cloud point and/or pour point that is reduced relative to the cloud point and/or pour point of the feedstock by at least 5° C.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: May 4, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Joseph E. Gatt, William W. Lonergan, Scott J. Weigel, Ivy D. Johnson, Karl G. Strohmaier, Simon C. Weston
  • Patent number: 10995352
    Abstract: The present disclosure relates to glycolipid compositions, methods for making glycolipid compositions, and their uses thereof. Glycolipid compositions can be prepared via yeast-mediated catalyzed reaction, and exhibit excellent surfactant properties having high corrosion inhibition performance, good reducing surface tension efficiency. Processes of the present disclosure can provide glycolipid compositions having one or more of: a ratio of lactonic glycolipids to glycolipid acylic esters is from about 1:10 to about 10:1, a molecular weight of from about 400 g/mol to about 10,000 g/mol, a corrosion rate of carbon steel from about 0.5 MPY to about 100 MPY at room temperature and at pH 4-6. Furthermore, aqueous solutions of the glycolipid compositions of the present disclosure can have a surface tension of from about 20 mN/m to about 80 mN/m.
    Type: Grant
    Filed: May 9, 2020
    Date of Patent: May 4, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Partha Nandi, Xiaozhou Zhang, Mohor Chatterjee, Vera Grankina, Changyub Paek, Fang Cao
  • Patent number: 10974340
    Abstract: Provided is an oil, gas and/or petrochemical ferrous or non-ferrous material component including two or more segments of ferrous or non-ferrous components for joining, wherein the two or more segments are of the same or different materials, and laser metal deposition weldments bonding adjacent segments of said components together. Also provided are methods of making laser metal deposition weldments and their uses in the oil, gas and petrochemical industry.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: April 13, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Ning Ma
  • Patent number: 10953385
    Abstract: Primary, secondary (1º,2º) alkylethylenediamine- and alkylpropylenediamine-appended variants of metal-organic framework are provided for CO2 capture applications. Increasing the size of the alkyl group on the secondary amine enhances the stability to diamine volatilization from the metal sites. Two-step adsorption/desorption profiles are overcome by minimizing steric interactions between adjacent ammonium carbamate chains. For instance, the isoreticularly expanded framework Mg2(dotpdc) (dotpdc4?=4,4?-dioxido-[1,1?:4?,1?-terphenyl]-3,3?-dicarboxylate), yields diamine-appended adsorbents displaying a single CO2 adsorption step. Further, use of the isomeric framework Mg-IRMOF-74-II or Mg2(pc-dobpdc) (pc-dobpdc4?=3,3-dioxidobiphenyl-4,4-dicarboxylate, pc=para-carboxylate) also leads to a single CO2 adsorption step with bulky diamines.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: March 23, 2021
    Assignees: The Regents of the University of California, ExxonMobil Research and Engineering Company
    Inventors: Jeffrey R. Long, Simon Christopher Weston, Phillip J. Milner, Jeffrey D. Martell, Rebecca L. Siegelman
  • Patent number: 10953369
    Abstract: The present invention is directed to novel functionalized spirocentric compounds and polymers thereof that produce hyper-rigid cross-linked membranes.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: March 23, 2021
    Assignees: Georgia Tech Research Corporation, ExxonMobil Research & Engineering Company
    Inventors: M. G. Finn, Craig McKay, Nicholas Bruno, Kirstie Thompson, Huaxing Zhou
  • Patent number: 10947464
    Abstract: Systems and methods are provided for integration of use deasphalted resid as a feed for fuels and/or lubricant base stock production with use of the corresponding deasphalter rock for gasification to generate hydrogen and/or fuel for the fuels and/or lubricant production process. The integration can include using hydrogen generated during gasification as a fuel to provide heat for solvent processing and/or using the hydrogen for hydroprocessing of deasphalted oil.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: March 16, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Kendall S. Fruchey, Sara K. Green, Anjaneya S. Kovvali, Timothy L. Hilbert, Michael B. Carroll, Ajit B. Dandekar, Sara L. Yohe, Stephen H. Brown, Tracie L. Owens, April D. Ross, Eric B. Senzer, Steven Pyl
  • Patent number: 10947475
    Abstract: A lubricating oil composition which can reduce the occurrence frequency of LSPI and which can ensure detergency. The lubricating oil composition which includes a lubricant base oil, a compound having calcium and/or magnesium, a compound having molybdenum and/or phosphorus, and an ashless dispersant having nitrogen and which satisfies X??0.85 and Y?0.18 (wherein X is calculated according to formula (1): X=([Ca]+0.5[Mg])×8?[Mo]×8?[P]×30 and Y is calculated according to formula (2): Y=[Ca]+1.65[Mg]+[N]). The lubricating oil composition for use in an internal combustion engine, more particularly, a lubricating oil composition for use in a supercharged gasoline engine.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: March 16, 2021
    Assignees: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ko Onodera, Shuzo Nemoto, Tomohiro Kato, Kosuke Fujimoto, Minoru Yamashita
  • Patent number: 10947460
    Abstract: Systems and methods are provided for producing upgraded raffinate and extract products from lubricant boiling range feeds and/or other feeds having a boiling range of 400° F. (204° C.) to 1500° F. (816° C.) or more. The upgraded raffinate and/or extract products can have a reduced or minimized concentration of sulfur, nitrogen, metals, or a combination thereof. The reduced or minimized concentration of sulfur, nitrogen, and/or metals can be achieved by hydrotreating a suitable feed under hydrotreatment conditions corresponding to relatively low levels of feed conversion. Optionally, the feed can also dewaxed, such as by catalytic dewaxing or by solvent dewaxing. Because excessive aromatic saturation is not desired, the pressure for hydrotreatment (and optional dewaxing) can be 500 psig (˜3.4 MPa) to 1200 psig (˜8.2 MPa).
