Patents by Inventor Harold Koempel

Harold Koempel 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).

  • Patent number: 7655825
    Abstract: A method is disclosed for producing a synthetic fuel, especially diesel fuel and in addition gasoline, liquefied petroleum gas and heating gas from a gas mixture comprising an oxygenate wherein the oxygenate is methanol and/or dimethyl ether and/or another oxygenate, through a series of steps, including olefin-formation, oligomerization of the olefins, and several separation steps and recycling steps, in particular the recycling of a stream of saturated hydrocarbons following the oligomerization of olefins back to the olefin-forming stage, to obtain the diesel fuel and the other synthetic fuels in high yield.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: February 2, 2010
    Assignee: Lurgi AG
    Inventors: Martin Rothämel, Bernd Ahlers, Matthias Wagner, Harold Koempel, Juergen Hofmockel