Patents by Inventor Changhai Liang

Changhai Liang 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).

  • System based on a new nitrile hydratase for highly efficient catalytic hydration reaction of aliphatic dinitriles
    Patent number: 11421214
    Abstract: The invention belongs to the technical field of green chemistry, and provides a novel system based on a new nitrile hydratase for highly efficient catalytic conversion of aliphatic dinitriles. The invention discloses a new application of nitrile hydratase using Rhodococcus erythropolis CCM 2595 in catalyzing aliphatic dinitrile. In particular, the enzyme can regioselectivity catalyze the formation of 5-cyanopyramides from adiponitrile with high reaction rate under mild reaction conditions, which provides a new method for the industrial production of 5-cyanopyramides.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 23, 2022
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Changhai Liang, Li Wang, Shengxian Liu, Tongyi Dou, Changhao Cui
  • Novel system based on a new nitrile hydratase for highly efficient catalytic hydration reaction of aliphatic dinitriles
    Publication number: 20210087547
    Abstract: The invention belongs to the technical field of green chemistry, and provides a novel system based on a new nitrile hydratase for highly efficient catalytic conversion of aliphatic dinitriles. The invention discloses a new application of nitrile hydratase using Rhodococcus erythropolis CCM 2595 in catalyzing aliphatic dinitrile. In particular, the enzyme can regioselectivity catalyze the formation of 5-cyanopyramides from adiponitrile with high reaction rate under mild reaction conditions, which provides a new method for the industrial production of 5-cyanopyramides.
    Type: Application
    Filed: October 25, 2019
    Publication date: March 25, 2021
    Inventors: Changhai LIANG, Li WANG, Shengxian LIU, Tongyi DOU, Changhao CUI
  • Method for preparing fuel by using biological oils and fats
    Patent number: 9938468
    Abstract: A new method of producing fuel from biological oils and fats is provided, which comprises the following steps: (a) proceeding with a catalytic cracking-deoxygenation reaction for the biological oils and fats under heating in the presence of a cracking-deoxygenation catalyst; (b) mixing the product of step (a) with hydrogen gas; and (c) proceeding with a catalytic hydrodeoxygenation reaction for the mixture from step (b) under heating in the presence of a hydrodeoxygenation catalyst. By means of the method of the present invention, clean fuel produced by using biological oils and fats as raw materials is compatible with the fuel composition produced from crude oil refining.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: April 10, 2018
    Assignees: ECO ENVIRONMENTAL ENERGY RESEARCH INSTITUTE LIMITED, DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Changhai Liang, Bin Xu, Philip Siu, Lei Wang, Xiao Chen, Zhengfeng Shao, Zihui Xiao
  • METHOD FOR PREPARING FUEL BY USING BIOLOGICAL OILS AND FATS
    Publication number: 20140135542
    Abstract: A new method of producing fuel from biological oils and fats is provided, which comprises following steps: (a) proceeding with a catalytic cracking-deoxygenation reaction for the biological oils and fats under heating in the presence of a cracking-deoxygenation catalyst; (b) mixing the product of step (a) with hydrogen gas; and (c) proceeding with a catalytic hydrodeoxygenation reaction for the mixture from step (b) under heating in the presence of a hydrodeoxygenation catalyst. By means of the method of the present invention, clean fuel produced by using biological oils and fats as raw materials is compatible to the fuel composition produced from crude oil refining.
    Type: Application
    Filed: June 12, 2012
    Publication date: May 15, 2014
    Applicants: DALIAN UNIVERSITY OF TECHNOLOGY, ECO ENVIRONMENTAL ENERGY RESEARCH INSTITUTE LIMITED
    Inventors: Changhai Liang, Bin Xu, Philip Siu, Lei Wang, Xiao Chen, Zhengfeng Shao, Zihui Xiao