Hydrogen is one of the most promising next-generation fuels. It has the highest energy content per unit weight of any known fuel and in comparison to the other known natural gases it is environmentally safe - in fact, its combustion results only in water vapour and energy. This book provides an overview of worldwide research in the use of hydrogen in energy development, its most innovative methods of production and the various steps necessary for the optimization of this product. Topics covered include structured catalysts for process intensification in hydrogen production by reforming processes; bimetallic supported catalysts for hydrocarbons and alcohols reforming reactions; catalysts for hydrogen production from renewable raw materials, by-products and waste; Ni and Cu-based catalysts for methanol and ethanol reforming; transition metal catalysts for hydrogen production by low temperature steam reforming of methane; supercritical water gasification of biomass to produce hydrogen; biofuel starting materials for hydrogen production; modelling of fixed bed membrane reactors for ultrapure hydrogen production; hydrogen production using micro membrane reactors; perovskite membrane reactors; polymeric membrane materials for hydrogen separation; industrial membranes for hydrogen separation; multifunctional hybrid sorption-enhanced membrane reactors; carbon based membranes; and separation of hydrogen isotopes by cryogenic distillation. Hydrogen Production, Separation and Purification for Energy is essential reading for researchers in academia and industry working in energy engineering.