Patents by Inventor Eika W. QIAN

Eika W. QIAN 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).

  • Method for producing biofuel
    Patent number: 11427776
    Abstract: The present invention provides a method for producing a biofuel that allows an animal/vegetable fat/oil raw material containing a free fatty acid to react with a lower alcohol in the presence of a solid acid catalyst, in which the consumption of the lower alcohol is reduced and the free fatty acid and the lower alcohol are selectively esterified to reform the animal/vegetable fat/oil. In this method, as a solid acid catalyst is used a catalyst selected from an SiO2/Al2O3 solid acid catalyst, an SiO2/Al2O3 solid acid catalyst with aluminum being partially introduced into mesoporous silica, an Al2O3/B2O3 solid acid catalyst, and a sulfated zirconia solid acid catalyst, with a molar ratio of the free fatty acid and the lower alcohol of 1 to 6.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: August 30, 2022
    Assignees: FUJITUSYO CO., LTD., NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULTURE & TECHNOLOGY
    Inventors: Eika W. Qian, Toshitaka Watanabe, Masaaki Katou
  • METHOD FOR PRODUCING BIOFUEL
    Publication number: 20210214625
    Abstract: The present invention provides a method for producing a biofuel that allows an animal/vegetable fat/oil raw material containing a free fatty acid to react with a lower alcohol in the presence of a solid acid catalyst, in which the consumption of the lower alcohol is reduced and the free fatty acid and the lower alcohol are selectively esterified to reform the animal/vegetable fat/oil. In this method, as a solid acid catalyst is used a catalyst selected from an SiO2/Al2O3 solid acid catalyst, an SiO2/Al2O3 solid acid catalyst with aluminum being partially introduced into mesoporous silica, an Al2O3/B2O3 solid acid catalyst, and a sulfated zirconia solid acid catalyst, with a molar ratio of the free fatty acid and the lower alcohol of 1 to 6.
    Type: Application
    Filed: July 17, 2019
    Publication date: July 15, 2021
    Applicants: FUJITUSYO CO.,LTD., NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF AGRICULUTURE & TECHNOLOGY
    Inventors: Eika W. QIAN, Toshitaka WATANABE, Masaaki KATOU