Patents by Inventor Martin Cogswell

Martin Cogswell 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).

  • Process for increasing ethylene and propylene yield from a propylene plant
    Patent number: 10808999
    Abstract: A process for recovery of C2 and C3 components in an on-purpose propylene production system includes utilizing a packed rectifier with a countercurrent stream to strip C2 and C3 components from a combined de-ethanizer overhead lights vapor and cracked gas vapor stream.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: October 20, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Isa K. Mbaraka, William L. Jackson, Jr., Martin A. Cogswell, Mark Siddoway, Brien A. Stears
  • PROCESS FOR INCREASING ETHYLENE AND PROPYLENE YIELD FROM A PROPYLENE PLANT
    Publication number: 20170248364
    Abstract: The disclosure provides a process for recovery of C2 and C3 components in an on-purpose propylene production system utilizing a packed rectifier with a countercurrent stream to strip C2 and C3 components from a combined de-ethanizer overhead lights vapor and cracked gas vapor stream.
    Type: Application
    Filed: September 22, 2015
    Publication date: August 31, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Isa K. Mbaraka, William L. Jackson, JR., Martin A. Cogswell, Mark Siddoway, Brien A. Stears
  • Method for the separation of acetonitrile from water
    Patent number: 8609879
    Abstract: A method for separating acetonitrile from water, comprising (i) providing a stream S1 containing at least 95 wt.-%, based on the total weight of S1, acetonitrile and water, wherein the weight ratio of acetonitrile: water is greater than 1; (ii) adding a stream P, comprising at least 95 wt.-% C3, based on the total weight of stream P, to S1 to obtain a mixed stream S2, C3 being propene optionally admixed with propane with a minimum weight ratio of propene: propane of 7:3; (iii) subjecting S2 to a temperature of 92° C. at most and a pressure of at least 10 bar, obtaining a first liquid phase L1 essentially consisting of C3, acetonitrile, and water, and a second liquid phase L2 essentially consisting of water and acetonitrile wherein the weight ratio of acetonitrile: water in L2 is less than 1; (iv) separating L1 from L2.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: December 17, 2013
    Assignees: BASF SE, The Dow Chemical Company
    Inventors: Joaquim Henrique Teles, Hans-Georg Göbbel, Peter Baβler, Philip Kampe, Kai Gumlich, Christian Bartosch, Ulrich Müller, Richard Jacubinas, Natalia Trukhan, Meinolf Weidenbach, Martin Cogswell
  • METHOD FOR THE SEPARATION OF ACETONITRILE FROM WATER
    Publication number: 20110065939
    Abstract: A method for separating acetonitrile from water, comprising (i) providing a stream S1 containing at least 95 wt.-%, based on the total weight of S1, acetonitrile and water, wherein the weight ratio of acetonitrile:water is greater than 1; (ii) adding a stream P, comprising at least 95 wt.-% C3, based on the total weight of stream P, to S1 to obtain a mixed stream S2, C3 being propene optionally admixed with propane with a minimum weight ratio of propene:propane of 7:3; (iii) subjecting S2 to a temperature of 92° C. at most and a pressure of at least 10 bar, obtaining a first liquid phase L1 essentially consisting of C3, acetonitrile, and water, and a second liquid phase L2 essentially consisting of water and acetonitrile wherein the weight ratio of acetonitrile:water in L2 is less than 1; (iv) separating L1 from L2.
    Type: Application
    Filed: July 16, 2010
    Publication date: March 17, 2011
    Applicants: BASF SE, The Dow Chemical Company
    Inventors: Joaquim Henrique Teles, Hans-Georg Göbbel, Peter Baßler, Philip Kampe, Kai Gumlich, Christian Bartosch, Ulrich Müller, Richard Jacubinas, Natalia Trukhan, Meinolf Weidenbach, Martin Cogswell