6
HCl Control Technologies
•Pulverized or stoker coal combustion
§Furnace sorbent injection
­Lime/limestone or sodium-based
§Sorbent injection ahead of baghouse
­Lime or sodium-based
§Wet scrubber with water
­Recovers HCl or CaCl2 solution as byproduct
­> 90% HCl removal
§Dry FGD/baghouse after existing ESP
­Solid byproduct separate from flyash