Patents by Inventor Michael O. Nutt

Michael O. Nutt 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: 10544071
    Abstract: The process to recover heat in oxidative dehydrogenation of butene to butadiene is presented. The process utilizes heat recovered in oxidative dehydrogenation of butene to butadiene to generate steam. The process utilizes the circulated water stream generated in oxidative dehydrogenation of butene to butadiene for steam generation. A feedstream comprising butene is mixed with steam and preheated air at the inlet of the oxidative dehydrogenation reactor.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: January 28, 2020
    Assignees: UOP LLC, TPC Group LLC
    Inventors: John J. Senetar, Joseph G. Duff, Jillian M. Horn, Clifford A. Maat, Michael O. Nutt
  • Patent number: 10538466
    Abstract: A process is presented for the production of butadienes. The process includes the separation of oxygenates from the product stream from an oxidative dehydrogenation reactor. The process includes quenching the product stream and solvent and oxygenates from the product stream. The oxygenates are stripped from the solvent with an inert gas to reduce the energy consumption of the process, and the solvent is recycled and reused in the process.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: January 21, 2020
    Assignees: UOP LLC, TPC Group, LLC
    Inventors: John J. Senetar, Jeannie M. Blommel, Charles P. Luebke, Dana K. Sullivan, Joseph G. Duff, Jillian M. Horn, Clifford A. Maat, Michael O. Nutt
  • Publication number: 20180258015
    Abstract: A process is presented for the production of butadienes. The process includes the separation of oxygenates from the product stream from an oxidative dehydrogenation reactor. The process includes quenching the product stream and solvent and oxygenates from the product stream. The oxygenates are stripped from the solvent with an inert gas to reduce the energy consumption of the process, and the solvent is recycled and reused in the process.
    Type: Application
    Filed: May 2, 2018
    Publication date: September 13, 2018
    Inventors: John J. Senetar, Jeannie M. Blommel, Charles P. Luebke, Dana K. Sullivan, Joseph G. Duff, Jillian M. Horn, Clifford A. Maat, Michael O. Nutt
  • Publication number: 20180251412
    Abstract: The process to recover heat in oxidative dehydrogenation of butene to butadiene is presented. The process utilizes heat recovered in oxidative dehydrogenation of butene to butadiene to generate steam. The process utilizes the circulated water stream generated in oxidative dehydrogenation of butene to butadiene for steam generation. A feedstream comprising butene is mixed with steam and preheated air at the inlet of the oxidative dehydrogenation reactor.
    Type: Application
    Filed: May 2, 2018
    Publication date: September 6, 2018
    Inventors: John J. Senetar, Joseph G. Duff, Jillian M. Horn, Clifford A. Maat, Michael O. Nutt
  • Patent number: 10035136
    Abstract: The present invention discloses a process to treat a ferrite based catalyst useful in the oxidative dehydrogenation of monololefins and diolefins which process includes a preheat step prior to use of the catalyst in the OXO-D reactor. The catalyst is preferably a zinc ferrite catalyst for the production of butadiene. It has been observed that substantially no nitrogen oxide emissions result from the use of this treated catalyst in the reactor unit during the oxidative dehydrogenation reaction.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 31, 2018
    Assignee: TPC Group LLC
    Inventors: Joseph G. Duff, Jillian M. Horn, Michael O. Nutt, George S. Pappas
  • Patent number: 10035740
    Abstract: A method of oxidatively dehydrogenating a dehydrogenation reactant includes providing a first gaseous feed stream to a first adiabatic, catalytic reaction zone with less than a stoichiometric amount of oxygen and superheated steam, oxidatively dehydrogenating dehydrogenation reactant in said first adiabatic, catalytic reaction zone and subsequently cooling the effluent, adding additional oxygen and reacting the effluent stream in at least one subsequent adiabatic reaction zone. The dehydrogenation system enables higher conversion and yield per pass and in some cases greatly reduces steam usage and energy costs. In a preferred integrated process, ethylene is converted to n-butene which is then oxidatively dehydrogenated to butadiene.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: July 31, 2018
