ETW biogas plant successful in continuous operation
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For four years, biogas has been produced from maize, grass, and whole plant silage at the Laupheim site, about 30 km south of Ulm, Germany. The raw biogas is processed by Erdgas Südwest GmbH and made available to end customers in the form of biomethane over the own natural gas grid. In 2008, the first biogas processing plant was commissioned at the site. The pressure swing adsorption of Schmack Carbotech processes about 600 standard m3 of raw biogas an hour. This amount is sufficient to continually supply about 2,000 four-person households with electricity.
To respond to the growing demand for biomethane, the operator decided to expand the production capacity. In view of the practical experience from the operation and the knowledge of the advantages of dry pressure swing adsorption, the operator opted for a biomethane system of ETW Energietechnik. One of the main reasons for this decision: The specialists from Moers, Germany, had the best solution for the challenge of integrating the new technology in the existing array.