Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10273327 | Fuel | 2005 | 11 Pages |
Abstract
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 1473Â 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 10Â 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.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Hidetoshi Kuramochi, Wei Wu, Katsuya Kawamoto,