Technical Bulletin No. 0837: Emissions of Sulfuric, Hydrochloric, and Hydrofluoric Acids from Combination Bark Boilers
Four coal/bark boilers and two residual oil/bark boilers were tested for sulfuric acid (H2SO4), hydrochloric acid (HCl), and hydrofluoric acid (HF) emissions during this study. Two of the four coal/bark boilers were equipped with dry electrostatic precipitators (ESP) and two were equipped with venturi scrubbers. One of the two residual oil/bark boilers was equipped with a dry gravel scrubber while the other was equipped with an ESP.