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Concepts for Renewable Resources AD Plants with Power-Heat Coupling and a External Hydrolysis Unit.

SUMMARY:
Biogas plants are usually situated close to the biomass sources making the power - heat coupling difficult due to the distances to possible consumers. One possible solution may be the construction of a “mother” biogas plant outside inhabited areas equipped with one or more external hydrolysis units to prepare the material for the anaerobic digestion in the “daughter” biogas plant erected close to consumers, e.g. in industrial estates.

The advantage of this concept is the fact, that not the heat has to be transported that is expensive and generates great losses, but the fuel. Actually such a plant is under construction in Lower Bavaria. The plant will possess an electrical power capacity of 500 kW and can be extended to 1 MW by its modular construction. The plant will treat organic fertilizer as duck dung and renewable resources as several silages (e.g. from corn). It is equipped with four hydrolysis units, two are intended for the hydrolysis of own material used in the plant and two will be used for the hydrolysis of materials for the digestion in the daughter plant(s). This service will be paid by the daughter biogas plant. The plant possesses four 1200m³ concrete digesters and two 1200m³ storage digesters.

Copyright:	© European Compost Network ECN e.V.
Quelle:	Orbit 2006 (September 2006)
Seiten:	8
Preis:	€ 0,00
Autor:	Dr.-Ing. Matthias Klauß J. MATTHES Dipl.-Ing. agr. Walter Danner
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