Patents by Inventor Jacobus Cornelis J.C. Jansen

Jacobus Cornelis J.C. Jansen 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 treating nitrogen oxide-containing gas using a cerium zeolite
    Patent number: 5900222
    Abstract: A process is described for treating nitrogen-oxide containing gases at temperature in the range of 300-560.degree. C. in the presence of a cerium containing zeolite catalyst and an excess of an NH-containing compound such as ammonia or an aqueous urea solution as a reducing agent. Excess reducing agent is converted to nitrogen gas during the process. Selective catalytic reduction using ammonia water or an aqueous urea solution as a reducing agent is also described for converting nitrogen oxides in diesel exhaust gas and preventing oxidation of sulfur dioxide.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: May 4, 1999
    Assignee: Technische Universiteit Delft
    Inventors: Eri Ito, Cornelis Maria C.M. van den Bleek, Herman H. van Bekkum, Jacobus Cornelis J.C. Jansen, Ronald Johannes R.J. Hultermans, Pieter Martin P. M. Lugt