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: March 16, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Benjamin S. Umansky, Keith K. Aldous, James W. Gleeson, Edward J. Blok, Richard A. Demmin
  • Patent number: 10942161
    Abstract: Methods are provided for in-situ detection of varnish and/or deposit precursors in a lubricant in a lubricating environment. An electrostatic accumulator can be used within a lubricating environment to enhance accumulation of varnish and/or deposit precursors on portions of the electrostatic accumulator. The deposits accumulated on the electrostatic accumulator can then be characterized in-situ. The potential difference across portions of the electrostatic accumulator can cause an enhanced rate of deposit accumulation on the electrostatic accumulator, which can facilitate characterization of the tendency of a lubricant to accumulate deposits in the lubricating environment.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 9, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Walter D. Vann, Kathleen K. Cooper, Spyridon Korres, Samuel Flores-Torres, Bhaskar Prabhakar, Erik Herz
  • Patent number: 10926226
    Abstract: The present invention is directed to methods of fabricating novel cross-linked membranes and to cross-linked membranes produced by the disclosed methods. Specifically, methods of fabricating cross-linked membranes according to the present invention may comprise direct crosslinking, crosslinking by addition of a small molecule, interfacial crosslinking of free-standing film, and interfacial crosslinking on a solid support.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: February 23, 2021
    Assignees: ExxonMobil Research & Engineering Company Company, Georgia Tech Research Corporation
    Inventors: Nicholas Bruno, Ronita Mathias, Yao Ma, Kirstie Thompson, Breanne Hamlett, Ryan P. Lively, Huaxing Zhou, M. G. Finn, Dhaval Bhandari, Craig McKay, Melinda Jue
  • Patent number: 10920636
    Abstract: Systems and methods are provided for performing selective catalytic reduction on engine exhaust using ethanol from the engine fuel as the reducing agent. Fuel from a fuel tank or other fuel source can be passed through a separation module to produce a fuel stream with a reduced ethanol content and an ethanol-enriched fraction. After combustion of fuel under lean conditions, the combustion exhaust can be exposed to a catalyst system in the presence of the ethanol-enriched fraction.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: February 16, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Brian M. P. Weiss, Shamel Merchant, Randall D. Partridge, Benjamin A. McCool, Ajit B. Dandekar, Herbert W. Barry
  • Patent number: 10920159
    Abstract: A base stock having at least 90 wt. % saturates, an amount and distribution of aromatics, as determined by ultra violet (UV) spectroscopy, including an absorptivity between 280 and 320 nm of less than 0.015 l/gm-cm, a viscosity index (VI) from 80 to 120, and having a cycloparaffin performance ratio greater than 1.05 and a kinematic viscosity at 100° C. between 4 and 6 cSt. A base stock having at least 90 wt. % saturates, an amount and distribution of aromatics, as determined by UV spectroscopy, including an absorptivity between 280 and 320 nm of less than 0.020 l/gm-cm, a viscosity index (VI) from 80 to 120, and having a cycloparaffin performance ratio greater than 1.05 and a kinematic viscosity at 100° C. between 10 and 14 cSt. A lubricating oil having the base stock as a major component, and one or more additives as a minor component. Methods for improving oxidation performance and low temperature performance of formulated lubricant compositions through the compositionally advantaged base stock.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: February 16, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Rugved P. Pathare, Lisa I-Ching Yeh, Yogi V. Shukla, Charles L. Baker, Jr., Bryan E. Hagee, Debra A. Sysyn, Kendall S. Fruchey
  • Patent number: 10918967
    Abstract: Systems and methods are provided for separating a feedstock into a plurality of separation products using dividing wall column technology that includes a plurality of dividing walls. Including a plurality of dividing walls in the column can provide reduced energy consumption and reduced equipment footprint for production of a plurality of high purity distillation products. The systems and methods can allow for separation of a large number of products from a feed while having a reduced or minimized number of liquid splits and/or vapor splits.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: February 16, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Robert Piszczek, Michael L. Hergenrother, Brian D. Albert, Jose X. Simonetty, Brian W. Heins, Vikram Singh, Zhonghcheng Wang
  • Patent number: 10920161
