Abstract

Corrosion in biogas power plants can influence the economic success of these energy production processes. The corrosion processes in biogas power plants have been investigated by various techniques. The influence of different feed materials has been studied. Long term exposure tests were conducted to determine the corrosion resistance of two different stainless steels and galvanized steel. Scanning electron microscopy and metallographic cross sections show the differences in the corrosion behavior of the materials studied. Electrochemical measurements have also been performed. The results, which show the kinetics of the different materials, will be discussed. Recommendations for the safe use of the materials in biogas power plants, will be given.

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