Thermochemical hydrogen generation

Abstract

Hydrogen does not occur in the elemental form in nature. Currently about 95% of hydrogen is produced from hydrocarbons-the most economic route to make hydrogen. The remaining supply of hydrogen (?5%) is met by electrolysis of water-the most abundant source of hydrogen. In view of the accelerated depletion of the fossil fuels and the CO2-induced global warming, the humanity has to find a new and renewable source of hydrogen. A thermochemical route of hydrogen (H2) production employs heat or a combination of heat and O2/water to extract hydrogen bound to a fuel or water. � 2017 by Taylor and Francis Group, LLC.