Patents by Inventor Bradley P. Russell

Bradley P. Russell 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: 20220145193
    Abstract: The process removes hydrogen sulfide from hydrotreated gas by TSA. Hydrogen sulfide adsorbs on the adsorbent while allowing hydrogen in the hydrotreated gas to pass the adsorbent to provide a desulfided hydrogen gas stream and a sulfided adsorbent. A regenerant gas stream can be contacted with the sulfided adsorbent at a swing temperature to desorb hydrogen sulfide from the adsorbent into the regenerant gas stream. The regenerant gas stream can then be recycled to a hydrotreating reactor for processing biorenewable feed to provide hydrogen sulfide to the reactor. The desulfided gas stream can be purified to remove impurities such as carbon oxides and recycled to the hydrotreating reactor and/or used as the regenerant gas stream.
    Type: Application
    Filed: September 8, 2021
    Publication date: May 12, 2022
    Inventors: David A. Wegerer, Bradley P. Russell, Ashish Mathur, Hari S. Bajpai
  • Patent number: 11207636
    Abstract: A system that is used for the treatment of a net gas stream is disclosed. The system includes a compressor to produce a compressed gas stream from a net gas stream. The compressor is connected to a pressure swing adsorption unit where the net gas stream is separated to produce a hydrogen product stream and a tail gas stream. Tail gas stream from the pressure swing adsorption unit is sent to a first membrane unit to produce a first permeate stream and a first non-permeate stream. A portion of the tail gas stream is sent to a second membrane unit to produce a second permeate stream and a second non-permeate stream.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: December 28, 2021
    Assignee: UOP LLC
    Inventors: Bradley P. Russell, Gautam Pandey, David A. Wegerer, Wim Elseviers
  • Patent number: 11167239
    Abstract: A process is provided for increasing the recovery of high-purity hydrogen from a steam cracking process in situations where byproduct methane yield is high relative to hydrogen. After a hydrocarbon gas stream is sent through a cold box and demethanizer, a small proportion of methane is sent through a pressure swing adsorption unit separately from a gas stream that contains hydrogen to increase high-purity hydrogen recovery by about 6%.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: November 9, 2021
    Assignee: UOP LLC
    Inventor: Bradley P. Russell
  • Publication number: 20210309517
    Abstract: An adsorption process is provided to remove oxygen from a hydrogen stream through the use of a copper material in combination with layers of adsorbent to remove water and nitrogen from a hydrogen stream. This process is particularly useful for purification of hydrogen product gas from water electrolyzers with the hydrogen product gas having greater than 99.9 mol % purity.
    Type: Application
    Filed: June 18, 2021
    Publication date: October 7, 2021
    Inventors: Bradley P. Russell, William Macallan Cady, Stephen Caskey, Nasser Khazeni
  • Patent number: 11091704
    Abstract: The invention provides a process for producing hydrogen for a hydrogen consuming process comprising obtaining a net gas stream containing hydrogen, compressing the gas stream to a pressure of 20.7 to 68.9 bar (300 to 1000 psig) to produce a compressed gas stream; sending the compressed gas stream to a pressure swing adsorption unit to be separated into a hydrogen stream and a fuel gas stream; purging the pressure swing adsorption unit with an external purge gas stream from a hydroprocessing unit off gas; treating the off gas with a thermal swing adsorption unit to remove water and other impurities prior to purging the pressure swing adsorption unit, and using a protective adsorbent layer in the pressure swing adsorption unit to adsorb impurities from the external purge gas.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: August 17, 2021
    Assignee: UOP LLC
    Inventors: David A. Wegerer, Bradley P. Russell, Gautam Pandey, Wim F. Elseviers
  • Patent number: 11007472
    Abstract: Adsorption vessels and systems utilizing adsorption vessels are provided herein. In one embodiment, an adsorption vessel for receiving a fluid mixture and for separating a component from therein includes a vessel wall extending from a bottom end to a top end and defining a vessel chamber. A bottom inlet is formed in the bottom end of the adsorption vessel for introducing the fluid mixture to the vessel chamber. A filler material having a total porosity of less than about 25% and a density less than about 900 kg/m3 or an insert or both are positioned in the top void volume to increase overall performance of the adsorbent vessel.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 18, 2021
    Assignee: UOP LLC
    Inventors: Bradley P. Russell, David W. Greer, Shain-Jer Doong
