Patents by Inventor Scott J. Weigel

Scott J. Weigel 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: 20200290027
    Abstract: Methods are provided for formulation of catalysts with improved catalyst exposure lifetimes under oxygenate conversion conditions. In various additional aspects, methods are described for performing oxygenate conversion reactions using such catalysts with improved catalyst exposure lifetimes. The catalyst formulation methods can include formulation of oxygenate conversion catalysts with binders that are selected from binders having a surface area of roughly 250 m2/g or less, or 200 m2/g or less. In various aspects, during formulation, a weak base can be added to the zeotype crystals, to the binder material, or to the mixture of the zeotype and the binder. It has been unexpectedly discovered that addition of a weak base, so that the weak base is present in at least one component of the binder mixture prior to formulation, can result in longer catalyst exposure lifetimes under methanol conversion conditions.
    Type: Application
    Filed: March 3, 2020
    Publication date: September 17, 2020
    Inventors: Brandon J. O'Neill, Scott J. Weigel
  • Publication number: 20200255747
    Abstract: Methods are provided for performing fluid catalytic cracking (and/or other hydrothermal processing for cracking of hydrocarbons) on a feedstock containing hydrocarbons in the presence of a catalyst that includes zeolite Beta that is stabilized toward hydrothermal conditions. The hydrothermally stabilized zeolite Beta (including any of the various polymorphs) corresponds to zeolite Beta that is formed without the use of an organic structure directing agent, and that is further stabilized by addition of one or more stabilizers, such as lanthanide series elements or phosphorus.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 13, 2020
    Inventors: Allen W. Burton, Scott J. Weigel, Mobae Afeworki
  • Publication number: 20200238271
    Abstract: Methods are provided for activation of catalysts comprising low amounts of a hydrogenation metal, such as low amounts of a Group 8-10 noble metal. The amount of hydrogenation metal on the catalyst can correspond to 0.5 wt % or less (with respect to the weight of the catalyst), or 0.1 wt % or less, or 0.05 wt % or less. Prior to loading a catalyst into a reactor, the corresponding catalyst precursor can be first activated in a hydrogen-containing atmosphere containing 1.0 vppm of CO or less. The thus first-activated catalyst can be transferred to a reactor with optional exposure to oxygen during the transfer, where it can be further activated using a hydrogen-containing atmosphere containing 3.0 vppm of CO or higher, to yield a twice-activated catalyst with high performance. The catalyst can be advantageously a transalkylation catalyst or an isomerization catalyst useful for converting aromatic hydrocarbons.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 30, 2020
    Inventors: Mayank Shekhar, Paul Podsiadlo, Michel Molinier, Scott J. Weigel, Travis D. Sparks, Jocelyn A. Gilcrest, Joseph E. Gatt
  • Patent number: 10717069
    Abstract: Zn-promoted and/or Ga-promoted cracking catalysts, such as cracking catalysts comprising an MSE framework zeolite or an MFI framework zeolite can provide unexpectedly superior conversion of branched paraffins when used as part of a catalyst during reforming of a hydrocarbon fuel stream. The conversion and reforming of the hydrocarbon fuel stream can occur, for example, in an internal combustion engine. The conversion and reforming can allow for formation of higher octane compounds from the branched paraffins.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 21, 2020
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Brian M. Weiss, Gerardo J. Majano, Tilman W. Beutel, Karl G. Strohmaier, John F. Brody, Samia Ilias, Scott J. Weigel, Shamel Merchant, Eugine Choi, Robert J. Colby, Walter Weissman
  • Publication number: 20200199468
    Abstract: In a process for improving the cold flow properties of a hydrocarbon feedstock, the feedstock is contacted with a catalyst composition comprising an EMM-17 molecular sieve and a hydrogenation component under dewaxing conditions effective to produce a dewaxed product having a cloud point and/or pour point that is reduced relative to the cloud point and/or pour point of the feedstock by at least 5° C.
    Type: Application
    Filed: December 10, 2019
    Publication date: June 25, 2020
    Inventors: Joseph E. Gatt, William W. Lonergan, Scott J. Weigel, Ivy D. Johnson, Karl G. Strohmaier, Simon C. Weston
  • Publication number: 20200179913
    Abstract: Catalyst composition which comprises a first zeolite having a BEA* framework type and a second zeolite having a MOR framework type and a mesopore surface area of greater than 30 m2/g is disclosed. These catalyst compositions are used to remove catalyst poisons from untreated feed streams having one or more impurities which cause deactivation of the downstream catalysts employed in hydrocarbon conversion processes, such as those that produce mono-alkylated aromatic compounds.
