Patents Assigned to ExxonMobil Research and Engineering Company
  • Patent number: 11084998
    Abstract: 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: Grant
    Filed: January 23, 2018
    Date of Patent: August 10, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Alexander S. Freer, Charles D. Lund, Heather D. Hamje, Krystal B. Wrigley, Kenneth C. H. Kar
  • Patent number: 11084983
    Abstract: Systems and methods are provided for conversion of oxygenate-containing feeds to a hydrocarbon effluent that includes a naphtha boiling range portion with an increased research octane number and/or increased octane rating. The conditions for converting the oxygenate-containing feed can correspond to conversion conditions for fluidized bed operation and/or moving bed operation, with a low acidity catalyst that also includes phosphorus to improve the hydrogen transfer rate relative to the expected hydrogen transfer rate for a low acidity catalyst. In addition to providing a naphtha fraction with an improved research octane number and/or octane rating, the amount of durene in the naphtha fraction can be reduced or minimized.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: August 10, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Brandon J. O'Neill
  • Patent number: 11084985
    Abstract: Methods and systems are provided herein utilizing a membrane cascade to separate a hydrocarbon feed into boiling point fractions. Also provided herein are methods for selecting membranes for said cascades to achieve the desired boiling point fraction separation.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 10, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Benjamin A. McCool, Dhaval A. Bhandari, Yogesh V. Joshi
  • Patent number: 11073804
    Abstract: Systems and methods are provided for interfacing multiple layers of optimization for a model of one or more processes in a processing environment to achieve increased or maximized stability in the underlying layer. To improve consistency between the solutions at the different model levels, the lower level of optimization can have extra constraints added to the optimization problem which target variables at their unconstrained values in the upper layer of optimization. The systems and methods can facilitate selection of variables to receive an external target such that stability of the solution is improved or maximized. This can be achieved, at least in part, by identifying variables that provide a reduced or minimized condition number for a sub-matrix in the lower level model when an additional external constraint is applied.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: July 27, 2021
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Max A. Fahrenkopf, William P. Snow, Ivan E. Rodriguez Colon
  • Patent number: 11059941
    Abstract: The present disclosure relates to methods for preparing materials from heavy feedstocks. In particular, the disclosure provides a chemical process to convert heavy feedstocks with predominant polyaromatic hydrocarbon molecules or species, including the residues of petrochemical refining or extraction, into thermoset or thermoplastic materials that can be used alone or as a component in a composite material.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: July 13, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Huaxing Zhou, Arnold Lustiger, Victor DeFlorio, Srinivasan Rajagopalan, Timothy D. Shaffer, Donald N. Schulz
  • Patent number: 11060040
    Abstract: Systems and methods are provided for block operation during lubricant and/or fuels production from deasphalted oil. During “block” operation, a deasphalted oil and/or the hydroprocessed effluent from an initial processing stage can be split into a plurality of fractions. The fractions can correspond, for example, to feed fractions suitable for forming a light neutral fraction, a heavy neutral fraction, and a bright stock fraction, or the plurality of fractions can correspond to any other convenient split into separate fractions. The plurality of separate fractions can then be processed separately in the process train (or in the sweet portion of the process train) for forming fuels and/or lubricant base stocks. This can allow for formation of unexpected base stock compositions.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: July 13, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Lisa I-Ching Yeh, Yogi V. Shukla, Pilanda Watkins-Curry, Camden N. Henderson, Kendall S. Fruchey, Michael B. Carroll, Adrienne R. Diebold
  • Patent number: 11060045
    Abstract: Systems and methods are provided for processing a feed derived from a renewable source to form oligomerized compounds corresponding to waxes, ketone waxes, and/or lubricant boiling range compounds. The oligomerized compounds derived from the renewable source can have various novel properties relative to waxes and/or lubricant boiling range compounds derived from mineral sources or derived from renewable sources in a conventional manner. The oligomerized compounds can be derived from a renewable source including fatty acids and/or fatty acid derivatives, such as glycerides (including triglycerides) and fatty amides. Optionally but preferably, at least a portion of the fatty acids and/or fatty acid derivatives can include olefinic bonds.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: July 13, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Virginia M. Reiner, Michel Daage, Kun Wang, Chunping Wu, Sarvesh K. Agrawal
