Nitrogen Containing Patents (Class 423/704)
  • Patent number: 10889502
    Abstract: The invention concerns a process for preparing a copper-comprising microporous aluminosilicate material with AFX structure, comprising at least the steps of mixing, in an aqueous medium, at least one aluminum source, at least one silicon source, at least one copper source, a TETA or TEPA organic complexing agent and a DABCO-C4 structuring agent, in order to obtain a gel, and hydrothermal treatment of said gel with stirring in order to obtain crystallization of said copper-comprising microporous aluminosilicate material with AFX structure.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: January 12, 2021
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: David Berthout, Bogdan Harbuzaru, Eric Llido
  • Patent number: 10850265
    Abstract: Described is a selective catalytic reduction catalyst comprising a zeolitic framework material of silicon and aluminum atoms, wherein a fraction of the silicon atoms are isomorphously substituted with a tetravalent metal. The catalyst can include a promoter metal such that the catalyst effectively promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150 to 650° C. In another aspect, described is a selective catalytic reduction composite comprising an SCR catalyst material and an ammonia storage material comprising a transition metal having an oxidation state of IV. The SCR catalyst material promotes the reaction of ammonia with nitrogen oxides to form nitrogen and H2O selectively over a temperature range of 150° C. to 600° C., and the SCR catalyst material is effective to store ammonia at temperatures of 400° C. and above.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: December 1, 2020
    Assignee: BASF Corporation
    Inventors: Xiaofan Yang, John K. Hochmuth, Wen-Mei Xue, Xiaoming Wang, Matthew Tyler Caudle, Ahmad Moini, Dustin O. Hollobaugh, Qi Fu, Michael Breen
  • Patent number: 10822242
    Abstract: The present application provides a ZSM-35 molecular sieve and a preparation method thereof. The ZSM-35 molecular sieve is an aggregated ZSM-35 molecular sieve having a hierarchical macro-meso-microporous pore structure. Raw materials for the preparation method do not include an organic template agent and a crystal seed, and the preparation method includes the following steps: preparing a reactant gel where a molar ratio of SiO2, Al2O3, Na2O, K2O, oxygen-containing acid radical and H2O is (20-40):1.0:(1.5-2.0):(4.0-6.5):(1.0-4.0):(600-1200); sequentially performing an aging treatment and a crystallization treatment on the reactant gel, washing and drying a resulting synthetic product. The ZSM-35 molecular sieve provided by the present application may be obtained by synthesizing without using an organic template agent and crystal seed, and because it has a hierarchical pore structure, it is favorable for material diffusion and mass transfer.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: November 3, 2020
    Assignee: CHINA UNIVERSITY OF PETROLEUM—BEIJING
    Inventors: Haiyan Liu, Tao Zheng, Zhichang Liu, Xianghai Meng, Rui Zhang, Chunming Xu
  • Patent number: 10583426
    Abstract: A catalyst and process for the production of methyl acetate by contacting dimethyl ether and carbon monoxide in the presence of a catalyst which is a zeolite of micropore volume of 0.01 ml/g or less.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: March 10, 2020
    Assignee: BP Chemicals Limited
    Inventor: John Glenn Sunley
  • Patent number: 10486145
    Abstract: The present invention relates to a process for the manufacture of a copper containing small-pore zeolite which comprises?preparing a reaction mixture comprising a zeolite of the faujasite framework type, Cu-tetraethylenepentamine (Cu-TEPA) and at least one compound M(OH)x, which does not comprise the tetraethylammonium cation and?heating the reaction mixture to form a copper containing small-pore zeolite.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: November 26, 2019
    Assignee: Umicore AG & Co. KG
    Inventors: Johan Adriaan Martens, Sreeprasanth Pulinthanathu Sree, Stef Jules Peter Kerkhofs, Elke Jane June Verheyen, Frank-Walter Schuetze
  • Patent number: 10427140
    Abstract: The present invention refers to a microporous crystalline material, to the method for the production thereof and to the use of same, the material having a composition: xX2O3:zZO2:yYO2 in which: X is a trivalent element such as Al, B, Fe, In, Ga, Cr, or mixtures thereof, where (y+z)/x can have values of between 9 and infinity; Z corresponds to a tetravalent element selected from Si, Ge or mixtures thereof; and Y corresponds to a tetravalent element such as Ti, Sn, Zr, V or mixtures thereof, where z/y can have values of between 10 and infinity.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: October 1, 2019
