Patents by Inventor Kaisong XIANG

Kaisong XIANG 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 preparing hydrogen sulfide from sulfur dioxide by electrochemical reduction
    Patent number: 12129566
    Abstract: A method for preparing hydrogen sulfide from sulfur dioxide by electrochemical reduction includes electrochemically reducing sulfur dioxide absorbed in an aqueous solution into gaseous hydrogen sulfide with a membrane electrode, resulting in efficient and selective conversion of the sulfur dioxide absorbed in the aqueous solution into the hydrogen sulfide to avoid a deactivation of a cathode due to colloidal sulfur produced on the cathode and adhesion onto a surface of the cathode, wherein the method is carried out at ambient temperature and normal pressure without addition of a reducing agent, having no waste salts produced, and is simple in operation, and is convenient for large-scale application.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: October 29, 2024
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventors: Hui Liu, Kaisong Xiang, Liyuan Chai, Fenghua Shen, Xudong Liu, Fangfang Zhu, Lin Wu, Huimin Yi, Xiaobo Min, Zhang Lin, Qingzhu Li, Qingwei Wang, Haiying Wang, Weichun Yang
  • METHOD FOR PREPARING HYDROGEN SULFIDE FROM SULFUR DIOXIDE BY ELECTROCHEMICAL REDUCTION
    Publication number: 20220316078
    Abstract: A method for preparing hydrogen sulfide from sulfur dioxide by electrochemical reduction includes electrochemically reducing sulfur dioxide absorbed in an aqueous solution into gaseous hydrogen sulfide with a membrane electrode, resulting in efficient and selective conversion of the sulfur dioxide absorbed in the aqueous solution into the hydrogen sulfide to avoid a deactivation of a cathode due to colloidal sulfur produced on the cathode and adhesion onto a surface of the cathode, wherein the method is carried out at ambient temperature and normal pressure without addition of a reducing agent, having no waste salts produced, and is simple in operation, and is convenient for large-scale application.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 6, 2022
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Hui LIU, Kaisong XIANG, Liyuan CHAI, Fenghua SHEN, Xudong LIU, Fangfang ZHU, Lin WU, Huimin YI, Xiaobo MIN, Zhang LIN, Qingzhu LI, Qingwei WANG, Haiying WANG, Weichun YANG