Patents by Inventor Donald E. Carrillo

Donald E. Carrillo 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).

  • Method of recovering MTBE from wastewater
    Patent number: 5413717
    Abstract: Dialkyl ethers having 5 to 7 carbon atoms; e.g. MTBE, and alcohols having 1 to 4 carbon atoms are extracted from wastewater with contaminant-free gasoline. Wastewater saturated with contaminants is reduced to 200 ppm contaminants in the absence of stripping. An octane enhanced gasoline is recovered. Additional ether may be added to the recovered gasoline to increase octane. The method is particularly effective in wastewater/gasoline system containing emulsifiers such as surfactants, gasoline detergents and colloidal particles.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: May 9, 1995
    Assignee: Texaco Inc.
    Inventors: George H. Webster, Jr., Donald E. Carrillo