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Avelino Corma Canos, Fernando Rey Garcia, Manuel Hernandez Rodriguez, Jose Luis Jorda Moret
  • Patent number: 10266417
    Abstract: The present invention relates to a process for the preparation of a zeolitic material comprising the steps of: (1) providing a mixture comprising one or more sources for YO2 and one or more alkenyltrialkylammonium cation R1R2R3R4N+-containing compounds as structure directing agent; and (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material; wherein Y is a tetravalent element, and wherein R1, R2, and R3 independently from one another stand for alkyl; and R4 stands for alkenyl, as well as to zeolitic materials which may be obtained according to the inventive process and to their use.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: April 23, 2019
    Assignee: BASF SE
    Inventors: Mathias Feyen, Ulrich Müller, Andrei-Nicolae Parvulescu, Bernd Bastian Schaack, Sebastian Ahrens, Dirk Gerhard, Sunghee Son, Gabriele Iffland, Bianca Seelig
  • Patent number: 10221073
    Abstract: A novel synthetic crystalline molecular sieve designated as SSZ-108 is disclosed. SSZ-108 may be synthesized using a structure directing agent comprising one or more of 1-butyl-1-methylpyrrolidinium cations and 1-butyl-1-methylpiperidinium cations. Molecular sieve SSZ-108 may be used in catalytic and sorptive processes.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 5, 2019
    Assignee: Chevron U.S.A. Inc.
    Inventor: Dan Xie
  • Patent number: 10213748
    Abstract: Methods for forming two-dimensional (2D) zeolite nanosheets include exposing a multi-lamellar (ML) zeolite material including an organic structure directing agent (OSDA) to a mixture including sulfuric acid and hydrogen peroxide under conditions sufficient to remove substantially all of the OSDA from the ML zeolite material; and after exposing the ML zeolite material, treating a solution containing the ML zeolite material to sonication and/or mixing under conditions sufficient to substantially exfoliate layers of the ML zeolite to obtain porous two-dimensional zeolite nanosheets that are substantially free of the OSDA. In some cases, without further treatment such as secondary growth of the zeolite coating layer, a deposit of the OSDA-free nanosheets on polymer support exhibits hydrocarbon isomer selectivity.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 26, 2019
    Assignee: Regents of the University of Minnesota
    Inventors: Michael Tsapatsis, Qiang Xiao, Han Zhang
  • Patent number: 10213776
    Abstract: STA-20, a molecular sieve having a new framework type, is described. STA-20AP (as prepared) can have an alkyl amine, such as trimethylamine, and 1,6-(1,4-diazabicyclo[2.2.2]octane) hexyl cations (from diDABCO-C6) as SDAs. A lower alkyl ammonium hydroxide, such as tetrabutylammonium hydroxide, can be used as a pH modifier for making SAPO STA-20. A calcined product, STA-20C, formed from as made STA-20 is also described. Methods of preparing STA-20, activating STA-20 by calcination, and metal containing calcined counterparts of STA-20 are described along with methods of using STA-20 and metal containing calcined counterparts of STA-20 in a variety of processes, such as treating exhaust gases and converting methanol to olefins are described.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: February 26, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: John Casci, Alessandro Turrina, Raquel Garcia Salas, Paul Anthony Wright
  • Patent number: 10150676
    Abstract: The present invention relates to new crystalline zeolite SSZ-52x prepared using a quaternary ammonium cation templating agent, for example, having the structure: wherein X? is an anion which is not detrimental to the formation of the SSZ-52x. SSZ-52x is useful as a catalyst and shows improved durability, particularly with regard to NOx conversion.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: December 11, 2018
    Assignee: Chevron U.S.A. Inc.
    Inventor: Tracy Davis
  • Patent number: 10112839
    Abstract: A method is disclosed for preparing molecular sieve SSZ-85 in the absence of a source of fluoride ions.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: October 30, 2018
    Assignee: Chevron U.S.A. Inc.
