High-purity hydrogen gas production by catalytic thermal decomposition using mechanochemical treatment

• Main Authors: Kumproa,K., Nuntiya,A., Zhang,Q., Kano,J., Saito,F.
• Format: Conference or Workshop Item
• Published: Elsevier Limited 2015
• Subjects: Fuel Technology; Energy Engineering and Power Technology; Renewable Energy, Sustainability and the Environment; Condensed Matter Physics
• Online Access: http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84913553244&origin=inward; http://cmuir.cmu.ac.th/handle/6653943832/38817
• Institution: Chiang Mai University

© 2014 Hydrogen Energy Publications, LLC. The objectives of this work, were to produce high-purity hydrogen gas from rice husk by two-step process and to study the effect of nickel hydroxide/nickel acetate/sodium acetate and calcium hydroxide on the concentration of gaseous products. The samples were characterized by X-ray diffraction (XRD) and thermogravimetry-mass spectroscopy (TG/MS). The gaseous products were analyzed by gas chromatography (GC). The results indicated that hydrogen gas was produced from the milled samples by heating at 400-600 °C with the low concentrations of methane, carbon monoxide and carbon dioxide. The highest concentration of hydrogen gas from milled samples with the catalyst, was approximately 95-97 %mol. Furthermore, the milled samples with the carbon dioxide capture agent gave the carbon dioxide concentration, was below 2 %mol.