Reducing ammonia emissions and losses with coke-oven gas in absorbers

A new patented atomizer operates effectively in absorbers for the removal of ammonia from cokeoven gas. Its introduction reduces the ammonia losses with coke-oven gas from 0.05 to 0.025 g/m 3 (the standard is 0.03 g/m 3 ) and increases the yield of the corresponding byproduct—ammonium sulfate. The corrosive action of coke-oven gas in the plant’s gas channels is also reduced; the concentration of volatile ammonia in wastewater from the biochemical treatment system is reduced; and atmospheric emissions of ammonia are reduced to 78 t/yr. The inclination of the new centrifugal-jet atomizers and their relative geometric dimensions may be selected; the flame length and width may be adjusted to the required values, along with the intensity and dispersity of spraying. In our view, the new centrifugal-jet atomizers are also expedient for other systems.