    Inventor: Stacey Ian Zones
  • Patent number: 10099932
    Abstract: A rapid synthesis method of a small-crystal-grain ZSM-5 molecular sieve, the method comprising: preparing a mixed silicon-aluminum glue solution, placing the solution in a crystallization kettle for low-temperature nucleation, enabling high-temperature crystallization growth of the solution, and obtaining a crystallization product, namely, a small-crystal-grain ZSM-5 molecular sieve, the nucleation temperature being 60-120° C., nucleation time being 1-3 hours, a crystallization growth temperature being 150-170° C., and crystallization growth time being 1-3 hours. The method is easy to operate, and has a short operation time, thus being able to complete within 6 hours; in addition, the product has uniform grain sizes, is in a mono-dispersed state, and has a high crystallization degree to a submicron degree.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: October 16, 2018
    Assignees: RESEARCH INSTITUTE OF SHAANXI YANCHANG PETROLEUM (GROUP) CO., LTD., DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Wei Zhang, Xiongfu Zhang, Dapeng Li, Ruimin Gao, Yongbin Lu, Shuqin Zhang, Mingfeng Wang, Pengju Huo, Si Li, Chengda Wang, Weiwu Xu, Yuan Zhang, Zhiling Liu, Ting Pei, Hua Zhang, Gang Chen, Haiou Liu
  • Patent number: 10081552
    Abstract: A molecular sieve having the framework structure of ZSM-5 is described comprising crystals having an external surface area in excess of 100 m2/g (as determined by the t-plot method for nitrogen physisorption) and a unique X-ray diffraction pattern.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: September 25, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Allen W. Burton, Christine E. Kliewer, Mobae Afeworki
  • Patent number: 9725328
    Abstract: Disclosed herein is a new crystalline molecular sieve designated SSZ-104, its synthesis in the presence of a structure directing agent comprising N-cyclohexylmethyl-N-ethylpyrrolidinium cations, and its use as an adsorbent and a catalyst.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: August 8, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventor: Tracy Margaret Davis
  • Patent number: 9708192
    Abstract: A method is disclosed for preparing pure phase aluminosilicate molecular sieves having the CHA framework type using a trimethylphenylammonium cation as a structure directing agent.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: July 18, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Dan Xie, Stacey Ian Zones
  • Patent number: 9700879
    Abstract: A method for preparing molecular sieves with a Linde Type A (LTA) topology structure, and molecular sieves obtained thereby are described wherein a structure directing agent comprising a triquaternary cation is contacted with a source of a first oxide of a first tetravalent element or a source of a first oxide of a trivalent element; and a source of an oxide of a pentavalent elements.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 11, 2017
    Assignee: California Institute of Technology
    Inventors: Joel Schmidt, Mark E Davis
  • Patent number: 9186659
    Abstract: This invention relates a process for preparing MTT zeolites which process includes the preparation of a sol-gel from an aluminate solution, mixing a structure directing agent with the sol-gel to form a structure directing mixture, mixing a silica with the structure directing mixture to form a reaction mixture, heating the reaction mixture in a microwave reactor to form an initial zeolite, and removing the structure directing agent to form the MTT zeolite. The invention also relates to MTT zeolites produced by the process, including ZSM-23 zeolites, as well as zeolite membranes, coating and catalysts.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: November 17, 2015
    Assignees: King Fahd University of Petroleum and Minerals, King Abdulaziz City for Science and Technology
    Inventors: Oki Muraza, Idris Bakare, Adnan Al Amer, Zain Yamani
  • Publication number: 20150137392
    Abstract: ZSM-18 is synthesized from a mixture comprising water, a source of an oxide of a tetravalent element (Y), a source of an oxide of a trivalent element (X), a source of a first cation Q selected from either butamethonium cations or N,N,N,-trimethyl-N-butylammonium cations and a source of at least one second cation M, wherein the second cation M is selected from lithium, strontium, sodium, tetraalkylammonium and mixtures thereof when the first cation, Q is butamethonium cations, and wherein the second cation M is tetramethylammonium when the first cation Q is N,N,N,-trimethyl-N-butylammonium cations.
