Overview of hydrogen production from biogas reforming: Technological advancement

In this article, possibilities of biogas reforming techniques for hydrogen production are discussed. The consideration of biogas reforming to produce H₂ and fuel cell application from membrane technology is presented. In steam reforming process, methane requires a high temperature for reaction, but a suitable catalyst can manage a higher temperature. The ratio of H₂/CO is close to 3, which means higher H₂ yield (above 70%). The ratio of H₂/CO to nearly 2 and H₂ yield almost 67% and also reduces the soot formation for partial oxidation process. In Auto thermal reforming, higher yield of H₂ is around 74% with the ratio of H₂/CO close to 2.8. The dry reforming process leads to a molar ratio H₂/CO of nearly one and H₂ yield of approximately 50%. The ratio of H₂/CO correspondingly improves and generates H₂ yield of approximately 60% for dry oxidation reforming process. For sustainable decentralized power generation in remote and rural areas, large-scale development of H₂ energy technology is required. Biogas reforming is an auspicious process for the production of green hydrogen gas as well as for reducing overburden on natural gas. The main benefit of using biogas for H₂ production as a renewable energy source is reducing excessive burden on natural gas and greenhouse gas emissions. Nowadays, the importance of renewable H₂ production has increased due to many reasons such as depletion of fossil fuel reserves, global environmental issues, energy issues, and demand for pure H₂.