    Type: Application
    Filed: February 7, 2018
    Publication date: June 11, 2020
    Inventors: Matthew S. Ide, Doron Levin, Wenyih F. Lai, Ivy D. Johnson, Scott J. Weigel, Brett T. Loveless
  • Patent number: 10677160
    Abstract: Systems and methods are provided for combined cycle power generation while reducing or mitigating emissions during power generation. Recycled exhaust gas from a power generation combustion reaction can be separated using a swing adsorption process so as to generate a high purity CO2 stream while reducing/minimizing the energy required for the separation and without having to reduce the temperature of the exhaust gas. This can allow for improved energy recovery while also generating high purity streams of carbon dioxide and nitrogen.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: June 9, 2020
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Narasimhan Sundaram, Ramesh Gupta, Hans Thomann, Hugo S. Caram, Loren K. Starcher, Franklin F. Mittricker, Simon C. Weston, Scott J. Weigel
  • Patent number: 10647633
    Abstract: A fluidized bed process for producing para-xylene via toluene and/or benzene methylation with methanol using a dual function catalyst system. A first catalyst accomplishes the toluene and/or benzene methylation and a second catalyst converts the by-products of the methylation reaction or unconverted methylating agent, improves the yields of the desired products, or a combination thereof. The inclusion of the second catalyst can suppress the C1-C5 non-aromatic fraction by over 50% and significantly enhance the formation of aromatics.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: May 12, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Nikolaos Soultanidis, Todd E. Detjen, Scott J. Weigel
  • Publication number: 20200061593
    Abstract: Processes are provided for preparing molecular sieves of framework structure MEI, TON, MRE, MWW, MFS, MOR, FAU, EMT, or MSE. The process involves preparing a synthesis mixture for the molecular sieve wherein the synthesis mixture includes a morphology modifier L selected from the group consisting of cationic surfactants having a quaternary ammonium group comprising at least one hydrocarbyl group having at least 12 carbon atoms, nonionic surfactants, anionic surfactants, sugars and combinations thereof.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Inventors: Preeti Kamakoti, Scott J. Weigel, Karl G. Strohmaier, Helge Jaensch, Marc H. Anthonis, Martine Dictus, Brita Engels, Darryl D. Lacy, Sina Sartipi, Brandon J. O'Neill
  • Publication number: 20200063042
    Abstract: Methods are provided for using a molecular sieve catalyst for dewaxing formed using a synthesis mixture comprising a morphology modifier. The catalyst may be used, for example, for production of a lubricant base stock. For example, ZSM-48 crystals formed using the morphology modifier (and/or formulated catalysts made using such crystals) can have an increased activity and/or can provide an improved yield during catalytic dewaxing of lubricant base stocks.
    Type: Application
    Filed: August 14, 2019
    Publication date: February 27, 2020
    Inventors: Preeti Kamakoti, Scott J. Weigel, Stephen J. McCarthy, Shifang L. Luo, Sina Sartipi, Martine Dictus, Marc H. Anthonis, Helge Jaensch
  • Publication number: 20200061592
    Abstract: Processes are provided for preparing molecular sieves. The process involves preparing a synthesis mixture for the molecular sieve wherein the synthesis mixture includes a morphology modifier L selected from the group consisting of nonionic surfactants, anionic surfactants, sugars and combinations thereof.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Inventors: Preeti Kamakoti, Scott J. Weigel, Karl G. Strohmaier, Helge Jaensch, Marc H. Anthonis, Martine Dictus, Brita Engels, Darryl D. Lacy, Sina Sartipi
  • Publication number: 20200062604
    Abstract: Processes are provided for preparing molecular sieves for use as catalysts. The process involves preparing a synthesis mixture for the molecular sieve wherein the synthesis mixture includes a morphology modifier which may be selected from cationic surfactants having a single quaternary ammonium group comprising at least one hydrocarbyl group having at least 12 carbon atoms, nonionic surfactants, anionic surfactants, sugars, and combinations thereof.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Inventors: Preeti Kamakoti, Scott J. Weigel, Karl G. Strohmaier, Helge Jaensch, Marc H. Anthonis, Martine Dictus, Brita Engels, Darryl D. Lacy, Sina Sartipi
  • Publication number: 20200010772
    Abstract: Systems and methods are provided for producing lubricant basestocks having a reduced or minimized aromatics content. A first processing stage can perform an initial amount of hydrotreating and/or hydrocracking. A first separation stage can then be used to remove fuels boiling range (and lower boiling range) compounds. The remaining lubricant boiling range fraction can then be exposed under hydrocracking conditions to a USY catalyst including a supported noble metal, such as Pt and/or Pd. The USY catalyst can have a desirable combination of catalyst properties, such as a unit cell size of 24.30 or less (or 24.24 or less), a silica to alumina ratio of at least 50 (or at least 80), and an alpha value of 20 or less (or 10 or less). In some aspects, the effluent from the second (hydrocracking) stage can be dewaxed without further separation. In such aspects, a portion of the dewaxed effluent can be used as a recycle quench stream to cool the hydrocracking effluent prior to entering the dewaxing reactor.
