3
Acid Gas Control for Industrial Boilers
•HCl only acid gas in vacated MACT rule and NACAA guidance
•HCl limits for coal
§Vacated MACT: 0.09 lbs/MM Btu
§NACAA: 0.015-0.03 lbs/MM Btu
•Uncontrolled HCl emissions from coal
§0.03-0.15 wt.% Cl in coal
§0.024-0.125 lbs/MM Btu
• ~38-88% HCl removal required
§