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New Biomethane to Grid Project for Purac Puregas

ADBA Member News

Sunderland-based Purac Puregas Limited today announced the placement of a new contract to supply a CApure biogas upgrading plant.

The plant in Wiltshire will upgrade up to 700Nm3/hr of raw biogas from the anaerobic digestion of agricultural waste to UK gas grid specification, producing enough energy to heat around 3,500 homes.

Frank Kenny, Director of Water and Waste Services Ltd who will design and build the AD expansion to the plant they originally installed in 2012, commented:

We have selected Purac Puregas to provide the biogas upgrading plant for this project due to their excellent track record, the plant’s high methane recovery along with ability to fully integrate with the AD & CHP plant.

The CApure process recovers over 99.9% of the biomethane present in the raw biogas, by chemically adsorbing the CO2. The selective organic solvents used in this process are highly efficient, resulting in an end product containing more than 99% methane. The biomethane is of high enough calorific value to be directly injected into the natural gas grid without the need to enrich with propane saving significant costs.


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