Patents by Inventor W. Jay Lechnick

W. Jay Lechnick 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).

  • High hydrocarbon recovery membrane plus solvent based system
    Patent number: 10632417
    Abstract: A process is provided for treating a hydrocarbon gas stream comprising sending the hydrocarbon gas stream to a membrane unit to be separated into a residue stream and a permeate gas stream; then sending the permeate gas stream with or without undergoing compression to a solvent absorption unit to remove carbon dioxide and other impurities; and recovering a treated gas.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: April 28, 2020
    Inventors: Nikunj Prataprai Tanna, W. Jay Lechnick
  • HIGH HYDROCARBON RECOVERY MEMBRANE PLUS SOLVENT BASED SYSTEM
    Publication number: 20190224618
    Abstract: A process is provided for treating a hydrocarbon gas stream comprising sending the hydrocarbon gas stream to a membrane unit to be separated into a residue stream and a permeate gas stream; then sending the permeate gas stream with or without undergoing compression to a solvent absorption unit to remove carbon dioxide and other impurities; and recovering a treated gas.
    Type: Application
    Filed: January 23, 2018
    Publication date: July 25, 2019
    Inventors: Nikunj Prataprai Tanna, W. Jay Lechnick
  • Process for recovery of cracker feed from dry gas
    Patent number: 10052581
    Abstract: A process for recovering a steam cracking feed from FCC absorber off-gas comprising ethylene, ethane and heavier hydrocarbons and light gases involves removing hydrogen, nitrogen, sulfur species, carbon monoxide/dioxide, methane and other impurities from the off-gas. An absorption zone is upstream of an acetylene selective hydrotreating reactor to remove sufficient hydrogen sulfide that can poison the selective hydrotreating catalyst but leave sufficient sulfur in the feed stream to prevent temperature runaway.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: August 21, 2018
    Assignee: UOP LLC
    Inventors: Joseph A. Montalbano, W. Jay Lechnick, Xin X. Zhu