    Type: Application
    Filed: April 5, 2013
    Publication date: May 21, 2015
    Inventors: Allen W. Burton, Hilda B. Vroman
  • Publication number: 20150132216
    Abstract: The present invention is directed to a process for preparing CHA-type molecular sieves using a colloidal aluminosilicate in the presence of a octahydroindolium-based cationic structure directing agent.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: CHEVRON U.S.A. INC.
    Inventor: Saleh Ali ELOMARI
  • Publication number: 20150119620
    Abstract: In a process for the synthesis of a crystalline molecular sieve material having the EUO framework type, a synthesis mixture is provided suitable for the formation of an EUO framework type molecular sieve and comprising N,N,N,N?,N?,N?-hexamethylhexanediammonium, Q, cations and a colloidal suspension of seed crystals of an EUO framework type molecular sieve. The synthesis mixture is crystallized and an EUO framework type molecular sieve in the form individual crystals and/or aggregates of crystals having an average size, d50, as measured by laser scattering, of less than 15 ?m is recovered from the synthesis mixture.
    Type: Application
    Filed: June 7, 2013
    Publication date: April 30, 2015
    Inventor: Machteld M. W. Mertens
  • Publication number: 20150118150
    Abstract: A novel method for synthesizing AEI zeolites is provided which results in high overall relative yields on silica and the structure directing agent.
    Type: Application
    Filed: October 31, 2014
    Publication date: April 30, 2015
    Inventors: Sanyuan YANG, John Leonello CASCI, David LANG
  • Publication number: 20150118149
    Abstract: The present invention relates to a titanium silicalite molecular sieve, wherein the crystal grain of the titanium silicalite molecular sieve has a ratio of (surface Si/Ti ratio):(bulk Si/Ti ratio) being larger than 1.1 and less than 5.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Changjiu XIA, Bin ZHU, Min LIN, Xinxin PENG, Xingtian SHU, Chunfeng SHI
  • Publication number: 20150104377
    Abstract: A method for making a new crystalline molecular sieve designated SSZ-96 is disclosed using a 1-butyl-1-methyl-octahydroindolium cation as a structure directing agent.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 16, 2015
    Inventor: Saleh Ali ELOMARI
  • Publication number: 20150093327
    Abstract: The present invention is directed to a process for preparing CHA-type molecular sieves using a colloidal aluminosilicate composition containing a cationic structure directing agent selected from the group consisting of N-cyclohexyl-N-methylpyrrolidinium, N-cyclohexyl-N-ethylpyrrolidinium, N-methyl-N-(3-methylcyclohexyl)pyrrolidinium, N-ethyl-N-(3-methylcyclohexyl)pyrrolidinium, N-methyl-N-(2-methylcyclohexyl)-pyrrolidinium, N-ethyl-N-(2-methylcyclohexyl)pyrrolidinium, and mixtures thereof.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 2, 2015
    Applicant: CHEVRON U.S.A. INC.
    Inventor: Saleh Ali Elomari
  • Publication number: 20150078993
    Abstract: The present invention is directed to a process for preparing MWW-type molecular sieves using 1,3-diisobutylimidazolium as a structure directing agent.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Saleh Ali Elomari, Timi Pravin Singa
  • Publication number: 20150078991
    Abstract: A method for making zeolite SSZ-35 is disclosed using a N,N-dimethylazonanium cation as a structure directing agent.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Inventor: Saleh Ali ELOMARI
  • Publication number: 20150078992
    Abstract: The present invention is directed to a process for preparing CHA-type molecular sieves using a colloidal aluminosilicate in the presence of a cationic structure directing agent selected from the group consisting of N-cyclohexyl-N-methylpyrrolidinium, N-methyl-N-(3-methylcyclohexyl)pyrrolidinium, N-ethyl-N-(3-methylcyclohexyl)pyrrolidinium, and mixtures thereof.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Applicant: CHEVRON U.S.A. INC.
