Patents by Inventor John R. Messinger

John R. Messinger 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).

  • Publication number: 20080128323
    Abstract: In a system for thermal cracking gaseous feedstocks, the system including a gas cracker for producing an effluent comprising olefins, at least one transfer line exchanger for the recovery of process energy from the effluent and a water quench tower system, a process for extending the range of system feedstocks to include liquid feedstocks that yield tar is provided. The process includes the steps of injecting a first quench fluid downstream of a primary transfer line exchanger to quench the process effluent comprising olefins, separating in a first separation vessel a cracked product and a first byproduct stream comprising tar from the quenched effluent, directing the separated cracked product to a water quench tower system and quenching the separated cracked product with a second quench fluid to produce a cracked gas effluent for recovery and a second byproduct stream comprising tar. An apparatus for carrying out such process is also provided.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 5, 2008
    Inventors: James N. McCoy, Barrington M. Hammond, David J. Duhon, Mark A. Rooney, Robert D. Strack, John R. Messinger
  • Publication number: 20080128326
    Abstract: In a system for thermal cracking gaseous feedstocks, the system including a gas cracker for producing an effluent comprising olefins, at least one transfer line exchanger for the recovery of process energy from the effluent and a water quench tower system, a process for extending the range of system feedstocks to include liquid feedstocks that yield tar is provided. The process includes the steps of injecting a first quench fluid downstream of the at least one transfer line exchanger to quench the process effluent comprising olefins, separating in a separation vessel a cracked product and a first byproduct stream comprising tar from the quenched effluent, directing the separated cracked product to the water quench tower system and quenching the separated cracked product with a second quench fluid to produce a cracked gas effluent for recovery and a second byproduct stream comprising tar. An apparatus for cracking a liquid hydrocarbon feedstock that yield tar is also provided.
    Type: Application
    Filed: December 5, 2006
    Publication date: June 5, 2008
    Inventors: James N. McCoy, Walter F. Filupeit, Barrington M. Hammond, David J. Duhon, Mark A. Rooney, Robert A. D. Strack, John R. Messinger
  • Patent number: 7247765
    Abstract: A process is provided for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, optionally further heating the mixture, flashing the mixture within a flash/separation vessel to form a vapor phase and a liquid phase, partially condensing the vapor phase by contacting with a condenser within the vessel, to condense at least some coke precursors within the vapor while providing condensates which add to the liquid phase, removing the vapor phase of reduced coke precursors content as overhead and the liquid phase as bottoms, heating the vapor phase, cracking the vapor phase in a radiant section of a pyrolysis furnace to produce an effluent comprising olefins, and quenching the effluent and recovering cracked product therefrom. An apparatus for carrying out the process is also provided.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: July 24, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Richard C. Stell, George Stephens, Jennifer L. Bancroft, John R. Messinger
  • Patent number: 7193123
    Abstract: A process for cracking hydrocarbon feedstock containing resid comprising: heating the feedstock, mixing the heated feedstock with a fluid and/or a primary dilution steam stream to form a mixture, flashing the mixture to form a vapor phase and a liquid phase which collect as bottoms and removing the liquid phase, separating and cracking the vapor phase, and cooling the product effluent.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: March 20, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Richard C. Stell, Jennifer L. Bancroft, Arthur R. DiNicolantonio, Subramanian Annamalai, James N. McCoy, Paul F. Keusenkothen, George Stephens, John R. Messinger, James Mitchell Frye, Nick G. Vidonic, George J. Balinsky