Thermo-catalytic decomposition of propane to solid carbon and hydrogen was examined for hydrogen production without CO2 emission. The reaction was carried out over a carbon black catalyst in a bench-scale fluidized bed reactor. Effects of reaction temperature on the propane conversion and product distribution were examined. Catalytic activity of the carbon black was maintained stable for longer than 8 h in spite of carbon deposition. From 600 to 650 degrees C, the propane conversion increased sharply with propylene produced in a considerably larger amount than methane. As the reaction temperature further increased up to 800 degrees C, the major hydrocarbon product was methane; the production of propylene decreased rapidly and ethylene was the next most abundant product. The surface area of the carbon black was decreased as the reaction proceeded due to carbon deposition. Surface morphology of the used carbon black was observed by TEM and the change of the aggregates size was measured. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.