    Inventor: Saleh Ali Elomari
  • Publication number: 20150078990
    Abstract: A method for making zeolite SSZ-35 is disclosed using a N,N-diethyl-2,3-dimethylpiperidinium cation or a N,N-dimethyl-2-isopropylpiperidinium cation as a structure directing agent.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Inventor: Saleh Ali ELOMARI
  • Patent number: 8951498
    Abstract: A one step synthesis of nanocrystalline zeolites ZSM-5 and Na? from a single template system in high yield has been discovered. The size of individual nanocrystals, as well as mesopore surface area and pore volume can be controlled by adjusting the pH of the reaction mixture, as well as the hydrothermal treatment temperature and duration. The mesopore volume and size distribution show a dependence on particle size such that smaller particles lead to higher mesopore volumes and narrower pore size distributions.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: February 10, 2015
    Assignee: University of Iowa Research Foundation
    Inventors: Sarah Larsen, Anton Petushkov
  • Publication number: 20150038322
    Abstract: A method is disclosed for preparing zeolite SSZ-70 using an imidazolium cation as a structure directing agent in conjunction with a polyethyleneimine modifier. The SSZ-70 zeolite is characterized as having an external surface area larger than conventional SSZ-70 zeolites.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Inventors: Stacey Ian ZONES, Tracy Margaret DAVIS
  • Publication number: 20150010468
    Abstract: A novel MFI zeolite that when used as a catalyst, can be used for a selective catalytic reaction for larger molecules and provides a method for producing the MFI zeolite. The MFI zeolite includes uniform mesopores having a pore distribution curve which a peak-width thereof at half height (hw) is at most 20 nm (hw?20 nm) and a center value (?) of a maximum peak is 10 nm or more and 20 nm or less (10 nm???20 nm), and having a pore volume (pv) of the uniform mesopores of at least 0.05 mL/g (0.05 mL/g?pv); the MFI zeolite has no peak in a range of 0.1° to 3° in powder X-ray diffraction measurement with a diffraction angle represented by 2?; and the MFI zeolite has an average particle diameter (PD) of at most 100 nm (PD?100 nm).
    Type: Application
    Filed: March 25, 2013
    Publication date: January 8, 2015
    Inventors: Yasuyuki Takamitsu, Satoshi Yoshida
  • Publication number: 20150004094
    Abstract: A method for preparing molecular sieves with a Linde Type A (LTA) topology structure, and molecular sieves obtained thereby are described wherein a structure directing agent comprising a triquaternary cation is contacted with a source of a first oxide of a first tetravalent element or a source of a first oxide of a trivalent element; and a source of an oxide of a pentavalent elements.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Joel SCHMIDT, Mark E. DAVIS
  • Patent number: 8911704
    Abstract: A new family of crystalline microporous metallophosphates designated MAPSO-64 has been synthesized. These metallophosphates are represented by the empirical formula R+rMmn+EPxSiyOz where R is an organoammonium cation such as ETMA+ or DEDMA?, M is a divalent metal such as an alkaline earth or transition metal, and E is a framework element such as aluminum or gallium. The microporous MAPSO-64 compositions BPH topology and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for separating at least one component.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: December 16, 2014
    Assignee: UOP LLC
    Inventors: Gregory J. Lewis, Lisa M. Knight, Paulina Jakubczak, Justin E. Stanczyk
  • Publication number: 20140336394
    Abstract: A new molecular sieve material is designated as EMM-23 and has, in its as-calcined form, an X-ray diffraction pattern including the following peaks in Table 1: TABLE 1 d-spacing (?) Relative Intensity [100 × I/I(o)] 17.5-16.3 60-100 10.6-10.1 5-50 9.99-9.56 20-70? 6.23-6.06 1-10 5.84-5.69 1-10 5.54-5.40 1-10 4.29-4.21 1-10 3.932-3.864 1-10 3.766-3.704 5-40 3.735-3.674 1-10 3.657-3.598 1-10 3.595-3.
