In order to prepare for the impending Clean Air Mercury Rule (CAMR), utilities must have useful tools for compliance planning. We have previously developed fundamental models for mercury chemistry at various locations in coal-fired utility boilers and commonly used air pollution control devices (APCDs). The goal of the work presented here was to develop an integrated computational package that will be superior to what utilities now have available for mercury compliance planning. The paper presents case studies, using data taken from full-scale test programs, of the prediction of mercury speciation in a boiler at three different locations (economizer outlet, air preheater outlet and particulate control device outlet) and the prediction of mercury mass balances in the boiler and APCDs.
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