Noell-dbi Energie-und Entsorgungstechnik Gmbh

Noell-krc Energie Und Umwelttechnik Niederlassung Freiberg

Peter Gohler

Manfred Schingnitz

Jurgen Gorz

Wolfgang Seidel

Heinz Martin

Rainer Bolcek

Hans Hille

Thilo Ziessler

An apparatus and process for regenerating a liquid from a spent liquid containing sodium compounds created during kraft processing for pulping wood while simultaneously obtaining energy. Regeneration begins by gasifying said sodium compounds in a gasification reaction chamber at a temperature greater than the melting temperature of the sodium compounds and generating a gasification gas and salt melt. The gasification gas and salt melt are then directly cooled to a temperature greater than the dew point in the quenching chamber by spraying a cooling liquid which, in turn, causes gaseous condensate to form a bath in the quenching chamber which may also include water from kraft processing. The salt melt dissolves in the bath to produce an aqueous solution. This aqueous solution is then cooled and diluted with alkali liquid produced during the kraft process. Then the diluted aqueous solution is subjected to flashing and emerges as a regenerated liquid free of organic components to be used again in the wood pulping process. Simultaneously, the gasification gas from the quenching chamber is indirectly cooled thereby producing energy through at least one of steam and hot water and subsequently desulfurized.

Process for regenerating a liquid created in the kraft process for

A process and apparatus for feeding dewatered sludge into a reactor for thermal disposal, in which process and apparatus dewatered sludge with a water content of less than 85% is subjected to a temperature-pressure treatment after exiting from a thick-matter pump and prior to its atomization within a disposal reactor. In the temperature-pressure treatment the temperature is adjusted to more than 150.degree. C. and the pressure is adjusted to be equal to or greater than the water vapor/saturation pressure at these temperatures.

Process for feeding sludge into a reactor for thermal disposal

A method for the thermal utilization of combustible components of waste materials of different properties and origin, independently of the degree of contamination with heavy metals and toxic organic compounds or organic chlorine-containing compounds. The waste materials are subjected to the method steps of pyrolysis, comminution, classification, gasification and gas purification in order to produce a clean gas which can be used for various purposes and as a source of energy and an elution-proof, mineral, solid residue which can be easily disposed of.

Method of thermal utilization of waste materials

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Freiberg, Germany

Peter Gohler