    Type: Application
    Filed: July 24, 2012
    Publication date: November 13, 2014
    Applicant: ExxonMobil Chemical Company - Law Technology
    Inventors: Allen W. Burton, Karl G. Strohmaier, Hilda B. Vroman
  • Patent number: 8859836
    Abstract: A crystalline molecular sieve of MFS framework type manufactured by the method disclosed herein. A hydrocarbon conversion process using the crystalline molecular sieve is disclosed.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: October 14, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Machteld M. Mertens, An Verberckmoes, Ivy D. Johnson
  • Publication number: 20140241980
    Abstract: The present invention is directed to an alumino-borosilicate SSZ-57 zeolite having enhanced large pore selectivity. The alumino-borosilicate SSZ-57 zeolite of the present invention is characterized as having substantially all of its aluminum atoms located within regions of the zeolite structure which form the 12 ring channels.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventors: Stacey Ian Zones, Cong-Yan Chen, Annabelle Benin
  • Publication number: 20140227171
    Abstract: This disclosure is directed to a new cobalt aluminophosphate molecular sieve designated SSZ-85 and a method for preparing SSZ-85 using a 1,3-diisopropylimidazolium ionic liquid.
    Type: Application
    Filed: December 3, 2013
    Publication date: August 14, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventor: Stacey Ian Zones
  • Publication number: 20140200386
    Abstract: A molecular sieve material designated as EMM-22 has, in its calcined form, an X-ray diffraction pattern including the following peaks in Table 1: TABLE 1 Relative Intensity d-spacing (?) [100 × I/I(o)] 11.03 ± 0.40 VS ?9.91 ± 0.20 W ?6.70 ± 0.04 VW ?4.39 ± 0.02 W ?4.06 ± 0.04 W ?3.85 ± 0.02 M ?3.37 ± 0.
    Type: Application
    Filed: July 24, 2012
    Publication date: July 17, 2014
    Inventor: Allen W. Burton
  • Publication number: 20140161717
    Abstract: Methods are provided for synthesizing ZSM-58 crystals with an improved morphology and/or an improved size distribution. By controlling the conditions during synthesis of the ZSM-58 crystals, crystals of a useful size with a narrow size distribution can be generated. Additionally, by controlling the ratio of water content to silica content in the synthesis mixture, it has unexpectedly been found that ZSM-58 crystals can be formed with an improved morphology. The improved morphology can result in ZSM-58 crystals with a more uniform size across the various dimensions of the crystal, which allows for more uniform diffusion within the crystal. This is in contrast to conventionally synthesized crystals, where the size of the crystal can vary along different axes of the crystals.
    Type: Application
    Filed: November 8, 2013
    Publication date: June 12, 2014
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Ivy D. Johnson, Nadya A. Hrycenko, Barbara Carstensen, Machteld Mertens, Brita Engels
  • Publication number: 20140147378
    Abstract: The present invention is directed to a process for preparing CHA-type molecular sieves using a colloidal aluminosilicate composition containing at least one cyclic nitrogen-containing cation suitable as directing agents for synthesizing CHA-type molecular sieves.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 29, 2014
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Tracy Margaret Davis, Saleh Ali Elomari, Stacey Ian Zones
  • Publication number: 20140140921
    Abstract: An aspect of the invention relates to a method of synthesizing a crystalline molecular sieve having an MSE framework type, the method comprising crystallizing a reaction mixture comprising a source of water, a source of an oxide of a tetravalent element, Y, selected from at least one of silicon, tin, titanium, vanadium, and germanium, optionally but preferably a source of a trivalent element, X, a source of an alkali or alkaline earth metal, M, a source of a tetraethylammonium cation, Q1, and optionally a source of a second organic cation, Q2, which can include a cyclic nitrogen-containing ammonium cation.
