Patents by Inventor David S. Krimsky

David S. Krimsky 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).

  • Processes and apparatuses for toluene methylation in an aromatics complex
    Patent number: 10239802
    Abstract: This present disclosure relates to processes and apparatuses for toluene methylation in an aromatics complex for producing paraxylene. More specifically, the present disclosure relates to processes and apparatuses wherein a toluene methylation zone is integrated within an aromatics complex for producing paraxylene thus allowing no benzene byproduct to be produced. This may be accomplished by incorporating a toluene methylation process into the aromatics complex and recycling the benzene to the transalkylation unit the aromatics complex.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: March 26, 2019
    Assignee: UOP LLC
    Inventors: David S. Krimsky, Robert B. Larson
  • DUAL RAFFINATE PARAXYLENE EXTRACTION PROCESS
    Publication number: 20190002371
    Abstract: The present invention relates to heavy desorbent and light desorbent aromatics complex flow scheme. More particularly, this invention relates to the integration of a dual raffinate para-xylene separation process with two isomerization zones. The first isomerization zone is a liquid phase isomerization zone and the second isomerization zone is either an ethylbenzene isomerization zone, or an isomerization zone using MAPSO-31.
    Type: Application
    Filed: June 21, 2018
    Publication date: January 3, 2019
    Inventors: Linda S. Cheng, James A. Johnson, Bryan K. Glover, David S. Krimsky
  • PROCESSES AND APPARATUSES FOR TOLUENE METHYLATION IN AN AROMATICS COMPLEX
    Publication number: 20180265429
    Abstract: This present disclosure relates to processes and apparatuses for toluene methylation in an aromatics complex for producing paraxylene. More specifically, the present disclosure relates to processes and apparatuses wherein a toluene methylation zone is integrated within an aromatics complex for producing paraxylene thus allowing no benzene byproduct to be produced. This may be accomplished by incorporating a toluene methylation process into the aromatics complex and recycling the benzene to the transalkylation unit the aromatics complex.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Inventors: David S. Krimsky, Robert B. Larson