Patents by Inventor Richard Paul Zoldak

Richard Paul Zoldak 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).

  • Method and system for purifying an ethylene-containing gas stream
    Patent number: 9670115
    Abstract: A two catalyst system is described having separate catalyst beds for the selective conversion of acetylene to ethylene which reduces the concentration of acetylene, dienes, O2, and NOx is disclosed. An ethylene containing gas stream, such as an off-gas stream from a refinery catalytic cracking unit used in the production of fuels and gas oils, is treated by first contacting the gas stream with a silver catalyst supported on a metal oxide and subsequently contacting the gas stream with a ruthenium catalyst supported on metal oxide. The two catalysts are contained within contiguous continuous reactors or reactor compartments.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: June 6, 2017
    Assignee: Clariant Corporation
    Inventors: Mingyong Sun, Steven A. Blankenship, Michael A. Urbancic, Richard Paul Zoldak
  • METHOD AND SYSTEM FOR PURIFYING AN ETHYLENE-CONTAINING GAS STREAM
    Publication number: 20130211162
    Abstract: A two catalyst system is described having separate catalyst beds for the selective conversion of acetylene to ethylene which reduces the concentration of acetylene, dienes, O2, and NOx is disclosed. An ethylene containing gas stream, such as an off-gas stream from a refinery catalytic cracking unit used in the production of fuels and gas oils, is treated by first contacting the gas stream with a silver catalyst supported on a metal oxide and subsequently contacting the gas stream with a ruthenium catalyst supported on metal oxide. The two catalysts are contained within contiguous continuous reactors or reactor compartments.
    Type: Application
    Filed: February 15, 2012
    Publication date: August 15, 2013
    Inventors: Mingyong Sun, Steven A. Blankenship, Michael A. Urbancic, Richard Paul Zoldak