    Assignee: TPC Group LLC
    Inventors: Clifford Alan Maat, Joseph G. Duff, Liana Caciula, Michael O. Nutt, Robert Z. Confair, Mark P. Kaminsky, Jillian M. Horn, Gus K. Georgeton
  • Patent number: 9902669
    Abstract: Oxidative dehydrogenation includes: (a) providing a gaseous feed stream to a catalytic reactor, the feed stream comprising a dehydrogenation reactant, oxygen, superheated steam, hydrocarbon moderator gas and optionally nitrogen, wherein the molar ratio of moderator gas to oxygen in feed stream is typically from 4:1 to 1:1 and the molar ratio of oxygen to nitrogen in the feed stream is at least 2; (b) oxidatively dehydrogenating the reactant in the reactor to provide a dehydrogenated product enriched effluent product stream; and (c) recovering dehydrogenated product from the effluent product stream. One preferred embodiment is a process for making butadiene including dimerizing ethylene to n-butene in a homogeneous reaction medium to provide a hydrocarbonaceous n-butene rich feed stream and oxidatively dehydrogenating the n-butene so formed.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: February 27, 2018
    Assignee: TPC GROUP LLC
    Inventors: Liana Caciula, Clifford A. Maat, Mark P. Kaminsky, Michael O. Nutt, Jillian M. Horn, Joseph G. Duff
  • Patent number: 9617363
    Abstract: A method of making a low-fluoride reactive PIB composition includes (a) providing a modified C4 feedstock by way of blending a mixed C4 feedstock with a second feedstock having a lower LB/IsoB ratio; or providing a C4 feedstock with an LB/IsoB index of less than 10%; (b) feeding the modified C4 feedstock or the C4 feedstock with an LB/IsoB index of less than 10% to a CSTR with a homogeneous catalyst comprising BF3 and a modifier selected from alcohols, ethers and mixtures thereof; (c) polymerizing the modified C4 feedstock or the C4 feedstock with an LB/IsoB index of less than 10% in the reactor while maintaining the reactor at a temperature above ?15° C. and utilizing a residence time less than 45 minutes to produce a crude PIB composition in a polymerization mixture; and (d) recovering a purified PIB composition from the polymerization mixture having a molecular weight, Mn, from 250 to 5000 Daltons and an alpha vinylidene content of at least 50 mol %.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: April 11, 2017
    Assignee: TPC GROUP LLC
    Inventors: Rajeev Kumar, André M Gobin, Wayne Ouellette, Michael O. Nutt, Leonard M. Czupski, Peggy J. Macatangay
  • Patent number: 9617366
    Abstract: A method of making a low-fluoride reactive PIB composition includes in one embodiment: a) providing an isobutylene-enriched C4 feedstock by way of blending a first mixed C4 feedstock with a second feedstock having a lower LB/IsoB index; (b) feeding the isobutylene-enriched C4 feedstock to a polymerization reactor with a catalyst complex comprising BF3 and a modifier selected from alcohols, ethers and mixtures thereof; (c) polymerizing the isobutylene-enriched C4 feedstock in the reactor while maintaining the reactor at a temperature above ?40° C. and most preferably above ?15° C. and utilizing a residence time less than 45 minutes to produce a crude PIB composition in a polymerization mixture; and (d) recovering a purified PIB composition from the polymerization mixture having a molecular weight, Mn, from 250 to 5000 Daltons and an alpha vinylidene content of at least 50 mol %.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: April 11, 2017
    Assignee: TPC GROUP LLC
    Inventors: André M. Gobin, Rajeev Kumar, Wayne Ouellette, Michael O. Nutt, Leonard M. Czupski, Peggy J. Macatangay
  • Patent number: 9567282
    Abstract: A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: February 14, 2017
    Assignee: CELANESE INTERNATIONAL CORPORATION
    Inventors: G. Paull Torrence, Brian W. Hokkanen, Michael O. Nutt, Tianshu Pan, Ronald D. Shaver
  • Publication number: 20170036195
    Abstract: The present invention discloses a process to treat a ferrite based catalyst useful in the oxidative dehydrogenation of monololefins and diolefins which process includes a preheat step prior to use of the catalyst in the OXO-D reactor. The catalyst is preferably a zinc ferrite catalyst for the production of butadiene. It has been observed that substantially no nitrogen oxide emissions result from the use of this treated catalyst in the reactor unit during the oxidative dehydrogenation reaction.
