Patents by Inventor Andrew Willson

Andrew Willson 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: 20240067886
    Abstract: The present invention therefore pertains to a process for desulfurizing a sulfur compound-containing liquid fossil fuel. By continuously adding a solution comprising an oxidant to the sulfur compound-containing liquid fossil fuel, it is possible to improve oxidant utilization and achieve higher sulfur removal rate.
    Type: Application
    Filed: December 23, 2020
    Publication date: February 29, 2024
    Applicant: Solvay SA
    Inventors: Wenjuan Zhou, Andrew Willson, Nuno Formiga, Francois Dabeux, Zhen Yan, Stephane Streiff
  • Patent number: 11225613
    Abstract: A process for removing sulfur compounds from a liquid composition immiscible with water, comprising at least partially oxidizing the sulfur compounds by contacting a liquid composition comprising at least one sulfur compound with an aqueous oxidizing solution comprising at least one oxidant in the presence of at least one polyoxometalate and amphiphilic solid particles.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: January 18, 2022
    Assignee: Solvay SA
    Inventors: Wenjuan Zhou, Armin Liebens, Pierre Dournel, Andrew Willson
  • Publication number: 20200056103
    Abstract: A process for removing sulfur compounds from a liquid composition immiscible with water, comprising at least partially oxidizing the sulfur compounds by contacting a liquid composition comprising at least one sulfur compound with an aqueous oxidizing solution comprising at least one oxidant in the presence of at least one polyoxometalate and amphiphilic solid particles.
    Type: Application
    Filed: May 8, 2017
    Publication date: February 20, 2020
    Inventors: Wenjuan ZHOU, Armin LIEBENS, Pierre DOURNEL, Andrew WILLSON
  • Patent number: 9056773
    Abstract: A continuous process for producing hydrogen peroxide by an anthraquinone process, comprising the steps of: (i) hydrogenating an organic working solution containing one or more anthraquinone derivatives in the presence of a heterogeneous catalyst to form a hydrogenated working solution; (ii) oxidizing the hydrogenated working solution by introducing an oxygen-containing oxidizing gas at an overpressure into an oxidation reactor, and contacting the oxidizing gas with the hydrogenated working solution to form an oxidized working solution, whereby hydrogen peroxide is formed; (iii) withdrawing an oxidation off gas from the oxidation reactor; (iv) recovering the formed hydrogen peroxide from the oxidized working solution; (v) subjecting the oxidation off gas withdrawn from said oxidation reactor, which has an excess pressure over atmospheric pressure, to a demisting treatment to obtain a demisted oxidation off gas; and (vi) feeding the demisted oxidation off gas as propellant gas into a gas ejector to produce a va
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: June 16, 2015
    Assignee: SOLVAY SA
    Inventor: Andrew Willson
  • Publication number: 20140255295
    Abstract: A continuous process for producing hydrogen peroxide by an anthraquinone process, comprising the steps of: (i) hydrogenating an organic working solution containing one or more anthraquinone derivatives in the presence of a heterogeneous catalyst to form a hydrogenated working solution; (ii) oxidizing the hydrogenated working solution by introducing an oxygen-containing oxidizing gas at an overpressure into an oxidation reactor, and contacting the oxidizing gas with the hydrogenated working solution to form an oxidized working solution, whereby hydrogen peroxide is formed; (iii) withdrawing an oxidation off gas from the oxidation reactor; (iv) recovering the formed hydrogen peroxide from the oxidized working solution; (v) subjecting the oxidation off gas withdrawn from said oxidation reactor, which has an excess pressure over atmospheric pressure, to a demisting treatment to obtain a demisted oxidation off gas; and (vi) feeding the demisted oxidation off gas as propellant gas into a gas ejector to produce a va
    Type: Application
    Filed: November 7, 2012
    Publication date: September 11, 2014
    Applicant: SOLVAY SA
    Inventor: Andrew Willson