Patents by Inventor Nikolaos Dimitratos

Nikolaos Dimitratos 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: 9428454
    Abstract: A process for the complete or partial oxygenation of hydrocarbons comprises contacting a C1-C8 hydrocarbon, molecular oxygen, and hydrogen peroxide, in the presence of water and a heterogeneous catalyst, under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry acid centers and Lewis acid centers. The reaction may be carried out at a temperature ranging from 2° C. to 90° C. The use of molecular oxygen increases the economic attractiveness of the process while also improving yield.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: August 30, 2016
    Assignee: University College Cardiff Consultants Limited
    Inventors: Graham J. Hutchings, Michael M. Forde, Jose A. Lopez-Sanchez, Nikolaos Dimitratos
  • Patent number: 8901028
    Abstract: A process for the complete or partial oxidation of hydrocarbons comprises contacting a C1-C8 hydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Particularly useful catalysts may include, for example, metal-modified ZSM-5 and other zeolites.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: December 2, 2014
    Assignee: University College Cardiff Consultants Limited
    Inventors: Graham John Hutchings, Jose Antonio Lopez-Sanchez, Ceri Hammond, Nikolaos Dimitratos, Nicholas Fracois Dummer
  • Publication number: 20140303400
    Abstract: A process for the complete or partial oxygenation of hydrocarbons comprises contacting a C1-C8 hydrocarbon, molecular oxygen, and hydrogen peroxide, in the presence of water and a heterogeneous catalyst, under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry acid centers and Lewis acid centers. The reaction may be carried out at a temperature ranging from 2° C. to 90° C. The use of molecular oxygen increases the economic attractiveness of the process while also improving yield.
    Type: Application
    Filed: October 3, 2012
    Publication date: October 9, 2014
    Applicant: UNIVERSITY COLLEGE CARDIFF CONSULTANTS LIMITED
    Inventors: Graham J. Hutchings, Michael M. Forde, Jose A. Lopez - Sanchez, Nikolaos Dimitratos
  • Publication number: 20130324761
    Abstract: A process for the complete or partial oxidation of hydrocarbons comprises contacting a C1-C8 hydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Examples include zeolites modified with selected metals or metal oxides. Including copper, either in the catalyst, in a second catalyst of similar description, or as a homogeneous salt, increases both selectivity and activity of the process, particularly where an iron-containing catalyst is used.
    Type: Application
    Filed: February 2, 2011
    Publication date: December 5, 2013
    Applicant: University College Cardiff Consulltants Limited
    Inventors: Graham John Hutchings, Jose Antonio Lopez-Sanchez, Ceri Hammond, Nikolaos Dimitratos, Nicholas Fracois Dummer
  • Publication number: 20130090495
    Abstract: A process for the complete or partial oxidation of hydrocarbons comprises contacting a C1-C8 hydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C1-C8 hydrocarbon to at least one corresponding C1-C8 oxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Particularly useful catalysts may include, for example, metal-modified ZSM-5 and other zeolites.
    Type: Application
    Filed: June 25, 2010
    Publication date: April 11, 2013
    Inventors: Graham John Hutchings, Jose Antonio Lopez-Sanchez, Ceri Hammond, Nikolaos Dimitratos, Nicholas Fracois Dummer
  • Publication number: 20120203035
    Abstract: This invention concerns processes for the oxidation of hydrocarbons such as methane to form alcohols such as methanol using heterogeneous gold-containing supported catalysts. Hydrogen peroxide is used as the oxidant. The hydrogen per-oxide can be made in situ.
    Type: Application
    Filed: October 29, 2009
    Publication date: August 9, 2012
    Applicant: Cardiff University
    Inventors: Jose Antoniol Lopez-Sanchez, Nikolaos Dimitratos, Robert L. Jenkins, Albert F. Carley, David J. Willock, Stuart H. Taylor, Graham John, Mohd Hasbi Ab. Rahim