  • Patent number: 11059333
    Abstract: In various aspects, the performance optimization system described herein optimizes vehicle performance through smart alerts communicated to an operator, owner, or fleet manager of a vehicle. When a vehicle characteristic is outside of the target range, a smart alert can be communicated to the user to encourage the user to bring the vehicle characteristic back into a target range. Aspects of the performance optimization system can focus on tire characteristics, which are one type of vehicle characteristic. Exemplary tire characteristics can include tire pressure, tire tread, and tire alignment. In order to generate smart alerts, vehicle information can be gathered from a variety of sources. In particular, information about a tire can be collected from an onboard tire pressure monitoring system, tire mats, or other mechanisms. This information can be analyzed to determine whether vehicle characteristics are inside or outside of a target range for the particular characteristic.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: July 13, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Mohan Kalyanaraman, Adam G. Stern
  • Patent number: 11055908
    Abstract: A two-stage method for iteratively inverting geophysical data for the purpose of subsurface imaging, including: obtaining at least one geophysical dataset and an initial subsurface model; representing subsurface such that a geometry of a geobody is defined using a set of basis functions, and a number of such basis functions is significantly smaller than the number of cells used in cell-based geobody representations, wherein an order of magnitude reduction is two or more for 2-D domains and 3 or more for 3-D domains; in a first stage, successively updating the initial subsurface model, only for the geobody, by performing iterative low-dimensional geophysical inversion based on minimizing a misfit between simulated geophysical data and the geophysical dataset, wherein the simulated geophysical data is generated from a current subsurface model at each iteration; generating a subsurface image from a final updated subsurface model obtained via the low-dimensional geophysical inversion, wherein the subsurface image
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 6, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ashutosh Tewari, Dimitar Trenev
  • Patent number: 11052324
    Abstract: Systems and methods are provided for improving process control of separation systems that include one or more dividing walls within a single column. It has been discovered that improved process control can be achieved by controlling the dividing wall columns based on energy balance instead of mass balance. The energy balancing can be performed in part based on controlling temperature at a plurality of locations on the feed side within a first divided portion of the column. Using energy balancing based on temperature control at a plurality of locations on the feed side can facilitate maintaining the operation of the dividing wall columns within a single region of phase space that can be suitably approximated by linear models. This can allow conventional process controllers to manage the manipulated and controlled variables. In addition to controlling the temperature at a plurality of locations on the feed side, a plurality of other characteristics can be used as manipulated or controlled variables.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: July 6, 2021
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Robert Piszczek, Philippe D'Hooghe, David A. Hokanson, Erik Kluwen
  • Patent number: 11046896
    Abstract: A process for cleansing a liquid of volatile contaminants can be accomplished by cross flowing a liquid through a contactor vessel. As the liquid cross flows through the horizontal contactor vessel, a radial flow pattern is induced in the liquid and the liquid is contacted with a cleansing gas. As the liquid moves through the contactor vessel, contaminants enter the cleansing cross current gas percolating through the liquid. The cross current gas may then be collected and cleansed of the contaminants it collected. The cleaned cleansing gas may then be recycled back into the contactor vessel.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: June 29, 2021
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Robert J. Falkiner, Ashok Uppal, Luke J. Kariparampil, Vincent A. Brunet, Alain D. Fomo
  • Patent number: 11046903
    Abstract: 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: Grant
    Filed: August 14, 2020
    Date of Patent: June 29, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Logan P. Renninger, Scott K. Berkhous, Donald J. Mattran, Geert W. Steenbeke, Dongil Kang, Kenneth C. H. Kar
  • Patent number: 11046897
    Abstract: Methods are provided for performing selective hydrodesulfurization on a naphtha boiling range stream naphtha boiling range portion of a feed. It has been unexpectedly discovered that hydrodesulfurization with improved octane retention can be performed by using a catalyst that comprises CoMo supported on a catalyst support that includes a zeotype framework. By using a catalyst support including a zeotype framework, an unexpectedly high amount of octane in the naphtha boiling range portion of the hydrodesulfurized effluent is maintained.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: June 29, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Chuansheng Bai, Majosefina Cunningham, Gregory R. Johnson, Wenyih F. Lai, Brandon J. O'Neill
