TY - JOUR
T1 - Prediction of the behaviors of H2S and HCl during gasification of selected residual biomass fuels by equilibrium calculation
AU - Kuramochi, Hidetoshi
AU - Wu, Wei
AU - Kawamoto, Katsuya
N1 - Funding Information:
The work described in this paper was funded by the Japanese Ministry of the Environment, Global Environment Bureau, Global Warming Protection Division.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005/3
Y1 - 2005/3
N2 - H2S and HCl released during biomass gasification can decrease the performance of high-temperature fuel cells in an Integrated Biomass Gasification Fuel Cell power-generating system. In this study, the behaviors of such poisonous gases during the gasification of different biomass fuels at various temperatures ranging from 673 to 1473 K were predicted using an equilibrium calculation approach. The predictions showed not only a difference in emission behaviors of HCl and H2S among the biomass fuels, but also a low HCl emission (below 10 ppmv) for a few of the fuels at any temperature. In addition, the influence of biomass metal composition and gasification temperature on emission behavior was investigated by analyzing the distribution of chlorine and sulfur compounds and the phase diagram of selected elements such as silicon and aluminum. Finally, we suggest that the addition of a potassium-rich biomass to a potassium-poor biomass has the potential to reduce the HCl emission during gasification and then to maintain the HCl concentration in gas phase below the tolerance concentration of the fuel cells.
AB - H2S and HCl released during biomass gasification can decrease the performance of high-temperature fuel cells in an Integrated Biomass Gasification Fuel Cell power-generating system. In this study, the behaviors of such poisonous gases during the gasification of different biomass fuels at various temperatures ranging from 673 to 1473 K were predicted using an equilibrium calculation approach. The predictions showed not only a difference in emission behaviors of HCl and H2S among the biomass fuels, but also a low HCl emission (below 10 ppmv) for a few of the fuels at any temperature. In addition, the influence of biomass metal composition and gasification temperature on emission behavior was investigated by analyzing the distribution of chlorine and sulfur compounds and the phase diagram of selected elements such as silicon and aluminum. Finally, we suggest that the addition of a potassium-rich biomass to a potassium-poor biomass has the potential to reduce the HCl emission during gasification and then to maintain the HCl concentration in gas phase below the tolerance concentration of the fuel cells.
KW - Biomass gasification
KW - Equilibrium calculation
KW - Poisonous gas for fuel cells
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U2 - 10.1016/j.fuel.2004.09.009
DO - 10.1016/j.fuel.2004.09.009
M3 - Article
AN - SCOPUS:10844273954
VL - 84
SP - 377
EP - 387
JO - Fuel
JF - Fuel
SN - 0016-2361
IS - 4
ER -