Patents by Inventor Tsz Lung KWONG

Tsz Lung KWONG 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).

  • Catalyst and method for biodiesel production from unrefined low-grade oil and crude aqueous alcohols
    Patent number: 10654789
    Abstract: A catalyst for catalyzing transesterification of esters or esterification of fatty acids, the catalyst is selected from the group consisting of manganese (II) glycerolate, cobalt (II) glycerolate, iron (II) glycerolate, and any combination thereof. A method for transesterification reaction, includes: a) providing a catalyst, wherein the catalyst is selected from the group consisting of manganese (II) glycerolate, cobalt (II) glycerolate, iron (II) glycerolate, and any combination thereof; b) adding the catalyst, one or more alcohols, and a composition comprising one or more esters to a reactor to form a reaction mixture; and c) stirring while heating the reaction mixture for reaction to form transesterification products.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: May 19, 2020
    Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY SHENZHEN RESEARCH INSTITUTE
    Inventors: Ka-fu Yung, Wing-tak Wong, Tsz-lung Kwong, Pak-chung Lau
  • CATALYST AND METHOD FOR BIODIESEL PRODUCTION FROM UNREFINED LOW-GRADE OIL AND CRUDE AQUEOUS ALCOHOLS
    Publication number: 20180265446
    Abstract: A catalyst for catalyzing transesterification of esters or esterification of fatty acids, the catalyst is selected from the group consisting of manganese (II) glycerolate, cobalt (II) glycerolate, iron (II) glycerolate, and any combination thereof. A method for transesterification reaction, includes: a) providing a catalyst, wherein the catalyst is selected from the group consisting of manganese (II) glycerolate, cobalt (II) glycerolate, iron (II) glycerolate, and any combination thereof; b) adding the catalyst, one or more alcohols, and a composition comprising one or more esters to a reactor to form a reaction mixture; and c) stirring while heating the reaction mixture for reaction to form transesterification products.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 20, 2018
    Inventors: Ka-fu YUNG, Wing-tak WONG, Tsz-lung KWONG, Pak-chung LAU
  • Methods and catalysts for green biodiesel production from unrefined low grade feedstock
    Patent number: 9694350
    Abstract: This invention provides a catalyst comprising a new form of ZnFe2O4 spinel nanoparticles, and a method for preparing same. The catalyst is useful for catalyzing the esterification of fatty acids or transesterification of triglycerides, wherein the reaction rate and conversion can be enhanced by free fatty acids.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: July 4, 2017
    Assignee: The Hong Kong Polytechnic University
    Inventors: Ka Fu Yung, Wing Tak Wong, Tsz Lung Kwong
  • METHODS AND CATALYSTS FOR GREEN BIODIESEL PRODUCTION FROM UNREFINED LOW GRADE FEEDSTOCK
    Publication number: 20160279616
    Abstract: This invention provides a catalyst comprising a new form of ZnFe2O4 spinel nanoparticles, and a method for preparing same. The catalyst is useful for catalyzing the esterification of fatty acids or transesterification of triglycerides, wherein the reaction rate and conversion can be enhanced by free fatty acids.
    Type: Application
    Filed: March 23, 2016
    Publication date: September 29, 2016
    Inventors: Ka Fu YUNG, Wing Tak WONG, Tsz Lung KWONG