Solid Recovered Fuel Power Station Eisenhüttenstadt for the Energy Supply of a Paper Machine

In principle the typical technologies known from the thermal treatment of municipal solid waste are applicable for the thermal utilization of residues from the paper industry. The most commonly used technologies are the grate firing systems and fluidized bed combustors. Grate systems are a well proven technology. Their advantages are their robust construction, ability to handle large fuel particles and contraries as well as a comparatively simple fuel feeding.

The Propapier PM 2 AG is a 100 % subsidiary company of the Progroup AG, based in Offenbach/Queich in Germany. The Progroup AG company is present at nine locations in Europe. Core business of the Progroup AG is the production and distribution of corrugated cardboard and corrugated board raw paper. In this line of business it is the market leader in central Europe.
The company planned to build a new papermill, called PM 2, in the city of Eisenhüttenstadt (Germany), south of Frankfurt/Oder. The site is situated 4 km from the river Oder, near to the Polish boarder. It is located in an industrial area next to the Oder-Spree canal, north of Eisenhüttenstadt on an area formally used as storage space, gravel-pit and for railway sidings. For the supply of the PM 2 with electricity and heat, a co-generation plant, the so called HKW Eisenhüttenstadt, was planned at the same site.
Paper production is an energy intensive industry. In this project the corrugated board raw paper is produced from 100 % recovered paper of different qualities. For the raw paper production the recovered paper is disintegrated in a water bath. The fibers are cleaned and conditioned for the utilization in the papermill. The fibers are sprayed in a thin solution on a sieve. The paper-slurry is mechanically dewatered and further dried on a series of steam heated drums. After that the paper is rolled to large roles and is tailored to the required sizes. For the drying of the paper the PM 2 needs about 140 t/h of steam and furthermore has a total electricity demand of 42 MW.
From the paper production about 30,000 Mg of coarse rejects and 49,500 Mg fine rejects arise per year. These rejects have a lower heating value of 16,800 kJ/kg and 5,800 kJ/kg, respectively and shall be utilized in a co-generation plant to cover the energy demand of the papermill.



Copyright: © TK Verlag - Fachverlag für Kreislaufwirtschaft
Quelle: Waste Management, Volume 2 (September 2011)
Seiten: 12
Preis inkl. MwSt.: € 0,00
Autor: Dr. Kai Redemann
Dipl.-Ing. Leo Homann
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