    Type: Application
    Filed: September 17, 2019
    Publication date: January 9, 2020
    Inventors: Ajit B. Dandekar, Bradley R. Fingland, Kendall S. Fruchey, Scott J. Weigel
  • Patent number: 10457877
    Abstract: Systems and methods are provided for producing lubricant basestocks having a reduced or minimized aromatics content. A first processing stage can perform an initial amount of hydrotreating and/or hydrocracking. A first separation stage can then be used to remove fuels boiling range (and lower boiling range) compounds. The remaining lubricant boiling range fraction can then be exposed under hydrocracking conditions to a USY catalyst including a supported noble metal, such as Pt and/or Pd. The USY catalyst can have a desirable combination of catalyst properties, such as a unit cell size of 24.30 or less (or 24.24 or less), a silica to alumina ratio of at least 50 (or at least 80), and an alpha value of 20 or less (or 10 or less). In some aspects, the effluent from the second (hydrocracking) stage can be dewaxed without further separation. In such aspects, a portion of the dewaxed effluent can be used as a recycle quench stream to cool the hydrocracking effluent prior to entering the dewaxing reactor.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: October 29, 2019
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ajit B. Dandekar, Bradley R. Fingland, Kendall S. Fruchey, Scott J. Weigel
  • Publication number: 20190105647
    Abstract: Catalysts including at least one microporous material (e.g., zeolite), an organosilica material binder, and at least one catalyst metal are provided herein. Methods of making the catalysts, preferably without surfactants and processes of using the catalysts, e.g., for aromatic hydrogenation, are also provided herein.
    Type: Application
    Filed: December 7, 2018
    Publication date: April 11, 2019
    Inventors: Paul Podsiadlo, Quanchang Li, David C. Calabro, Kiara M. Benitez, Machteld M.W. Mertens, Scott J. Weigel, Doron Levin, Randall D. Partridge
  • Publication number: 20190078027
    Abstract: Systems and methods are provided for upgrading a heavy cracked feedstock in a single reaction stage under fixed bed hydroprocessing conditions, including exposing the feedstock to a first bulk or supported mixed metal catalyst comprising Ni and Mo; exposing the feedstock to a second bulk or supported mixed metal catalyst comprising Ni and W; and exposing the feedstock to a third catalyst comprising a zeolite-based hydrocracking catalyst.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 14, 2019
    Inventors: Mark A. Deimund, Samia Ilias, Randolph J. Smiley, Ajit B. Dandekar, Scott J. Weigel, Darryl D. Lacy
  • Patent number: 10226319
    Abstract: A method for reducing the level of occluded alkali metal cations from an MSE-framework type molecular sieve comprises either (a) contacting the molecular sieve with a solution containing ammonium ions at a temperature of at least about 50° C. to ammonium-exchange at least part of the occluded potassium ions or (b) contacting the molecular sieve with steam at a temperature of at least about 300° C. and then subjecting the steamed molecular sieve to ammonium exchange.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: March 12, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING
    Inventors: Allen W. Burton, Karl G. Strohmaier, Scott J. Weigel
  • Publication number: 20190039968
    Abstract: A fluidized bed process for producing para-xylene via toluene and/or benzene methylation with methanol using a dual function catalyst system. A first catalyst accomplishes the toluene and/or benzene methylation and a second catalyst converts the by-products of the methylation reaction or unconverted methylating agent, improves the yields of the desired products, or a combination thereof. The inclusion of the second catalyst can suppress the C1-C5 non-aromatic fraction by over 50% and significantly enhance the formation of aromatics.
    Type: Application
    Filed: January 27, 2017
    Publication date: February 7, 2019
    Inventors: Nikolaos Soultanidis, Todd E. Detjen, Scott J. Weigel
  • Patent number: 10195600
    Abstract: Catalysts including at least one microporous material (e.g., zeolite), an organosilica material binder, and at least one catalyst metal are provided herein. Methods of making the catalysts, preferably without surfactants and processes of using the catalysts, e.g., for aromatic hydrogenation, are also provided herein.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: February 5, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Paul Podsiadlo, Quanchang Li, David C. Calabro, Kiara M. Benitez, Machteld M. W. Mertens, Scott J. Weigel, Doron Levin, Randall D. Partridge
  • Patent number: 10022700
    Abstract: Methods of preparing organosilica materials, which are a polymer comprising of at least one independent cyclic polyurea monomer of Formula wherein each R1 is a Z1OZ2Z3SiZ4 group, wherein each Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer unit; each Z2 and Z3 independently represent a hydroxyl group, a C1-C4 alkyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another monomer unit; and each Z4 represents a C1-C8 alkylene group bonded to a nitrogen atom of the cyclic polyurea are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal, etc., are also provided herein.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: July 17, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Paul Podsiadlo, Quanchang Li, David Charles Calabro, Lei Zhang, Kiara M. Benitez, Himanshu Gupta, Xiaochun Xu, Scott J. Weigel, Darryl Donald Lacy, Bal Kaul, James William Gleeson, Wenyih Frank Lai, Mobae Afeworki, Simon Christopher Weston, David A. Griffin, Meghan Nines