BioHyMe: Development of a highpressure process for combined Hydrogen- and Methaneproduction
The project BioHyMe is located in the renewable energy research area. In order to ensure a secure supply of fuels and energy, procedures for regenerative electricity production are developed in Europe. Storage of already generated electricity is still a problem due to insufficient network capacity. In addition, society needs fuels for mobility. A way to solve this problem is the “Power to gas” technology where excess current is converted into hydrogen (H2). Biological methane production (BMP) allows H2 to be converted into methane by CO2. Though, only hydrogenotrophic methanogens are currently used in BMP processes. Many microorganisms have not yet been tested in bioprocesses at high pressure.
The BioHyMe project differs both chemically and biological from common methanation processes in order of cultivation at high pressure. The characterisation of methanogens is performed as closed batch, fed batch and in continuous culture. Optimization of process parameters and prioritization of microorganisms should generate new developments in the field of high-pressure biology.