Patents by Inventor May-Ru Chen

May-Ru Chen 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 for Converting Alkyne to Olefin
    Publication number: 20220242806
    Abstract: Disclosed are processes for converting an alkyne to an olefin comprising feeding a molecular-oxygen-containing gas stream into a converting zone of an alkyne converter along with an alkyn-containing feed mixture comprising hydrocarbons and molecular hydrogen to contact the converting catalyst. The converting catalyst can be regenerated online as a result.
    Type: Application
    Filed: January 18, 2022
    Publication date: August 4, 2022
    Inventors: Mark D. Thompson, David R. Slim, Grant H. Schumacher, Mark A. Nierode, May-Ru Chen, David B. Looney, Keng-Fai Kuan, Mary M. Rethwisch
  • Process for debottlenecking a system for the separation of a conjugated diolefin
    Patent number: 8080140
    Abstract: A process for debottlenecking a system for the separation of a conjugated diolefin the system including a first extraction section having an extractive distillation column and a stripping column and a second extraction section. The process includes the steps of withdrawing a first portion of an extract from the extractive distillation column, the extract having at least the first portion and a second portion, and transferring the first portion of the extract to a flash/separation vessel; separating the first portion of the extract into a vapor phase and a liquid phase by flashing in a flash/separation vessel; and combining the liquid phase of the separated first portion of the extract with the second portion of the extract to produce an extract feed for further processing. A system and process for the separation of a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the conjugated diolefin and higher acetylenes are also provided.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: December 20, 2011
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: May-Ru Chen, Micheal E. Smith, Ross T. Garner
  • Process for debottlenecking a system for the separation of a conjugated diolefin
    Publication number: 20080257711
    Abstract: A process for debottlenecking a system for the separation of a conjugated diolefin the system including a first extraction section having an extractive distillation column and a stripping column and a second extraction section. The process includes the steps of withdrawing a first portion of an extract from the extractive distillation column, the extract having at least the first portion and a second portion, and transferring the first portion of the extract to a flash/separation vessel; separating the first portion of the extract into a vapor phase and a liquid phase by flashing in a flash/separation vessel; and combining the liquid phase of the separated first portion of the extract with the second portion of the extract to produce an extract feed for further processing. A system and process for the separation of a conjugated diolefin from a C4- or C5-hydrocarbon mixture containing the conjugated diolefin and higher acetylenes are also provided.
    Type: Application
    Filed: April 18, 2007
    Publication date: October 23, 2008
    Inventors: May-Ru Chen, Micheal E. Smith, Ross T. Garner