    Type: Application
    Filed: October 15, 2013
    Publication date: May 22, 2014
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Allen W. Burton, Scott J. Weigel
  • Patent number: 8679451
    Abstract: An aluminosilicate ZSM-12 may be prepared de novo in a small crystalline form from a reaction mixture containing a source of silica and a source of alumina. A small crystalline form of aluminosilicate ZSM-12 may also be prepared from a small crystalline form of borosilicate ZSM-12 by replacement of boron in the borosilicate ZSM-12 framework with aluminum. The aluminosilicate ZSM-12 is useful as an isomerization selective catalyst in processes such as isomerization dewaxing hydrocarbon feedstocks.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: March 25, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Allen W. Burton, Jr., Tracy M. Davis
  • Patent number: 8658127
    Abstract: A method of preparing a mesoporous zeolite material is disclosed. The method comprises forming template-occluded primary metal-doped silicate particles having an amorphous structure and aggregating the particles into mesoporous agglomerates. The amorphous structure is further transformed into a microporous nanocrystalline zeolite structure, thereby forming a mesoporous zeolitic material. Forming the mesoporous zeolite material includes removing the template from the template-occluded particles.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: February 25, 2014
    Assignee: Nalco Company
    Inventor: Brian T. Holland
  • Publication number: 20140024868
    Abstract: A process is described for producing an M41S family molecular sieve. The process comprises preparing a synthesis mixture capable of forming said molecular sieve in a reactor, which is equipped with a mixer having a Froude number of at least 1, said synthesis mixture having a solids content of at least 20 wt %. The synthesis mixture is heated in the reactor while agitating the mixture with said mixer to form a product mixture comprising water and crystals of said molecular sieve material. Thereafter at least part of the water is removed from the product mixture in the reactor so as to decrease the water content of the product mixture inside the reactor by at least 5 wt %.
    Type: Application
    Filed: March 12, 2012
    Publication date: January 23, 2014
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Wenyih Frank Lai, Stephen J. McCarthy, Robert Ellis Kay
  • Publication number: 20140010754
    Abstract: Disclosed herein is method for preparing LEV-type zeolites from FAU-type zeolites in fluoride media using an N-methyl quinuclidinium cation as a structure directing agent.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 9, 2014
    Applicant: Chevron U.S.A. Inc.
    Inventor: Tracy Margaret Davis
  • Publication number: 20140004036
    Abstract: A new family of crystalline microporous metallophosphates designated AlPO-59 has been synthesized. These metallophosphates are represented by the empirical formula R+rMm2+EPxSiyOz where R is an organoammonium cation such as the ETMA+, M is a framework metal alkaline earth or transition metal of valence 2+, and E is a trivalent framework element such as aluminum or gallium. The AlPO-59 compositions are characterized by a new unique ABC-6 net structure and compositions and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for separating at least one component.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: UOP LLC
    Inventors: Gregory J. Lewis, Lisa M. Knight, Paulina Jakubczak, Justin E. Stanczyk
  • Publication number: 20140005453
    Abstract: A catalyst and its preparation and use are disclosed. The catalyst is a silicalite having germanium (Ge) included within the framework of the silicalite prepared in a particular manner. The catalyst may be used in a method of converting hydrocarbons wherein a hydrocarbon feed is contacted with the catalyst. The catalyst may be formed by preparing an aqueous reaction mixture of a silica-containing silicalite precursor material and a germanium source. The reactants of the reaction mixture are allowed to react. The reacted reaction mixture is heated under conditions to form crystals of a silicalite having germanium included within the framework of the silicalite. The crystals are then calcined to form the catalyst. In certain embodiments, a noble metal may be deposited upon the germanium-containing silicalite.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Inventors: Alla Khanmamedova, Scott Stevenson, Dustin Farmer, Mike Mier
  • Publication number: 20140004035
    Abstract: A new family of crystalline microporous metallophosphates designated AlPO-57 has been synthesized. These metallophosphates are represented by the empirical formula R+rMmn+EPxSiyOz where R is an organoammonium cation such as the DEDMA+, M is a divalent framework metal such as an alkaline earth or transition metal, and E is a framework element such as aluminum or gallium. The microporous AlPO-57 compositions are characterized by a new unique ABC-6 net structure and have catalytic properties for carrying out various hydrocarbon conversion processes and separation properties for separating at least one component.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: UOP LLC
    Inventors: Gregory J. Lewis, Lisa M. Knight, Paulina Jakubczak, Justin E. Stanczyk
  • Publication number: 20130330272
    Abstract: Aluminosilicate zeolite SSZ-56 is directly prepared using a 1-butyl-1-(3,3,5-trimethylcyclohexyl)piperidinium cation as a structure directing agent.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: Chevron U.S.A. Inc.
    Inventors: Saleh Ali Elomari, Timi Pravin Singa