Title: Supercritical water gasification of ethanol fermentation residue of seaweed: effect of sodium chloride salt

Authors: Mohd Hafif Basha bin Mohamad Jamel Basha; Yukihiko Matsumura; Yutaka Nakashimada; Toshinori Tsuru; Tomoaki Minowa; Yasufumi Mishima

Addresses: Thermal Engineering Laboratory, Division of Energy and Environmental Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, Japan ' Thermal Engineering Laboratory, Division of Energy and Environmental Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, Japan ' Biochemical Engineering, Anaerobic Metabolic Engineering, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, Japan ' Department of Chemical Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan ' Biomass System Technology Team, Biomass Technology Research Center, National Institute of Advanced Industrial Science and Technology (AIST) Chugoku, Kagamiyama 3-11-32 Higashi-Hiroshima, Hiroshima 739-0046 Japan ' Civil Engineering Environmental System, National Institute of Advanced Industrial Science and Technology (AIST) Chugoku, Kagamiyama 3-11-32 Higashi-Hiroshima, Hiroshima 739-0046 Japan

Abstract: The effects of sodium chloride salt on the supercritical water gasification of ethanol fermentation residue of seaweed with and without the presence of catalyst (activated carbon) were investigated. The presence of activated carbon did not affect the carbon gasification efficiency. By increasing the salt concentration, the carbon gasification efficiency is reduced until one point, the carbon gasification efficiency remains constant. Based on the result, the kinetics of the reaction is analysed.

Keywords: supercritical water gasification; seaweed; aquatic biomass; salt; sodium chloride; activated carbon; ethanol fermentation residue; reaction kinetics; carbon gasification efficiency.

DOI: 10.1504/IJNBM.2014.061807

International Journal of Nano and Biomaterials, 2014 Vol.5 No.1, pp.3 - 13

Published online: 30 Jun 2014 *

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