Hydrogen Production Processes

This chapter discusses the state-of-the-art in terms of hydrogen production processes. At first, the steam reforming reactions of ethanol, biogas, and natural gas are introduced. A study on the catalysts being used in the selected reforming processes is also presented with their respective operating temperatures, feed molar ratio, and conversion rates of reagents. Afterwards, the electrolysis process and types of electrolyzers are presented with the renewable energy sources required for such, as well as the settings adopted for this type of hydrogen production processes. This chapter is concluded with the presentation of the biological hydrogen production process from green algae, with the description of the alga strain and methodology for determining the amount of hydrogen produced.

Palavras-chave

Biocatalyzed electrolysis, Biological hydrogen, Electrolyzers, Enzymatic hydrogen, Fermentative hydrogen, Gasification, Hydrogen production, Renewable electricity, Steam reforming, Water electrolysis