Supercritical water gasification of Victorian brown coal: Experimental characterisation
Doki Yamaguchi, P John Sanderson, Seng Lim, Lu Aye
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2009
Supercritical water gasification is an innovative thermochemical conversion method for converting wet feedstocks into hydrogen-rich gaseous products. The non-catalytic gasification characteristics of Victorian brown coal were investigated in supercritical water by using a novel immersion technique with quartz batch reactors. Various operating parameters such as temperature, feed concentration and reaction time were varied to investigate their effect on the gasification behaviour. Gas yields, carbon gasification efficiency and the total gasification efficiency increased with increasing temperature and reaction time, and decreasing feed concentration. The mole fraction of hydrogen in the produ..View full abstract
Authors gratefully acknowledge the CSIRO Division of Petroleum Resources for providing the gas analysis instrumentation. The Department of Civil and Environmental Engineering of the University of Melbourne is acknowledged for the financial support of the experimental works and analyses. We are finally grateful for Dr. Adam Kosminski of the University of Adelaide for supplying the brown coal samples for this study.