Patents by Inventor Lars Bentell

Lars Bentell 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).

  • Waste destruction
    Patent number: 4718362
    Abstract: The present invention relates to a method of destroying waste to form a leach-proof slag and a gas containing only H.sub.2 and CO as combustible constituents. The method comprises the steps of: (a) supplying waste material at the top of a shaft furnace while simultaneously supplying energy in the form of hot oxidizing gas at the bottom of the shaft furnace, (b) discharging liquid slag from the bottom of the furnace shaft and withdrawing the gas generated, at the top of the furnace shaft, and (c) supplying the gas generated, to a subsequent reaction chamber while simultaneously supplying energy in the form of a hot gas.
    Type: Grant
    Filed: April 9, 1986
    Date of Patent: January 12, 1988
    Assignee: SKF Steel Engineering AB
    Inventors: Sven Santen, Sven Eriksson, Lars Bentell, Hakan Johansson
  • Method of destroying hazardous wastes
    Patent number: 4615285
    Abstract: The invention relates to a method of destroying hazardous waste, by means of under-stoichiometric incineration at a temperature of at least 1200.degree. C., the ratio between injected waste material and oxidant being regulated to give a quotient CO.sub.2 /(CO+CO.sub.2) of less than 0.1.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: October 7, 1986
    Assignee: SKF Steel Engineering, AB
    Inventors: Lars Bentell, Jarl Martensson