Patents by Inventor Mobae Afeworki

Mobae Afeworki 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: 20180318790
    Abstract: Hydrogenation catalysts for aromatic hydrogenation including an organosilica material support, which is a polymer comprising independent units of a monomer of Formula [Z1OZ2OSiCH2]3 (I), wherein each Z1 and Z2 independently represent a hydrogen atom, a C1-C4 alkyl group or a bond to a silicon atom of another monomer; and at least one catalyst metal are provided herein. Methods of making the hydrogenation catalysts and processes of using, e.g., aromatic hydrogenation, the hydrogenation catalyst are also provided herein.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 8, 2018
    Inventors: Paul Podsiadlo, Quanchang Li, David Charles Calabro, Jean Willem Lodewijk Beeckman, Lei Zhang, Kiara M. Benitez, Matthew Scott Ide, Stephen John McCarthy, Mobae Afeworki, Simon Christopher Weston, Preeti Kamakoti, Matu J. Shah, Wenyih Frank Lai, Meghan Kochersperger, David A. Griffin, Ivy D. Johnson
  • Publication number: 20180318815
    Abstract: A novel metal organic framework, EMM-33, is described having the structure of UiO-67 and comprising bisphosphonate linking ligands. EMM-33 has acid activity and is useful as a catalyst in olefin isomerization. Also disclosed is a process of making metal organic frameworks, such as EMM-33, by heterogeneous ligand exchange, in which linking ligands having a first bonding functionality in a host metal organic framework are exchanged with linking ligands having a second different bonding functionality in the framework.
    Type: Application
    Filed: May 2, 2018
    Publication date: November 8, 2018
    Inventors: Joseph M. Falkowski, Mobae Afeworki, Simon C. Weston
  • Publication number: 20180318816
    Abstract: A novel metal organic framework, EMM-39, is described having the structure of UiO-66 and comprising bisphosphonate linking ligands. EMM-39 has acid activity and is useful as a catalyst in olefin isomerization. Also disclosed is a process of making metal organic frameworks, such as EMM-39, by heterogeneous ligand exchange, in which linking ligands having a first bonding functionality in a host metal organic framework are exchanged with linking ligands having a second different bonding functionality in the framework.
    Type: Application
    Filed: May 2, 2018
    Publication date: November 8, 2018
    Inventors: Joseph M. Falkowski, Mary S. Abdulkarim, Mobae Afeworki, Randall J. Meyer, Simon C. Weston
  • Publication number: 20180318817
    Abstract: A novel metal organic framework, EMM-42, is described having the structure of UiO-66 and comprising bisphosphonate linking ligands. EMM-42 has acid activity and is useful as a catalyst in olefin isomerization. Also disclosed is a process of making metal organic frameworks, such as EMM-42, by heterogeneous ligand exchange, in which linking ligands having a first bonding functionality in a host metal organic framework are exchanged with linking ligands having a second different bonding functionality in the framework.
    Type: Application
    Filed: May 2, 2018
    Publication date: November 8, 2018
    Inventors: Joseph M. Falkowski, Mary S. Abdulkarim, Mobae Afeworki, Randall J. Meyer, Simon C. Weston
  • Publication number: 20180273390
    Abstract: A novel zeolitic imidazolate framework material comprises a partially saturated benzimidazole or a partially saturated substituted benzimidazole as a linking ligand, optionally together with unsaturated benzimidazole or an unsaturated substituted benzimidazole as a further linking ligand.
    Type: Application
    Filed: March 19, 2018
    Publication date: September 27, 2018
    Inventors: Joseph M. FALKOWSKI, David C. CALABRO, Yi DU, Mobae AFEWORKI, Simon C. WESTON
  • 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: 10052617
    Abstract: A catalyst for the conversion of methane to higher hydrocarbons including aromatic hydrocarbons comprises molybdenum or a compound thereof dispersed on an aluminosilicate zeolite, wherein the amount of aluminum present as aluminum molybdate in the catalyst is less than 2700 ppm by weight.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: August 21, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Neeraj Sangar, Teng Xu, Larry L. Iaccino, Mobae Afeworki
  • Patent number: 10047304
    Abstract: Hydrogenation catalysts for aromatic hydrogenation including an organosilica material support, which is a polymer comprising independent units of a monomer of Formula [Z1OZ2OSiCH2]3 (I), wherein each Z1 and Z2 independently represent a hydrogen atom, a C1-C4 alkyl group or a bond to a silicon atom of another monomer; and at least one catalyst metal are provided herein. Methods of making the hydrogenation catalysts and processes of using, e.g., aromatic hydrogenation, the hydrogenation catalyst are also provided herein.
