Hydrogen Production from Biogas: Methods and Economic Analysis

In present days, H2 is mainly produced via natural gas from thermochemical methods. The importance of renewable H2 production has increased due to energy issues, global environmental, fossil fuel depletion, and pure hydrogen demand. Biogas is produced from anaerobic digestion or carbon-based waste fermentation methods. It might be a substitute resource to the creation of hydrogen. Methane (CH4) and carbon dioxide (CO2) are two significant constituents of biogas, and these are multipurpose feedstock materials for the generation of valuable chemicals and fuels. This paper presents major hydrogen generation techniques from biogas reforming in detail and a short discussion of biogas reforming's economic analysis. The effective operating parameters such as reaction temperature, gas hourly space velocity and O2/CH4 ratio are also discussed. Biogas has more potential; however, it needs more research on some issues such as deactivation of the catalyst, purification of biogas and removable of H2S. Various reforming methods can be nominated for H2 production depend on biogas composition, the need for hydrogen purity, investment availability and quantity of the desired hydrogen.