Nuclear Production of Hydrogen

Second Information Exchange Meeting -- Argonne, Illinois, USA 2-3 October 2003

image of Nuclear Production of Hydrogen

Hydrogen has the potential to play an important role as a sustainable and environmentally acceptable source of energy in the 21st century. Present methods for producing hydrogen are mainly based on the reforming of fossil fuels with subsequent release of greenhouse gases. To avoid producing greenhouse gases, the possibility to use heat and surplus electricity from nuclear power plants to produce hydrogen by water cracking is being investigated. This report presents the state of the art in the nuclear production of hydrogen and describes the scientific and technical challenges associated with it.



Hydrogen Production by Water Dissociation Using Mixed Conducting Membranes

Nuclear Energy Agency

Water dissociates into oxygen and hydrogen at high temperatures. The problem with exploiting this reaction is that very low concentrations of hydrogen and oxygen are generated even at relatively high temperatures (e.g., only 0.1 and 0.042% for hydrogen and oxygen, respectively, at 1 600°C), because the equilibrium constant for this reaction is small. However, significant amounts of hydrogen or oxygen can be generated at moderate temperatures if the equilibrium is shifted toward dissociation by either oxygen or hydrogen removal using a mixedconducting (both electrons and ions) membrane...


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