Patents by Inventor Shiyouichi Bando

Shiyouichi Bando 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).

  • Process for desulfurizing and refining hydrocarbon fraction containing large quantities of aromatic components
    Patent number: 4486297
    Abstract: Desulfurization and refining of aromatic hydrocarbon fraction containing organic sulfur compounds by catalytic hydrotreating can be performed with a high desulfurization rate (99 wt. % or higher) and without a significant loss (1 mol % or less) of the aromatic components.The improved process is characterized by preliminary sulfurization treatment of the catalyst of Co--Mo system, Ni--Mo system or Ni--Co--Mo system using thiophenes, and hydrotreating of the aromatic hydrocarbon fraction using thus treated catalyst at a relatively high temperature.
    Type: Grant
    Filed: January 9, 1981
    Date of Patent: December 4, 1984
    Assignee: JGC Corporation
    Inventors: Hideyuki Matsumoto, Shiyouichi Bando