Abstract-This paper presents an efficient process to generate hydrogen, using aluminum dross particles activated by mechano-chemical methods and tap water with a pH value ≥ 10.4, obtained by adding of NH3 aqueous solution 25 wt%/L. The effect of pH value and aluminum amount on hydrogen yield has been studied. For these tests pure aluminium particles and aluminum dross were employed, and SEM analysis was used to study the changes in surface properties of metal occurring due to metal hydrolysis and hydrogen release. The obtained results show that the rate of hydrogen generation increases with the increasing of pH value and aluminum quantity. A hydrogen continuous device was designed and operated. The economical and environmental key aspects associated with the production of hydrogen, using Al dross, are discussed. The data obtained in this research can provide the basis for scale implementation of the aluminum dross hydrolysis process to generate H2 of high purity (>99.5 vol.%).
Keywords: aluminum dross; aluminum-water reaction; hydrogen generating; tap water; mechano-chemical activation;
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