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  • Biogas dryer
  • Biogas dryer

GASODRIX?

Article: 00042426

Biogas dryer

Biogas is coming out of the anaerobic digesters saturated with water vapour. At the usual digester temperature of mesophilic anaerobic digesters of around 30°C, this means that the biogas contains about 5% water, or about 50 g/Nm³ biogas. If the temperature of the biogas subsequentely drops, some of that water will condense into liquid.

In case the biogas pipeline from the digester(s) to a biogas burner(s) is long, with many ups and downs, and/or has certain part of its trajectory under ground or in a culvert below grade, then this condensation will give rise to the build-up of water pockets, resulting in pressure fluctuations and surges which will disturb or trip the biogas reuse system.

In case the biogas is used as fuel in electrical power generators, there are limits imposed on the humidity of the biogas at the inlet of the engines (usually 70 80%), in order to avoid damage to the engines.

As a solution for these problems, GWE, in collaboration with its long time partner DWS (Belgium), has developed a biogas drier system called GASODRIX?.

The GASODRIX? biogas drier package unit used consists of a stainless steel biogas/refrigerant heat exchanger and a refrigerant cooling group with a compressor, a condenser, a storage tank, and an evaporator.

Specifications

  • Associated function: evaporator
  • Applications: biogas

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