Patents by Inventor Michael E. Ehlers

Michael E. Ehlers 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).

  • Production of high cetane diesel fuel by employing hydrocracking and catalytic dewaxing techniques
    Patent number: 5611912
    Abstract: A process for the production of diesel fuel with a high cetane number at a low cloud point, which involves hydrocracking highly aromatic fractions obtained from catalytic cracking operations. The fraction of hydrocracker effluent which boils between about 400.degree. F. (205.degree. C.) and 1000.degree. F. (538.degree. C.) is subsequently catalytically dewaxed in order to obtain a cloud point of no more than 41.degree. F. (5.degree. C.). The hydrocracker effluent fraction is preferably recycled to the hydrocracking step prior to dewaxing.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: March 18, 1997
    Assignee: Mobil Oil Corporation
    Inventors: Scott Han, Roland H. Heck, Michael E. Ehlers