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Analyses of solid streams from a pilot-scale coal gasifier equipped with hot-gas filtration at 580 o C have indicated that all coal-derived mercury was carried away by the fuel gas. Calculations using a thermodynamic equilibrium model have confirmed that there was little potential for removal of mercury in the hot gas filter at these temperatures. In this work, several experimental capture/recovery...
The volatility of mercury can cause large errors during quantification when methods based on acid digestion are applied. In this study, mercury levels in coals have been determined by an atomic-absorption- based instrument hitherto not used with coals or coal-derived materials. The results have been compared with ?certified? values of reference materials. The instrument is relatively easy to use:...
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