Patents by Inventor Gregory J. Gajda

Gregory J. Gajda 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: 10814315
    Abstract: A process is presented for the management of sulfur on a catalyst. The catalyst is a dehydrogenation catalyst, and sulfur accumulates during the dehydrogenation process. Sulfur compounds are stripped from the spent catalyst and the catalyst is cooled before the regeneration process. The process includes controlling the amount of sulfur that needs to be removed from the catalyst before regeneration.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 27, 2020
    Assignee: UOP LLC
    Inventors: Wolfgang A. Spieker, Adam D. Ballard, Gregory J. Gajda, J. W. Adriaan Sachtler
  • Patent number: 10807075
    Abstract: A process is presented for the management of sulfur on a catalyst. The catalyst is a dehydrogenation catalyst, and sulfur accumulates during the dehydrogenation process. Sulfur compounds are stripped from the spent catalyst and the catalyst is cooled before the regeneration process. The process includes controlling the amount of sulfur that needs to be removed from the catalyst before regeneration.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 20, 2020
    Assignee: UOP LLC
    Inventors: Wolfgang A. Spieker, Adam D. Ballard, Gregory J. Gajda, J. W. Adriaan Sachtler
  • Patent number: 10799858
    Abstract: A process is presented for the treatment of spent catalyst to manage sulfur-containing compounds on the catalyst. The catalyst may be a dehydrogenation catalyst, where sulfur accumulates during a dehydrogenation process. Sulfur compounds are stripped from the spent catalyst and the catalyst may be cooled before a regeneration step. The process includes controlling removal of sulfur compounds from the spent catalyst before regeneration.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 13, 2020
    Assignee: UOP LLC
    Inventors: Wolfgang A. Spieker, Gregory J. Gajda, J. W. Adriaan Sachtler, Kristoffer E. Popp
  • Patent number: 10472577
    Abstract: A catalyst composition comprising a support comprising a mixture of amorphous silica-alumina and non-zeolitic alumina comprising no more than 75 wt % amorphous silica-alumina and having a ratio of moles of silicon to moles of aluminum in the range of about 0.05 to about 0.50. A first hydrogenation metal comprising platinum, a second hydrogenation metal from Group VIIB or Group VIII of the Periodic Table other than platinum and an optional third metal from Group IA of the Periodic Table may be deposited on the support. The ratio of moles of silicon to the moles of the first hydrogenation metal, the second hydrogenation metal and the optional third metal on the support may be between about 15 and about 75.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: November 12, 2019
    Assignee: UOP LLC
    Inventors: Antoine Negiz, Shurong Yang, Richard R. Willis, Gregory J. Gajda, Suheil F. Abdo, Lisa M. Knight, Hayim Abrevaya, John A. Petri
  • Publication number: 20190275508
    Abstract: A process is presented for the treatment of spent catalyst to manage sulfur-containing compounds on the catalyst. The catalyst may be a dehydrogenation catalyst, where sulfur accumulates during a dehydrogenation process. Sulfur compounds are stripped from the spent catalyst and the catalyst may be cooled before a regeneration step. The process includes controlling removal of sulfur compounds from the spent catalyst before regeneration.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 12, 2019
    Inventors: Wolfgang A. Spieker, Gregory J. Gajda, J. W. Adriaan Sachtler, Kristoffer E. Popp
  • Patent number: 10336690
    Abstract: Methods for purifying an acetonitrile waste stream are provided. An exemplary method for purifying an acetonitrile waste stream includes generating an acetonitrile waste stream during oligonucleotide synthesis and fractionating the acetonitrile waste stream to produce a single overhead fraction. The method includes condensing the single overhead fraction to produce a condensed single overhead fraction and contacting the condensed single overhead fraction with an adsorbent material to produce an acetonitrile stream that comprises an amount of an impurity that is reduced relative to the acetonitrile waste stream.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: July 2, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Gregory J. Gajda, Mark G. Riley, Venkatraman Mohan, Sandra M. Lorenz, Alan P. Cohen
  • Publication number: 20180371335
    Abstract: A catalyst composition comprising a support comprising a mixture of amorphous silica-alumina and non-zeolitic alumina comprising no more than 75 wt % amorphous silica-alumina and having a ratio of moles of silicon to moles of aluminum in the range of about 0.05 to about 0.50. A first hydrogenation metal comprising platinum, a second hydrogenation metal from Group VIIB or Group VIII of the Periodic Table other than platinum and an optional third metal from Group IA of the Periodic Table may be deposited on the support. The ratio of moles of silicon to the moles of the first hydrogenation metal, the second hydrogenation metal and the optional third metal on the support may be between about 15 and about 75.
