Patents by Inventor Steven Webster Levine

Steven Webster Levine 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).

  • POLYALKYL SUCCINIC ANHYDRIDE DERIVATIVES AS ADDITIVES FOR FOULING MITIGATION IN PETROLEUM REFINERY PROCESSES
    Publication number: 20160060552
    Abstract: The present invention provides a method for reducing fouling, including particulate-induced fouling, in a hydrocarbon refining process including the steps of providing a crude hydrocarbon for a refining process; adding at least one polyalkyl succinic anhydride derivative additive disclosed herein. The additive can be complexed with a boronating agent, such as boric acid, to yield a boron-containing polyalkyl succinic anhydride derivative.
    Type: Application
    Filed: November 12, 2015
    Publication date: March 3, 2016
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Man Kit Ng, Glen Barry Brons, Steven Webster Levine, Kevin Mallory, Hong Cheng, Patrick Brant, Donna J. Crowther
  • QUANTITATIVE DETERMINATION OF NITROGEN SPECIES DISTRIBUTION IN DISPERSANTS
    Publication number: 20150369763
    Abstract: The distribution of nitrogen species in a long chain alkenyl succinimide dispersants is quantitated and speciated by means of 15N nuclear magnetic resonance spectroscopy.
    Type: Application
    Filed: June 2, 2015
    Publication date: December 24, 2015
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Gordon J. KENNEDY, Frank Cheng-Yu WANG, Steven Webster LEVINE, Liepao Oscar FARNG, Margaret May-Som WU
  • Evaluation of distillate composition of a crude
    Patent number: 8992770
    Abstract: Methods are provided for characterizing crude oils, crude fractions, or other potential feedstocks for forming lubricating base oils in order to determine the suitability of a feedstock for lubricating base oil production. One type of characterization is to determine the isoparaffin, naphthene, and/or aromatics contents of the distillate portion of a feedstock. A second characterization is to determine the viscosity index of a distillate portion of a feedstock after dewaxing the distillate portion to a target pour point.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 31, 2015
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Liezhong Gong, Corry S. Powers, Helen S. Wellons, Tahmid I. Mizan, Eric D. Joseck, Steven Webster Levine
  • METHODS AND SYSTEMS TO REMOVE POLAR MOLECULES FROM REFINERY STREAMS
    Publication number: 20150027849
    Abstract: The present invention relates to methods and systems for removing polar molecule contaminants from a refinery stream in connection with the processing of hydrocarbon fluids, chemicals, whole crude oils, blends and fractions in refineries and chemical plants that include adding high surface energy and/or high surface area nanoparticle compounds to a refinery stream to remove the polar molecule contaminants.
    Type: Application
    Filed: October 6, 2014
    Publication date: January 29, 2015
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Mohsen Shahmirzadi Yeganeh, Peter W. Jacobs, Ian Alfred Cody, Steven Webster Levine, Eric B. Sirota, Ramesh Gupta, Walter Weissman