Patents by Inventor San-Jang Wang

San-Jang Wang 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).

  • Device and method for manufacturing dimethyl carbonate
    Patent number: 11332431
    Abstract: A device for manufacturing dimethyl carbonate including a reaction section and a separation section is provided. The reaction section includes a first distillation column, a methanol supply device, a carbon dioxide supply device, a dehydrating agent supply device, and a side reactor. The methanol supply device is connected to the first distillation column. The carbon dioxide supply device is connected to the first distillation column. The dehydrating agent supply device is connected to the first distillation column. A feed nozzle of the side reactor is connected to a gas outlet of a top of the first distillation column. A discharge nozzle of the side reactor is connected to a recycle nozzle of the first distillation column. A catalyst is disposed in the side reactor. The separation section includes a second distillation column. The second distillation column is connected to a liquid outlet of a bottom of the first distillation column.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: May 17, 2022
    Assignee: National Tsing Hua University
    Inventors: Tsai-Wei Wu, I-Lung Chien, San-Jang Wang, David S. H. Wong, En-Ko Lee, Shi-Shang Jang
  • DEVICE AND METHOD FOR MANUFACTURING DIMETHYL CARBONATE
    Publication number: 20210323905
    Abstract: A device for manufacturing dimethyl carbonate including a reaction section and a separation section is provided. The reaction section includes a first distillation column, a methanol supply device, a carbon dioxide supply device, a dehydrating agent supply device, and a side reactor. The methanol supply device is connected to the first distillation column. The carbon dioxide supply device is connected to the first distillation column. The dehydrating agent supply device is connected to the first distillation column. A feed nozzle of the side reactor is connected to a gas outlet of a top of the first distillation column. A discharge nozzle of the side reactor is connected to a recycle nozzle of the first distillation column. A catalyst is disposed in the side reactor. The separation section includes a second distillation column. The second distillation column is connected to a liquid outlet of a bottom of the first distillation column.
    Type: Application
    Filed: June 9, 2020
    Publication date: October 21, 2021
    Applicant: National Tsing Hua University
    Inventors: Tsai-Wei Wu, I-Lung Chien, San-Jang Wang, David S. H. Wong, En-Ko Lee, Shi-Shang Jang