    Type: Application
    Filed: June 22, 2017
    Publication date: December 27, 2018
    Inventors: Antoine Negiz, Shurong Yang, Richard R. Willis, Gregory J. Gajda, Suheil F. Abdo, Lisa M. Knight, Hayim Abrevaya
  • Publication number: 20180169631
    Abstract: A process is presented for the management of sulfur on a catalyst. The catalyst is a dehydrogenation catalyst, and sulfur accumulates during the dehydrogenation process. Sulfur compounds are stripped from the spent catalyst and the catalyst is cooled before the regeneration process. The process includes controlling the amount of sulfur that needs to be removed from the catalyst before regeneration.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 21, 2018
    Inventors: Wolfgang A. Spieker, Adam D. Ballard, Gregory J. Gajda, J. W. Adriaan Sachtler
  • Publication number: 20180169630
    Abstract: A process is presented for the management of sulfur on a catalyst. The catalyst is a dehydrogenation catalyst, and sulfur accumulates during the dehydrogenation process. Sulfur compounds are stripped from the spent catalyst and the catalyst is cooled before the regeneration process. The process includes controlling the amount of sulfur that needs to be removed from the catalyst before regeneration.
    Type: Application
    Filed: December 20, 2017
    Publication date: June 21, 2018
    Inventors: Wolfgang A. Spieker, Adam D. Ballard, Gregory J. Gajda, J. W. Adriaan Sachtler
  • Patent number: 9896631
    Abstract: Methods are provided for producing hydrocarbons. A method for producing hydrocarbons may include a method of removing impurities from a hydrocarbon stream using a strong base resin. The strong base resin absorbs at least a portion of the impurities from the hydrocarbon stream to provide a purified hydrocarbon stream. Further, the method for producing hydrocarbons may include feeding the purified hydrocarbon stream to a reaction zone comprising a catalyst to form a reaction zone effluent stream.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: February 20, 2018
    Assignee: UOP LLC
    Inventors: Gregory J. Gajda, Bart Dziabala, Belma Demirel, Thomas Pereira
  • Publication number: 20160168057
    Abstract: Methods are provided for producing hydrocarbons. A method for producing hydrocarbons may include a method of removing impurities from a hydrocarbon stream using a strong base resin. The strong base resin absorbs at least a portion of the impurities from the hydrocarbon stream to provide a purified hydrocarbon stream. Further, the method for producing hydrocarbons may include feeding the purified hydrocarbon stream to a reaction zone comprising a catalyst to form a reaction zone effluent stream.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 16, 2016
    Inventors: Gregory J. Gajda, Bart Dziabala, Belma Demirel, Thomas Pereira
  • Patent number: 9309170
    Abstract: This invention is drawn to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene which contain a substantial concentration of nonaromatics using a catalyst system which features the ability to both convert nonaromatics and to obtain an improved yield of para-xylene from the mixture relative to processes of the known art.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: April 12, 2016
    Assignee: UOP LLC
    Inventors: Paula L. Bogdan, James A. Johnson, Gregory J. Gajda, Patrick C. Whitchurch, Stanley J. Frey, Wolfgang A. Spieker
  • Patent number: 9174892
    Abstract: One exemplary embodiment can be a process for increasing a mole ratio of methyl to phenyl of one or more aromatic compounds in a feed. The process can include reacting an effective amount of one or more aromatic compounds and an effective amount of one or more aromatic methylating agents to form a product having a mole ratio of methyl to phenyl of at least about 0.1:1 greater than the feed.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: November 3, 2015
    Assignee: UOP LLC
    Inventors: Antoine Negiz, Edwin P. Boldingh, Gregory J. Gajda, Dean E. Rende, James E. Rekoske, David E. Mackowiak, Paul T. Barger
  • Publication number: 20150239828
    Abstract: Methods and systems for purifying an acetonitrile waste stream and methods for synthesizing an oligonucleotide using a purified acetonitrile waste stream are provided. An exemplary method for purifying an acetonitrile waste stream includes providing an acetonitrile waste stream and fractionating the acetonitrile waste stream to produce a single overhead fraction. The method includes condensing the single overhead fraction to produce a condensed single overhead fraction and contacting the condensed single overhead fraction with an adsorbent to produce an acetonitrile stream that comprises an amount of at least one impurity that is reduced relative to the acetonitrile waste stream.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 27, 2015
