With Parallel Repeat Of A Sequence Of Reaction Stages (e.g., Ab-ab, Etc.) Patents (Class 422/640)
  • Reactor for producing C- to C- olefins from a material flow containing oxygenate, water vapor and one or more hydrocarbons
    Patent number: 8444940
    Abstract: A reactor is described for the production of C2 to C8 olefins from gaseous oxygenate and H2O and one or more material flows containing C2 C4, C5, C6, C7, C8 olefin and paraffin at 400° to 470° C., wherein several reaction stages which the material flow can pass through from the top to the bottom, each consisting of a support base with a catalyst layer situated on it, are arranged in a closed, upright container.
    Type: Grant
    Filed: April 21, 2007
    Date of Patent: May 21, 2013
    Assignee: Lurgi GmbH
    Inventors: Hermann Bach, Lothar Brehm, Jurgen Bohle, Gunter Quass, Gunther Heinz, Katja Bartels, Heinrich Dörr, Harald Kömpel
  • Process and apparatus for improved methods for making vinyl acetate monomer (VAM)
    Patent number: 8029748
    Abstract: The invention provides methods, apparatus and chemical systems for making vinyl acetate from ethylene, oxygen, and acetic acid.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: October 4, 2011
    Assignees: Velocys, Inc, Celanese International Corporation
    Inventors: Terry Mazanec, Victor J. Johnston, Michael Huckman, Sean P. Fitzgerald, James A. Foster, Daniel Lindley, Anna Lee Tonkovich, Francis P. Daly, Leslie Wade, Tony Hammock, Thomas Yuschak, Bin Yang, Kai Jarosch
  • Chemical reactor including heat exchangers
    Patent number: 7988936
    Abstract: The present invention discloses to a chemical reactor with high heat efficiency and small volume, the chemical reaction of the present invention comprises a first unit for performing heat exchange of exothermic reaction products with exothermic reaction raw material fed for exothermic reaction; a second unit including a plate assembly for exothermic reactions and a plate assembly for endothermic reactions; and a third unit for performing heat exchange of endothermic reaction products with endothermic reaction raw material fed for endothermic reactions.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: August 2, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Jun Yeon Cho, Jae Hoon Choe, Kwang Cheon Park, Gyea-Young Kwak, Chang Houn Rhee, Sun Hvuk Bae, Jung Uk Choi, Kwang Ho Song