Patents by Inventor Karlheinz Arras

Karlheinz Arras 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).

  • Process for avoiding a formation of highly condensed aromatic hydrocarbons and dioxines in combustion system
    Patent number: 5106395
    Abstract: A process is described for avoiding the formation of highly condensed aromatic hydrocarbons and dioxines in combustion systems, preferably in garbage incinerating systems, wherein the combustion exhaust gas are dedusted at temperatures from 300.degree. to 1000.degree. C. behind the furnace and wherein said process combustion exhaust gases are dedusted by means of a ceramic filter element which is made of SiO.sub.2 and/or Al.sub.2 O.sub.3 and/or ZrO.sub.2 and an inorganic binder and has a porosity of 50 to 90% and an apparatus for carrying out the process is also described.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: April 21, 1992
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Ekkehard Weber, Karlheinz Arras