Patents by Inventor Purachet Pitipuech

Purachet Pitipuech 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).

  • Separation process for C8 aromatics mixture
    Patent number: 10427994
    Abstract: Process for the distillative separation of ethylbenzene from a mixture comprising ethylbenzene and at least one other C8 aromatic compound, comprising distilling said mixture in a distillation column in the presence of an extractive solvent, characterized in that the distillation column is operated at a sub-atmospheric pressure.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: October 1, 2019
    Assignees: SCG CHEMICALS CO., LTD., GTC TECHNOLOGY US, LLC
    Inventors: Attapong Thirasak, Alisa Kammafoo, Wiroon Tanthapanichakoon, Zhongyi Ding, Sachin Joshi, Arnat Prombunglum, Worawut Tamthaisong, Purachet Pitipuech
  • SEPARATION PROCESS FOR C8 AROMATICS MIXTURE
    Publication number: 20170240489
    Abstract: Process for the distillative separation of ethylbenzene from a mixture comprising ethylbenzene and at least one other C8 aromatic compound, comprising distilling said mixture in a distillation column in the presence of an extractive solvent, characterized in that the distillation column is operated at a sub-atmospheric pressure.
    Type: Application
    Filed: September 5, 2014
    Publication date: August 24, 2017
    Inventors: Attapong THIRASAK, Alisa KAMMAFOO, Wiroon TANTHAPANICHAKOON, Zhongyi DING, Sachin JOSHI, Arnat PROMBUNGLUM, Worawut TAMTHAISONG, Purachet PITIPUECH
  • Method for inhibiting amine degradation during COcapture from a gas stream
    Patent number: 8105420
    Abstract: The present application includes a method for inhibiting amine degradation during CO2 capture from flue gas streams. Particularly, the present disclosure relates to a method of inhibiting O2- and/or SO2-induced degradation of amines using sodium sulfite (Na2SO3), potassium sodium tartrate tetrahydrate (KNaC4H4O6.4H2O), ethylenediaminetetraacetic acid (EDTA) or hydroxylamine (NH2OH), or analogs or mixtures thereof during CO2 capture by amines.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: January 31, 2012
    Assignee: The University of Regina
    Inventors: Raphael Idem, Paitoon Tontiwachwuthikul, Chintana Saiwan, Teeradet Supap, Purachet Pitipuech
  • METHOD FOR INHIBITING AMINE DEGRADATION DURING C02 CAPTURE FROM A GAS STREAM
    Publication number: 20090205496
    Abstract: The present application includes a method for inhibiting amine degradation during CO2 capture from flue gas streams. Particularly, the present disclosure relates to a method of inhibiting O2- and/or SO2-induced degradation of amines using sodium sulfite (Na2SO3), potassium sodium tartrate tetrahydrate (KNaC4H4O6.4H2O), ethylenediaminetetraacetic acid (EDTA) or hydroxylamine (NH2OH), or analogs or mixtures thereof during CO2 capture by amines.
    Type: Application
    Filed: November 19, 2008
    Publication date: August 20, 2009
    Applicant: THE UNIVERSITY OF REGINA
    Inventors: Raphael Idem, Paitoon Tontiwachwuthikul, Chintana Saiwan, Teeradet Supap, Purachet Pitipuech