    Type: Grant
    Filed: December 11, 2015
    Date of Patent: August 14, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Paul Podsiadlo, Quanchang Li, David Charles Calabro, Jean Willem Lodewijk Beeckman, Lei Zhang, Kiara M. Benitez, Matthew Scott Ide, Stephen John McCarthy, Mobae Afeworki, Simon Christopher Weston, Preeti Kamakoti, Matu J. Shah, Wenyih Frank Lai, Meghan Nines, David A. Griffin, Ivy D. Johnson
  • 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
  • Publication number: 20180142066
    Abstract: Provided herein are compositions and methods for use of an organosilica material comprising a copolymer of at least one monomer of Formula [R1R2SiCH2]3 (I), wherein, R1 represents a C1-C4 alkoxy group; and R2 is a C1-C4 alkoxy group or a C1-C4 alkyl group; and at least one other monomer of Formula [(Z1O)xZ23-xSi—Z3—SZ4] (II), wherein, Z1 represents a hydrolysable functional group; Z2 represents a C1-C10 alkyl or aryl group; Z3 represents a C2-C11 cyclic or linear hydrocarbon; Z4 is either H or O3H; and x represents any one of integers 1, 2, and 3. The composition may be used as a support material to covalently attach transition metal cations, as a sorbent for olefin/paraffin separations, as a catalyst support for hydrogenation reactions, as a precursor for highly dispersed metal nanoparticles, or as a polar sorbent for crude feeds.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 24, 2018
    Inventors: Joseph M. FALKOWSKI, Mobae AFEWORKI, David C. CALABRO, David A. GRIFFIN, Simon C. WESTON
  • Publication number: 20180134943
    Abstract: Viscous aqueous injections fluids including polymers having hydrophilic moieties and hydrophobic groups and at least one of crude oil emulsions and amphiphilic diblock copolymers are provided herein. Methods of making the aqueous injection fluids, and methods of using the aqueous injection fluids for oil recovery are also provided.
    Type: Application
    Filed: October 23, 2017
    Publication date: May 17, 2018
    Inventors: Aditya JAISHANKAR, Mohsen S. YEGANEH, Alex G.K. LEE, Daniel P. CHERNEY, Mobae AFEWORKI, Sartaj S. GHAI
  • Patent number: 9968882
    Abstract: A heat transfer fluid can be used as part of a multi-phase adsorption environment to allow for improved separations of gas components using a solid adsorbent. The heat transfer fluid can reduce or minimize the temperature increase of the solid adsorbent that occurs during an adsorption cycle. Reducing or minimizing such a temperature increase can enhance the working capacity for an adsorbent and/or enable the use of adsorbents that are not practical for commercial scale adsorption using conventional adsorption methods. The multi-phase adsorption environment can correspond to a trickle bed environment, a slurry environment, or another convenient environment where at least a partial liquid phase of a heat transfer fluid is present during gas adsorption by a solid adsorbent.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: May 15, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Simon C. Weston, Mobae Afeworki, Bhupender S. Minhas, Ramesh Gupta, Hugo S. Caram, Manoj K. Chaudhury, Hans Thomann, Hilda B. Vroman, Meghan Nines
  • Publication number: 20170355822
    Abstract: Organosilica materials made from monomers including at least a source of silica that is reactive to polymerize, optionally in combination with at least one additional cyclic monomer. Methods for making such organosilica materials are also described herein.
    Type: Application
    Filed: June 10, 2016
    Publication date: December 14, 2017
    Inventors: David C. Calabro, Ivy D. Johnson, Quanchang Li, Paul Podsiadlo, Simon C. Weston, Mobae Afeworki
  • Publication number: 20170355823
    Abstract: Methods of identifying precursors for producing high porosity and high surface area organosilica materials are providing herein. Methods of producing organosilica materials and uses thereof are also provided herein.
