Patents by Inventor Alfons Jankowski

Alfons Jankowski 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: 5045179
    Abstract: The present invention provides a hydrogenation process for reprocessing used oil into secondary raffinates in the form of lubricating oils. In this process according to some embodiments of the invention, ecologically undesirable byproducts or waste materials are eliminated, without requiring expensive and time-consuming separation stages or reaction conditions, or the use of expensive catalysts. In particular, even severely contaminated oils, i.e. those which contain organo-chlorine compounds, in particular PCB, chlorinated dioxins and dibenzofurane in concentrations above certain limits, can also be reused as secondary raffinates, in particular as lubricating oils. No longer need these substances be destroyed in a high temperature combustion process, for example. As a first step, the coarse solid substances are removed from the used oil. Thereafter, with the addition of hydrogen, a hydrogenation step is conducted in a sump phase at predetermined pressures and temperatures.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: September 3, 1991
    Assignee: Ruhrkohle AG
    Inventors: Josef Langhoff, Alfons Jankowski, Harald Weber
  • Patent number: 5015457
    Abstract: The preferred invention describes a process for the hydrogenation of organochlorine compounds and a neutralizing agent for hydrochloric acid which is obtained from organochlorine compounds.
    Type: Grant
    Filed: August 15, 1989
    Date of Patent: May 14, 1991
    Assignee: Ruhrkohle AG
    Inventors: Josef Langhoff, Alfons Jankowski, Klaus-Dieter Dohms
  • Patent number: 4639310
    Abstract: A process for the production of reformer feed and heating or diesel oil from coal which comprises introducing a pulverized coal-oil slurry together with a hydrogenation gas into a liquid-phase hydrogenation stage; remoping solids-containing residue from the discharge from the liquid phase hydrogenation stage, cooling the resulting residue-free volatile coal-oil fraction from the discharge and, if necessary, removing a slurry oil fraction therefrom before feeding the volatile coal-oil fraction to a gas-phase hydrogenation stage; introducing fresh hydrogen which is substantially free of contaminants into the gas-phase hydrogenation stage together with the volatile coal-oil fraction, the fresh hydrogen introduced into the gas-phase hydrogenation stage constituting the entire amount of hydrogen required for the process; and utilizing the waste-gas from the gas-phase hydrogenation as the hydrogenation gas for the liquid-phase hydrogenation.
    Type: Grant
    Filed: August 2, 1985
    Date of Patent: January 27, 1987
    Assignee: Veba Oel Entwicklungs-Gesellschaft
    Inventors: Werner Dohler, Ludwig Merz, Heinz Frohnert, Bernd Uckermann, Ulrich Graeser, Alfons Jankowski, Eckard Wolowski, Hans-Friedrich Tamm, Norbert Wilczok
  • Patent number: 4629550
    Abstract: Disclosed is a process for improving the yield and hydrogen production of catalytic reforming of gasoline derived from mineral oil sources, which at the same time improves knock resistance of the fuel derived. A positive amount of coal-derived feedstocks including refined light coal oil, light oil derived from coal mineral oil refining, gasoline derived from hydrocracking of coal mineral oil and the top product of coal hydrogenation are added to the conventional mineral oil-derived feedstock. An improvement in catalyst residence time is also achieved.
    Type: Grant
    Filed: September 17, 1985
    Date of Patent: December 16, 1986
    Assignee: Veba Oel Entwicklungs-Gesellschaft mbH
    Inventors: Werner Dohler, Alfons Jankowski, Albert Fehrer