Patents by Inventor Mark A. Nierode

Mark A. Nierode 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).

  • Patent number: 11981631
    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: Grant
    Filed: January 18, 2022
    Date of Patent: May 14, 2024
    Assignee: ExxonMobil Chemical Patents Inc.
    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
  • Publication number: 20240034703
    Abstract: Processes are provided for removing contaminants from a refinery gas. Such process can include recovering a process gas comprising ethylene and propylene from a steam cracker effluent recovered from a stream cracker in a steam cracker facility. A refinery gas can be recovered from a refinery facility. The process gas can be compressed in a plurality of compressor stages. A pressure of the refinery gas can be determined. A compressor stage in the plurality of compressor stages can be selected for introducing the refinery gas using the determined pressure of the refinery gas. The refinery gas can be introduced into the selected compressor stage to produce a combined gas that can include the process gas and the refinery gas. At least a portion of one or more impurities can be removed from the combined gas in the steam cracker facility to produce an upgraded combined gas.
    Type: Application
    Filed: January 3, 2022
    Publication date: February 1, 2024
    Inventors: Selma S. Lawrence, Mark A. Nierode, Rodney S. Smith
  • Publication number: 20230203386
    Abstract: The present disclosure relates to hydrocarbon pyrolysis of advantaged feeds. The advantaged feeds can comprise hydrocarbon, at least one halogen-containing composition, and at least one metal-containing composition, where the halogen-containing composition and the metal-containing composition are substantially different compositions. The disclosure encompasses steam cracking of advanced feeds comprising hydrocarbon and one or more of chloride-containing compositions, nickel-containing compositions, and vanadium-containing compositions.
    Type: Application
    Filed: June 17, 2020
    Publication date: June 29, 2023
    Inventors: Mark A. Nierode, Rodney S. Smith, Kapil Kandel
  • Publication number: 20230151283
    Abstract: The invention relates to hydrocarbon pyrolysis, e.g., the steam cracking of feeds comprising hydrocarbon and nitrogen-containing compositions. The invention also relates to equipment, systems, and apparatus useful for such pyrolysis, to the products and by-products of such pyrolysis, and to the further processing of such products and co-products, e.g., by polymerization.
    Type: Application
    Filed: March 12, 2021
    Publication date: May 18, 2023
    Inventors: Mark A. Nierode, Rodney S. Smith, Donald J. Norris, Asit K. Mondal, Roshni Jindal
  • Publication number: 20220306949
    Abstract: The present disclosure provides for processes for producing light hydrocarbons. In an embodiment, a process includes pressurizing the hydrocarbon feed in one or more pumps producing a pressurized hydrocarbon feed and heating the pressurized hydrocarbon feed in one or more heat exchangers to produce a heated hydrocarbon feed. The process includes mixing the heated hydrocarbon feed with water and separating an inter-stage hydrocarbon feed from interstage water. The process includes mixing the inter-stage hydrocarbon feed with water and separating a desalted hydrocarbon feed from outlet water. The process includes pyrolysing the desalted hydrocarbon feed in a steam cracker.
    Type: Application
    Filed: June 17, 2020
    Publication date: September 29, 2022
    Inventors: Mark A. Nierode, Magaly C. Barroeta, Chee-Kong Leong, John E. Asplin, Asit K. Mondal
  • 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
  • Patent number: 9523044
    Abstract: The invention relates to hydrocarbon streams containing impurities such as carbon oxysulfides, to processes for upgrading the hydrocarbons by removing at least a portion of the impurities therefrom, to equipment useful in such processes, and to the use of upgraded hydrocarbons for, e.g., chemical manufacturing.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: December 20, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Rodney S. Smith, Jr., Beshoy Abdelmalek, Mark A. Nierode, Michael Moran, Derrick B. Callander
  • Publication number: 20160046874
    Abstract: The invention relates to hydrocarbon streams containing impurities such as carbon oxysulfides, to processes for upgrading the hydrocarbons by removing at least a portion of the impurities therefrom, to equipment useful in such processes, and to the use of upgraded hydrocarbons for, e.g., chemical manufacturing.
    Type: Application
    Filed: July 13, 2015
    Publication date: February 18, 2016
    Inventors: Rodney S. Smith, JR., Beshoy Abdelmalek, Mark A. Nierode, Michael Moran, Derrick B. Callander
  • Patent number: 8378162
    Abstract: The invention relates to the integration of a dehydroaromatization process with the processes for the utilization of associated gas; gases comprising methane and higher hydrocarbons, and/or liquefied natural gas (LNG) production or usage.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: February 19, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Steven E. Silverberg, James R. Lattner, Andrea P. Wight, Garth M. Norman, Douglas E. Smith, Eric D. Nelson, Mark A. Nierode, Moses K. Minta
  • Publication number: 20100256245
    Abstract: The invention relates to the integration of a dehydroaromatization process with the processes for the utilization of associated gas; gases comprising methane and higher hydrocarbons, and/or liquefied natural gas (LNG) production or usage.
    Type: Application
    Filed: March 5, 2010
    Publication date: October 7, 2010
    Inventors: Larry L. Iaccino, Steven E. Silverberg, James R. Lattner, Andrea P. Wight, Garth M. Norman, Douglas E. Smith, Eric D. Nelson, Mark A. Nierode, Moses K. Minta
  • Patent number: 7589246
    Abstract: In a process for converting methane to aromatic hydrocarbons, a feed containing methane and a particulate catalytic material are supplied to a reaction zone operating under reaction conditions effective to convert at least a portion of the methane to aromatic hydrocarbons and to deposit carbonaceous material on the particulate catalytic material causing catalyst deactivation. At least a portion of the deactivated particulate catalytic material is removed from the reaction zone and is heated to a temperature of about 700° C. to about 1200° C. by direct and/or indirect contact with combustion gases produced by combustion of a supplemental fuel. The heated particulate catalytic material is then regenerated with a hydrogen-containing gas under conditions effective to convert at least a portion of the carbonaceous material thereon to methane and the regenerated catalytic particulate material is recycled back to the reaction zone.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: September 15, 2009
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Teng Xu, J. Scott Buchanan, Neeraj Sangar, Jeremy J. Patt, Mark A. Nierode, Kenneth R. Clem, Mobae Afeworki
  • Publication number: 20080249342
    Abstract: In a process for converting methane to aromatic hydrocarbons, a feed containing methane and a particulate catalytic material are supplied to a reaction zone operating under reaction conditions effective to convert at least a portion of the methane to aromatic hydrocarbons and to deposit carbonaceous material on the particulate catalytic material causing catalyst deactivation. At least a portion of the deactivated particulate catalytic material is removed from the reaction zone and is heated to a temperature of about 700° C. to about 1200° C. by direct and/or indirect contact with combustion gases produced by combustion of a supplemental fuel. The heated particulate catalytic material is then regenerated with a hydrogen-containing gas under conditions effective to convert at least a portion of the carbonaceous material thereon to methane and the regenerated catalytic particulate material is recycled back to the reaction zone.
    Type: Application
    Filed: March 3, 2008
    Publication date: October 9, 2008
    Inventors: Larry L. Iaccino, Teng Xu, J. Scott Buchanan, Neeraj Sangar, Jeremy J. Patt, Mark A. Nierode, Kenneth R. Clem, Mobae Afeworki