Production and utilization of methane from cowshed gas on farms

Methane from cattle farming has a significant influence on climate change. In order to reduce this influence and utilise the potential of methane as an energy source on farms at the same time, the enrichment and separation of cowshed gas was investigated using a diffusion tower and a cryogenic cooling system, both on a laboratory scale. A diffusion enrichment of the methane content (initial concentration < 0.01 Vol. %) from the cowshed gas as described in [1] could not be achieved. The separation of methane from cowshed gas using cryogenic cooling was possible with high purity but high energy consumption. However, increased enrichment using other methods and a continuous process in general can lead to successful enrichment and separation of methane from cowshed gas, the utilisation of this methane on farms and the reduction of methane emissions.