    Inventors: Gregory J. Gajda, Mark G. Riley, Venkatraman Mohan, Sandra M. Lorenz, Alan P. Cohen
  • Publication number: 20150231611
    Abstract: Methods and apparatuses are provided for producing hydrocarbons. A method includes contacting an aromatic rich feed stream including diolefins with a catalyst in the presence of hydrogen to react the diolefins with the hydrogen to produce mono-olefins. A deposit forms on the catalyst during reaction. The deposit is removed from the catalyst with a solvent, where the solvent includes about 50 mass percent or more aromatic compounds.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 20, 2015
    Applicant: UOP LLC
    Inventors: Christopher Lepine Standing, Gregory J. Gajda, Bart Dziabala, Robert James Schmidt
  • Patent number: 9102881
    Abstract: A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and passing each feedstream to separation reformers. The reformers are operated under different conditions to utilize the differences in the reaction properties of the different hydrocarbon components. The process further includes passing one or more catalyst streams through the reformers to optimize selectivity and conversions.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: August 11, 2015
    Assignee: UOP LLC
    Inventor: Gregory J. Gajda
  • Patent number: 9024099
    Abstract: A process is presented for the increasing the yields of aromatics from reforming a hydrocarbon feedstream. The process includes splitting a naphtha feedstream into a light hydrocarbon stream, and a heavier stream having a relatively rich concentration of naphthenes. The heavy stream is reformed to convert the naphthenes to aromatics and the resulting product stream is further reformed with the light hydrocarbon stream to increase the aromatics yields. The catalyst is passed through the reactors in a sequential manner.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: May 5, 2015
    Assignee: UOP LLC
    Inventors: Mark D. Moser, Kurt M. VandenBussche, David A. Wegerer, Gregory J. Gajda
  • Patent number: 8926830
    Abstract: Processes for producing aromatics from a naphtha feedstream are provided. An exemplary process includes passing the feedstream to a fractionation unit, thereby generating a first stream including hydrocarbons having less than 8 carbon atoms and a second stream including hydrocarbons having at least 8 carbon atoms. The first stream is passed to a first reformer operated at a first set of reaction conditions to generate a first product stream. The first set of reaction conditions includes a first temperature and a first pressure. The second stream is passed to a second reformer operated at a second set of reaction conditions to generate a second product stream. The second set of reaction conditions includes a second temperature and a second pressure. The first pressure is lower than the second pressure.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: January 6, 2015
    Assignee: UOP LLC
    Inventors: Gregory J. Gajda, Mary J. Wier, Clayton Colin Sadler
  • Patent number: 8926829
    Abstract: A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and passing each feedstream to separation reformers. The reformers are operated under different conditions to utilize the differences in the reaction properties of the different hydrocarbon components. The process utilizes a common catalyst, and common downstream processes for recovering the desired aromatic compounds generated.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 6, 2015
    Assignee: UOP LLC
    Inventors: Manuela Serban, Antoine Negiz, Kurt M. VandenBussche, Mark D. Moser, David A. Wegerer, Gregory J. Gajda
  • Patent number: 8906226
    Abstract: A process for reforming a hydrocarbon stream is presented. The process involves splitting a naphtha feedstream to at least two feedstreams and passing each feedstream to separation reformers. The reformers are operated under different conditions to utilize the differences in the reaction properties of the different hydrocarbon components. The process utilizes a common catalyst, and common downstream processes for recovering the desired aromatic compounds generated.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: December 9, 2014
    Assignee: UOP LLC
    Inventors: Gregory J. Gajda, Kurt M. VandenBussche, Mark D. Moser, David A. Wegerer