volume 147, issue 3, P209-221 2006
DOI: 10.1016/j.combustflame.2006.08.005
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Constance L. Senior, David O. Lignell, Adel F. Sarofim, Arun Mehta

Abstract: Vapor-phase arsenic in coal combustion flue gas causes deactivation of the catalysts used in selective catalytic reduction (SCR) systems for NO x control. A one-dimensional model has been developed to predict the behavior of arsenic in the postcombustion region of a coal-fired boiler as a function of gas residence time. The purpose of the model is to calculate the partitioning of arsenic between the vapor phase from volatilization and arsenic on the ash particles due to surface reaction and/or condensation at…

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