Patents by Inventor Imre Szebenyi

Imre Szebenyi 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: 4367204
    Abstract: The invention is regeneration and recirculation of nitrogen oxides in the exhaust gas of a nitric acid plant without using any material current and heat energy other than that generated in the process of producing nitric acid. Nitrogen oxide is recovered by at least two adsorbers each containing an acid resistant zeolite molecular sieve and operating in an alternate heat cycle; adsorption occurring at 20-40 degrees C. and regeneration at 300-350 degrees C. The hot gas exiting from the oxidation unit used in the production of nitric acid is used to regenerate the adsorbers and the nitrogen oxides set free during the said regeneration are introduced into the main feed stream of the nitric acid plant. In the final stage of the regeneration the adsorbers are cooled by rinsing them with exhaust gas or air at a temperature of 20-40 degrees C.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: January 4, 1983
    Assignee: Budapesti Muszaki Egyetem
    Inventors: Gabor Klopp, Jozsef Suto, Karoly Szasz, Imre Szebenyi, Gabor Winkler, Miklos Machacs, Gyorgy Palmai