  • Patent number: 11021676
    Abstract: Wax compositions are provided with improved properties for various applications, such as coating of composite cellulosic materials, e.g., composite wood material, more specifically oriented strand board. As described herein, wax compositions include a kinematic viscosity measured at 100° C. of ?13.1 mm2/s; and a contact angle on glass of ?34.4°, which provide enhanced water proofing properties. The wax composition may have a flash point of greater than 450° F. Wax composition are provided with improved properties for candle jars. As described herein, candle jar wax compositions include 150N foots oil and 600N slack wax. The wax composition can include up to about 80% 150N foots oil.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: June 1, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Sarvesh K. Agrawal, Joseph P. Rud, Larry E. Hoch
  • Patent number: 11015131
    Abstract: A system and methods for manufacturing a base oil stock from a light hydrocarbon stream are provided. An example method includes cracking a light hydrocarbon stream to form an impure olefinic stream, separating water from the impure olefinic stream, and oligomerizing the impure olefinic stream to form a raw oligomer stream. A light olefinic stream 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 and hydro-processed to form a hydro-processed stream. They hydro-processed stream is distilled to form the base oil stock.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: May 25, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Matthew S. Ide, Suzzy C. Ho, Guang Cao, Brian M. Weiss, Sara L. Yohe
  • Patent number: 11014810
    Abstract: Systems and methods are provided for integrating a fluidized coking operation, a reverse osmosis operation, a coke gasification operation and/or processes for production of compounds from the synthesis gas generated during the coke gasification. Conventional FLEXICOKING™ processes may produce carbon dioxide emissions and low Joule Flexigas, as well as waste water containing metals and poor quality coke containing metals, which may be expensive to process, or may require sending to other facilities for further processing. The systems and methods described herein address these issues in an advantageous and economical manner, with improved carbon capture, waste upgrade and chemicals production, while providing high value ash (e.g., for recovery of metals such as vanadium, nickel, sodium, iron, and mixtures thereof) and upgraded coke streams.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: May 25, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Martin De Wit, Mohsen N. Harandi
  • Patent number: 11014067
    Abstract: Polyamines with lengths carefully tailored to the framework dimensions are appended to metal-organic frameworks such as Mg2(dobpdc) (dobpdc4-=4,4?-dioxidobiphenyl-3,3?-dicarboxylate) with the desired loading of one polyamine per two metal sites. The polyamine-appended materials show step-shaped adsorption and desorption profiles due to a cooperative CO2 adsorption/desorption mechanism. Several disclosed polyamine-appended materials exhibit strong ability to capture CO2 from various compositions. Increased stability of amines in the framework has been achieved using high molecular weight polyamine molecules that coordinate multiple metal sites in the framework. The preparation of these adsorbents as well as their characterization are provided.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: May 25, 2021
    Assignees: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Simon C. Weston, Joseph M. Falkowski, Jeffrey R. Long, Eugene J. Kim, Jeffrey D. Martell, Phillip J. Milner, Rebecca L. Siegelman
  • Patent number: 11001767
    Abstract: Methods and systems for the conversion of hydrocarbon feedstocks, in particular, naphtha feedstocks, into a hydrocarbon product stream containing a high yield of high-octane gasoline and chemicals products. In particular, the conversion takes place over a series of functionally distinctive catalyst beds, at least one of which includes a modified zeolitic catalyst comprising a zeolite, a transition metal, and optionally a binder. Systems provided include a hydrocarbon feed stream, which may be full-range naphtha, a hydrocarbon product stream, and a plurality of functionally distinctive catalyst beds arranged in series, wherein at least one of the catalyst beds comprises a modified zeolitic catalyst.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: May 11, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: William R. Gunther, Brandon J. O'Neill
  • Patent number: D923659
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: June 29, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Samantha N. Nudelman, Rachel J. Moore, Tracey Chan, Esther U. Amaku, Alexis D Puchek, Christopher T. O'Brien
  • Patent number: D923660
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: June 29, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Esther U. Amaku, Alexis D. Puchek, Christopher T. O'Brien