    Type: Application
    Filed: March 25, 2015
    Publication date: February 9, 2017
    Inventors: Joseph G. Duff, Jillian M. Horn, Michael O. Nutt, George S. Pappas
  • Patent number: 9505682
    Abstract: A method of producing butadiene includes: (1) dimerizing ethylene to butene followed by (2) oxidatively dehydrogenating the butene to butadiene and (3) recovering the butadiene by (i) absorbing the product with a hydrocarbon absorber oil and (ii) stripping a crude product stream from the absorber oil. The absorber oil is selected so as to be effective to sequester ethylene dimerization-derived impurities from the system.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: November 29, 2016
    Assignee: TPC GROUP LLC
    Inventors: Joseph G. Duff, Clifford A. Maat, Michael O. Nutt, Mark P Kaminsky
  • Publication number: 20160023963
    Abstract: A method of oxidatively dehydrogenating a dehydrogenation reactant includes providing a first gaseous feed stream to a first adiabatic, catalytic reaction zone with less than a stoichiometric amount of oxygen and superheated steam, oxidatively dehydrogenating dehydrogenation reactant in said first adiabatic, catalytic reaction zone and subsequently cooling the effluent, adding additional oxygen and reacting the effluent stream in at least one subsequent adiabatic reaction zone. The deydrogenation system enables higher conversion and yield per pass and in some cases greatly reduces steam usage and energy costs. In a preferred integrated process, ethylene is converted to n-butene which is then oxidatively dehydrogenated to butadiene.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 28, 2016
    Inventors: Clifford Alan Maat, Joseph G. Duff, Liana Caciula, Michael O. Nutt, Robert Z. Confair, Mark P. Kaminsky, Jillian M. Horn, Gus K. Georgeton
  • Publication number: 20160002126
    Abstract: Oxidative dehydrogenation includes: (a) providing a gaseous feed stream to a catalytic reactor, the feed stream comprising a dehydrogenation reactant, oxygen, superheated steam, hydrocarbon moderator gas and optionally nitrogen, wherein the molar ratio of moderator gas to oxygen in feed stream is typically from 4:1 to 1:1 and the molar ratio of oxygen to nitrogen in the feed stream is at least 2; (b) oxidatively dehydrogenating the reactant in the reactor to provide a dehydrogenated product enriched effluent product stream; and (c) recovering dehydrogenated product from the effluent product stream. One preferred embodiment is a process for making butadiene including dimerizing ethylene to n-butene in a homogeneous reaction medium to provide a hydrocarbonaceous n-butene rich feed stream and oxidatively dehydrogenating the n-butene so formed.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 7, 2016
    Applicant: TPC Group LLC
    Inventors: Liana Caciula, Clifford A. Maat, Mark P. Kaminsky, Michael O. Nutt, Jillian M. Horn, Joseph G. Duff
  • Publication number: 20150018589
    Abstract: A method of producing butadiene includes: (1) dimerizing ethylene to butene followed by (2) oxidatively dehydrogenating the butene to butadiene and (3) recovering the butadiene by (i) absorbing the product with a hydrocarbon absorber oil and (ii) stripping a crude product stream from the absorber oil. The absorber oil is selected so as to be effective to sequester ethylene dimerization-derived impurities from the system.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 15, 2015
    Inventors: Joseph G. Duff, Clifford A. Maat, Michael O. Nutt, Mark P. Kaminsky
  • Patent number: 8394988
    Abstract: A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: March 12, 2013
    Assignee: Celanese International Corporation
    Inventors: G. Paull Torrence, Brian W. Hokkanen, Michael O. Nutt, Tianshu Pan, Ronald David Shaver
  • Publication number: 20120078012
    Abstract: A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 29, 2012
    Applicant: Celanese International Corporation
    Inventors: G. Paull Torrence, Brian W. Hokkanen, Michael O. Nutt, Tianshu Pan, Ronald David Shaver
  • Patent number: 5491263
    Abstract: A process is disclosed for producing a substituted ethylenediamine, the process comprising reacting an oxazolidinone with a secondary amine or an alkanolamine. The process includes, in one aspect, reacting precursors of the oxazolidinone in situ.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: February 13, 1996
    Assignee: The Dow Chemical Company
    Inventors: Peter C. Rooney, Michael O. Nutt
  • Patent number: 4500717
    Abstract: The invention is a process for the preparation of 2-oxazolidinones which comprises contacting a 2-hydroxyalkyl carbamate with an alkylene oxide or alkylene carbonate in the presence of a catalytic amount of a quaternary ammonium halide, quaternary phosphonium halide, a group I metal carbonate, hydroxide, oxide or halide, or a group II metal carbonate, hydroxide, oxide or halide under conditions such that a 2-oxazolidinone is prepared.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: February 19, 1985
    Assignee: The Dow Chemical Company
    Inventors: Frank T. Cook, Michael O. Nutt, Hsin H. Hsieh
  • Patent number: 4304724
    Abstract: The present invention provides a process for making anthraquinone by the cyclization reaction of orthobenzoylbenzoic acid. The process uses as a catalyst a cation-exchange resin formed from a polymer with a polytetrafluoroethylene backbone and sulfonic-acid sidechains.
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: December 8, 1981
    Assignee: The Dow Chemical Company
    Inventor: Michael O. Nutt