Patents by Inventor Dennis P. Essl

Dennis P. Essl 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).

  • Integrated biofuel process
    Patent number: 9181505
    Abstract: The instant invention pertains to new processes which produce an energy source effectively, efficiently, and in a more environmentally friendly manner. The process comprises hydrolyzing a lignocellulosic feedstock to form lignocellulosic hydrolyzate and a hydrolyzate residue. The lignocellulosic hydrolyzate is treated to produce hydrogen. The hydrolyzate residue may be reacted with hydrogen in the presence of a catalyst to yield the energy source.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: November 10, 2015
    Assignee: Texaco Inc. & Texaco Development Corporation
    Inventors: James F. Stevens, Mukund R. Karanjikar, Kerry K. Spilker, Douglas Gene Naae, Dennis P. Essl, Peter Charles Ricci, Zoran Mirkovic, Thomas M. Vu, Stephen J. Decanio, Jerry M. Rovner, Jason C. Hicks
  • INTEGRATED BIOFUEL PROCESS
    Publication number: 20100307052
    Abstract: The instant invention pertains to new processes which produce an energy source effectively, efficiently, and in a more environmentally friendly manner. The process comprises hydrolyzing a lignocellulosic feedstock to form lignocellulosic hydrolyzate and a hydrolyzate residue. The lignocellulosic hydrolyzate is treated to produce hydrogen. The hydrolyzate residue may be reacted with hydrogen in the presence of a catalyst to yield the energy source.
    Type: Application
    Filed: June 3, 2009
    Publication date: December 9, 2010
    Applicant: Texaco Inc.
    Inventors: James F. Stevens, Mukund R. Karanjikar, Kerry K. Spilker, Douglas Gene Naae, Dennis P. Essl, Peter Charles Ricci, Zoran Mirkovic, Thomas M. Vu, Stephen J. Decanio, Jerry M. Rovner, Jason C. Hicks
  • PROCESS AND APPARATUS FOR REFORMING GASEOUS AND LIQUID FUELS
    Publication number: 20090165368
    Abstract: A process for transitioning from gaseous fuel reformation to liquid fuel reformation has been invented. The process comprises a series of control steps wherein an autothermal reforming reactor's temperature can substantially be stable and satisfactory hydrogen concentration and selectivity can be achieved for producer gas during the transition process. The temperature is controlled by, for example, adjusting the air and water feed. Formulas and algorithms for writing control programs have also been developed.
    Type: Application
    Filed: May 30, 2008
    Publication date: July 2, 2009
    Inventors: Yunquan Liu, Curtis L. Krause, Dennis P. Essl