    Abstract: A low transition temperature mixture (LTTM) or deep eutectic solvent (DES) useful as a lubricating oil base stock and lubricating oil including a eutectic mixture of at least a first component and at least a second component. The at least first component comprises a hydrogen bond acceptor and the at least second component comprises a hydrogen bond donor. The eutectic mixture includes an equilibrium phase between the at least first component and the at least second component. The equilibrium phase does not exhibit physical characteristics of the at least first component in an unmixed state and the at least second component in an unmixed state. The at least first component and the at least second component form an intermolecular interaction between each other sufficient to prevent crystallization of the at least first component and the at least second component in the eutectic mixture. The eutectic mixture is a liquid at 20° C.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: February 16, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Abhimanyu O. Patil, Satish Bodige
  • Patent number: 10919830
    Abstract: Systems and methods are provided for conversion of gas phase reactants including CO and H2 to C2+ products using multiple catalysts in a single reactor while reducing or minimizing deactivation of the catalysts. Separate catalysts can be used that correspond to a first catalyst, such as a catalyst for synthesis of methanol from synthesis gas, and a second catalyst, such as a catalyst for conversion of methanol to a desired C2+ product. The separate catalysts can be loaded into the reactor in distinct layers that are separated by spacer layers. The spacer layers can correspond to relatively inert particles, such as silica particles. Optionally, the spacer layer can include an adsorbent, such as boron supported on alumina or boron carbide particles. The adsorbent can be suitable for selective adsorption of the one or more reaction products (such as one or more reaction by-products), to allow for further reduction or minimization of the deactivation of the conversion catalysts.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: February 16, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Jihad M. Dakka, Michael J. Sikorsky, Aruna Ramkrishnan, Chuansheng Bai, Anita S. Lee, Preeti Kamakoti, Anjaneya S. Kovvali, Jenna L. Walp
  • Patent number: 10915073
    Abstract: Systems and methods are provided for using a Deep Reinforcement Learning (DRL) agent to provide adaptive tuning of process controllers, such as Proportional-Integral-Derivative (PID) controllers. The agent can monitor process controller performance, and if unsatisfactory, can attempt to improve it by making incremental changes to the tuning parameters for the process controller. The effect of a tuning change can then be observed by the agent and used to update the agent's process controller tuning policy. It has been unexpectedly discovered that providing adaptive tuning based on incremental changes in tuning parameters, as opposed to making changes independent of current values of the tuning parameters, can provide enhanced or improved control over a controlled variable of a process.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 9, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Thomas A. Badgwell, Kuang-Hung Liu, Niranjan A. Subrahmanya, Wei D. Liu, Michael H. Kovalski
  • Patent number: 10913042
    Abstract: Systems and methods are provided for conversion of light paraffinic gases to form liquid products in a process performed in a fixed bed radial-flow reactor. The light paraffins can correspond to C3+ paraffins. Examples of liquid products that can be formed include C6-C12 aromatics, such as benzene, toluene, and xylene. The fixed bed radial-flow reactor can allow for improved control over the reaction conditions for paraffin conversion in spite of the fixed bed nature of the reactor. This can allow the process to operate with improved efficiency while reducing or minimizing the complexity of operation relative to non-fixed bed reactor systems.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: February 9, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Arsam Behkish, David W. Maher, Paul F. Keusenkothen, Jaime A. Valencia
  • Patent number: 10913909
    Abstract: Systems and methods are provided for modifying or selecting processing conditions for bright stock formation based on compositional characterization of the feedstock and/or bright stock products. In some aspects, the compositional information can include Z-class characterization of the components of a feed and/or bright stock product, optionally in combination with carbon number and/or molecular weight for the components. The compositional information can be used to select processing conditions to allow for removal and/or modification of selected components within a bright stock in order to improve throughput and/or provide desirable cold flow properties.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: February 9, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Liezhong Gong, Helen S. Wellons, Kuangnan Qian, Lisa I. Yeh, James W. Gleeson
  • Patent number: 10899984
    Abstract: High temperature antioxidant additives and methods that improve a liquid fuel composition's thermal oxidative stability are disclosed. A liquid fuel composition may comprise a liquid fuel and a high temperature antioxidant additive. The high temperature antioxidant additive may comprise an aromatic carbocyclic ring that is monocyclic and comprises substituents comprising a hydroxyl group and an iminomethyl group positioned in an ortho relationship.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: January 26, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventor: David J. Abdallah