Dr. Santhana Krishnan

Bioconversion of carbon dioxide and H2 to methane using hydrogenotrophic methanogens

The biological conversion of CO2 and hydrogen to methane is well-known reaction without the demand for high pressure and temperature and is carried out by hydrogenotrophic methanogens. Reducing equivalents to the biotransformation of carbon dioxide from biogas or other resources to biomethane can be supplied by external hydrogen. Discontinuous electricity production from wind and solar energy combined with fluctuating utilization causes serious storage problems that can be solved by a power-to-gas strategy representing the production of storable hydrogen via the electrolysis of water. The possibility of subsequent repowering of the energy of hydrogen to an easily utilizable and transportable form is a biological conversion with CO2 to biomethane.