  • Publication number: 20210060481
    Abstract: Process of treating a net gas stream is disclosed. The process includes sending the net gas stream to a compressor to produce a compressed gas stream. The compressed gas stream is then sent to a pressure swing adsorption unit to produce a hydrogen product stream and a tail gas stream. Tail gas stream from the pressure swing adsorption unit is sent to a first membrane unit to produce a first permeate stream and a first non-permeate stream. Portion of the tail gas stream is sent to a second membrane unit to produce a second permeate stream and a second non-permeate stream.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 4, 2021
    Inventors: Bradley P. Russell, Gautam Pandey, David A. Wegerer, Wim Elseviers
  • Publication number: 20210060482
    Abstract: A system that is used for the treatment of a net gas stream is disclosed. The system includes a compressor to produce a compressed gas stream from a net gas stream. The compressor is connected to a pressure swing adsorption unit where the net gas stream is separated to produce a hydrogen product stream and a tail gas stream. Tail gas stream from the pressure swing adsorption unit is sent to a first membrane unit to produce a first permeate stream and a first non-permeate stream. A portion of the tail gas stream is sent to a second membrane unit to produce a second permeate stream and a second non-permeate stream.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 4, 2021
    Inventors: Bradley P. Russell, Gautam Pandey, David A. Wegerer, Wim Elseviers
  • Patent number: 10773956
    Abstract: A process is disclosed for increasing hydrogen recovery in an integrated refinery and petrochemical complex in which natural gas is used as a co-purge gas in a pressure swing adsorption unit. This natural gas is recovered in tail gas from the pressure swing adsorption unit. This process is useful for refinery off-gas and partial oxidation feeds.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: September 15, 2020
    Assignee: UOP LLC
    Inventor: Bradley P. Russell
  • Publication number: 20200270130
    Abstract: A pressure swing adsorption process is provided to remove oxygen from a hydrogen stream through the use of a copper material in combination with layers of adsorbent to remove water, C2 and C3 hydrocarbons, as well as other impurities. The feed gas comprises more than 70 mol % hydrogen, at least 1 mol % methane and more than 10 ppmv oxygen. The purified product hydrogen stream comprises greater than 99 mol % hydrogen, with less than 1 ppmv oxygen.
    Type: Application
    Filed: January 24, 2020
    Publication date: August 27, 2020
    Inventors: Bradley P. Russell, David W. Greer, Mark M. Davis, Shain Doong, Jince Sebastian
  • Patent number: 10632414
    Abstract: The invention provides a process for providing a hydrogen stream to a process utilizing hydrogen comprising obtaining a gas stream containing hydrogen and compressing the gas stream to a pressure of at least 600 psig, Then the compressed gas stream is sent to a pressure swing adsorption unit containing a plurality of beds with at least 5 pressure equalization steps to produce a hydrogen stream. The hydrogen stream can then be compressed and sent to a process utilizing hydrogen. The compressed gas stream may be chilled before entering the pressure swing adsorption unit.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 28, 2020
    Inventors: Bradley P. Russell, David A. Wegerer, Gautam Pandey
  • Publication number: 20200101413
    Abstract: Adsorption vessels and systems utilizing adsorption vessels are provided herein. In one embodiment, an adsorption vessel for receiving a fluid mixture and for separating a component from therein includes a vessel wall extending from a bottom end to a top end and defining a vessel chamber. A bottom inlet is formed in the bottom end of the adsorption vessel for introducing the fluid mixture to the vessel chamber. A filler material having a total porosity of less than about 25% and a density less than about 900 kg/m3 or an insert or both are positioned in the top void volume to increase overall performance of the adsorbent vessel.
    Type: Application
    Filed: April 23, 2019
    Publication date: April 2, 2020
    Inventors: Bradley P. Russell, David W. Greer, Shain-Jer Doong
  • Publication number: 20200101411
    Abstract: A process is provided for increasing the recovery of high-purity hydrogen from a steam cracking process in situations where byproduct methane yield is high relative to hydrogen. After a hydrocarbon gas stream is sent through a cold box and demethanizer, a small proportion of methane is sent through a pressure swing adsorption unit separately from a gas stream that contains hydrogen to increase high-purity hydrogen recovery by about 6%.
