Patents by Inventor HUAZHEN SHEN

HUAZHEN SHEN 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 composite sulfur-modified powdered activated carbon
    Patent number: 9302249
    Abstract: A method for preparing composite sulfur-modified powdered activated carbon includes the following steps: providing a powdered activated carbon; proceeding a drying step on the powdered activated carbon; proceeding a liquid-phase sulfur modification step on the dried powdered activated carbon; proceeding a granulation step, so as to obtain a granular powdered activated carbon from the sulfur-modified powdered activated carbon; and proceeding a vapor-phase elemental sulfur heating step on the granular powdered activated carbon, so as to form the composite sulfur-modified powdered activated carbon.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: April 5, 2016
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Chung-Shin Yuan, Iau-Ren Ie, Huazhen Shen
  • METHOD FOR PREPARING COMPOSITE SULFUR-MODIFIED POWDERED ACTIVATED CARBON
    Publication number: 20150051062
    Abstract: A method for preparing composite sulfur-modified powdered activated carbon includes the following steps: providing a powdered activated carbon; proceeding a drying step on the powdered activated carbon; proceeding a liquid-phase sulfur modification step on the dried powdered activated carbon; proceeding a granulation step, so as to obtain a granular powdered activated carbon from the sulfur-modified powdered activated carbon; and proceeding a vapor-phase elemental sulfur heating step on the granular powdered activated carbon, so as to form the composite sulfur-modified powdered activated carbon.
    Type: Application
    Filed: August 14, 2014
    Publication date: February 19, 2015
    Inventors: CHUNG-SHIN YUAN, IAU-REN IE, HUAZHEN SHEN