Results of Dry Sorbent Injection Testing to Reduce HCI

摘要

Power plants currently having no flue gas treatment beyond particulate removal and possibly SCR for NO_x control are facing the need to comply with pending new regulations. The EPA Mercury and Air Toxics Standards (MATS), formerly referred to as the Utility MACT, require among other HAPS control of HCl emissions in plants that do not already treat acid gases. The Cross State Air Pollution Rule (CSAPR) requires control of SO_2 to within allotted emission credits. Carmeuse Lime participated in dry sorbent injection tests using hydrated lime at several plants. Hydrated lime was injected at two different flue gas temperatures and successfully met the objective of reducing HC1 emissions of the plant to under 0.002-lb. HCl/million BTU. SO_2 emissions were also tracked.