    Type: Application
    Filed: April 23, 2019
    Publication date: April 2, 2020
    Inventor: Bradley P. Russell
  • Patent number: 10576410
    Abstract: A process is disclosed for producing hydrogen for a hydrogen consuming process comprising obtaining a gas stream containing hydrogen from a steam reforming hydrogen plant, sending the gas stream to a pressure swing adsorption unit to be separated into a hydrogen stream and a fuel gas stream; purging the pressure swing adsorption unit with an external purge gas stream from a hydroprocessing unit off gas; treating the off gas with a thermal swing adsorption unit to remove water and other impurities prior to purging the pressure swing adsorption unit; and using a protective adsorbent layer in the pressure swing adsorption unit at the product-hydrogen end of the bed to adsorb impurities from the external purge gas.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 3, 2020
    Inventors: Bradley P. Russell, Margaret A. Stine, David A. Wegerer, Gautam Pandey
  • Patent number: 10399032
    Abstract: Process and apparatuses for purifying a feed stream containing CO2 and predominantly hydrogen are provided. In an embodiment, the process includes passing the feed stream through a multilayer adsorbent bed comprising a first adsorbent section, a second adsorbent section downstream from the first adsorbent section and a third adsorbent section downstream from the second adsorbent section. The first adsorbent section comprises an activated carbon layer, the second adsorbent section comprises a layer of molecular sieve of the faujasite structure type with a Si/Al atomic ratio of from 1.5 to 8.0 and the third adsorbent section comprises a layer of molecular sieve of the faujasite structure type with a Si/Al atomic ratio of from 1.0 to 1.5. At least one of N2, CO2, CH4 and CO is adsorbed from the feed stream and a purified hydrogen product is recovered from the multilayer adsorbent bed.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: September 3, 2019
    Assignee: UOP LLC
    Inventors: Bradley P. Russell, Kirit M. Patel, Henry Rastelli
  • Publication number: 20190224611
    Abstract: The invention provides a process for providing a hydrogen stream to a process utilizing hydrogen comprising obtaining a gas stream containing hydrogen and compressing the gas stream to a pressure of at least 600 psig, Then the compressed gas stream is sent to a pressure swing adsorption unit containing a plurality of beds with at least 5 pressure equalization steps to produce a hydrogen stream. The hydrogen stream can then be compressed and sent to a process utilizing hydrogen. The compressed gas stream may be chilled before entering the pressure swing adsorption unit.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 25, 2019
    Inventors: Bradley P. Russell, David A. Wegerer, Gautam Pandey
  • Publication number: 20190225895
    Abstract: The invention provides a process for producing hydrogen for a hydrogen consuming process comprising obtaining a net gas stream containing hydrogen, compressing the gas stream to a pressure of 20.7 to 68.9 bar (300 to 1000 psig) to produce a compressed gas stream; sending the compressed gas stream to a pressure swing adsorption unit to be separated into a hydrogen stream and a fuel gas stream; purging the pressure swing adsorption unit with an external purge gas stream from a hydroprocessing unit off gas; treating the off gas with a thermal swing adsorption unit to remove water and other impurities prior to purging the pressure swing adsorption unit, and using a protective adsorbent layer in the pressure swing adsorption unit to adsorb impurities from the external purge gas.
    Type: Application
    Filed: January 24, 2019
    Publication date: July 25, 2019
    Inventors: David A. Wegerer, Bradley P. Russell, Gautam Pandey, Wim F. Elseviers
  • Publication number: 20190224612
    Abstract: A process is disclosed for producing hydrogen for a hydrogen consuming process comprising obtaining a gas stream containing hydrogen from a steam reforming hydrogen plant, sending the gas stream to a pressure swing adsorption unit to be separated into a hydrogen stream and a fuel gas stream; purging the pressure swing adsorption unit with an external purge gas stream from a hydroprocessing unit off gas; treating the off gas with a thermal swing adsorption unit to remove water and other impurities prior to purging the pressure swing adsorption unit; and using a protective adsorbent layer in the pressure swing adsorption unit at the product-hydrogen end of the bed to adsorb impurities from the external purge gas.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 25, 2019
    Inventors: Bradley P. Russell, Margaret A. Stine, David A. Wegerer, Gautam Pandey
  • Publication number: 20190194017
    Abstract: A process is disclosed for increasing hydrogen recovery in an integrated refinery and petrochemical complex in which natural gas is used as a co-purge gas in a pressure swing adsorption unit. This natural gas is recovered in tail gas from the pressure swing adsorption unit. This process is useful for refinery off-gas and partial oxidation feeds.
    Type: Application
    Filed: August 23, 2018
    Publication date: June 27, 2019
    Inventor: Bradley P. Russell
  • Publication number: 20180036671
    Abstract: Process and apparatuses for purifying a feed stream containing CO2 and predominantly hydrogen are provided. In an embodiment, the process includes passing the feed stream through a multilayer adsorbent bed comprising a first adsorbent section, a second adsorbent section downstream from the first adsorbent section and a third adsorbent section downstream from the second adsorbent section. The first adsorbent section comprises an activated carbon layer, the second adsorbent section comprises a layer of molecular sieve of the faujasite structure type with a Si/Al atomic ratio of from 1.5 to 8.0 and the third adsorbent section comprises a layer of molecular sieve of the faujasite structure type with a Si/Al atomic ratio of from 1.0 to 1.5. At least one of N2, CO2, CH4 and CO is adsorbed from the feed stream and a purified hydrogen product is recovered from the multilayer adsorbent bed.
    Type: Application
    Filed: October 18, 2017
    Publication date: February 8, 2018
    Inventors: Bradley P. Russell, Kirit M. Patel, Henry Rastelli