    Type: Application
    Filed: June 10, 2016
    Publication date: December 14, 2017
    Inventors: Brian K. Peterson, David C. Calabro, Quanchang Li, Simon C. Weston, Mobae Afeworki
  • Publication number: 20170240431
    Abstract: A process is disclosed for producing small crystal, high surface area crystalline materials having the MFI and/or MEL framework-type, designated as EMM-30, using as a structure directing agent tetrabutylammonium cations and/or tetrabutylphosphonium cations, or 1,5-bis(N-tributylammonium)pentane dications, and/or 1,6-bis(N-tributylammonium)hexane dications. The compositions made according to that process, as well as the various dication compositions themselves, are also disclosed.
    Type: Application
    Filed: January 18, 2017
    Publication date: August 24, 2017
    Inventors: Allen W. BURTON, Karl G. STROHMAIER, Mobae AFEWORKI, Christine E. KLIEWER
  • Patent number: 9610533
    Abstract: An adsorption-desorption material, in particular, crosslinked organo-amine polymeric materials having a weight average molecular weight of from about 500 to about 1×106, a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO2 adsorbed per gram of adsorption-desorption material, and linear organo-amine polymeric materials having a weight average molecular weight of from about 160 to about 1×106, a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO2 adsorbed per gram of adsorption-desorption material. This disclosure also relates in part to processes for preparing the crosslinked organo-amine materials and linear organo-amine materials.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: April 4, 2017
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Dennis G. Peiffer, David C. Calabro, Quanchang Li, Mobae Afeworki, Stephen M. Cundy
  • Publication number: 20170087506
    Abstract: A heat transfer fluid can be used as part of a multi-phase adsorption environment to allow for improved separations of gas components using a solid adsorbent. The heat transfer fluid can reduce or minimize the temperature increase of the solid adsorbent that occurs during an adsorption cycle. Reducing or minimizing such a temperature increase can enhance the working capacity for an adsorbent and/or enable the use of adsorbents that are not practical for commercial scale adsorption using conventional adsorption methods. The multi-phase adsorption environment can correspond to a trickle bed environment, a slurry environment, or another convenient environment where at least a partial liquid phase of a heat transfer fluid is present during gas adsorption by a solid adsorbent.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 30, 2017
    Inventors: Simon C. WESTON, Mobae AFEWORKI, Bhupender S. MINHAS, Ramesh GUPTA, Hugo S. CARAM, Manoj K. CHAUDHURY, Hans THOMANN, Hilda B. Vroman, Meghan Nines
  • Patent number: 9533248
    Abstract: An adsorption-desorption material, in particular, crosslinked organo-amine polymeric materials having a weight average molecular weight of from about 500 to about 1×106, a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO2 adsorbed per gram of adsorption-desorption material, and linear organo-amine polymeric materials having a weight average molecular weight of from about 160 to about 1×106, a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO2 adsorbed per gram of adsorption-desorption material. This disclosure also relates in part to processes for preparing the crosslinked organo-amine materials and linear organo-amine materials.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: January 3, 2017
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Dennis G. Peiffer, David C. Calabro, Quanchang Li, Mobae Afeworki, Stephen M. Cundy
  • Patent number: 9533249
    Abstract: An adsorption-desorption material, in particular, crosslinked organo-amine polymeric materials having a weight average molecular weight of from about 500 to about 1×106, a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO2 adsorbed per gram of adsorption-desorption material, and linear organo-amine polymeric materials having a weight average molecular weight of from about 160 to about 1×106, a total pore volume of from about 0.2 cubic centimeters per gram (cc/g) to about 2.0 cc/g, and an adsorption capacity of at least about 0.2 millimoles of CO2 adsorbed per gram of adsorption-desorption material. This disclosure also relates in part to processes for preparing the crosslinked organo-amine materials and linear organo-amine materials.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: January 3, 2017
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Dennis G. Peiffer, David C. Calabro, Quanchang Li, Mobae Afeworki, Stephen M. Cundy
  • Publication number: 20160229959
    Abstract: Organosilica materials, which are a polymer of at least one independent monomer of Formula [Z1OZ2OSiCH2]3 (I), wherein each Z1 and Z2 independently represent a hydrogen atom, a C1-C4 alkyl group or a bond to a silicon atom of another monomer and at least one other trivalent metal oxide monomer are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for catalysis etc., are also provided herein.
    Type: Application
    Filed: December 11, 2015
    Publication date: August 11, 2016
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Quanchang Li, David Charles Calabro, Mobae Afeworki, Simon Christopher Weston, Machteld Maria Wilfried Mertens, Tilman Wolfram Beutel, Wenyih Frank Lai, Paul Podsiadlo, Jean Willem Lodewijk Beeckman