ガラス溶解炉半乾式脱硫装置へのプラズマ複合脱硝技術の応用

抄録

Nitrogen oxides (NO_x) and sulfur oxides (SO_x) are the major components of environmental pollution; therefore they should be removed. In this study, NO oxidation process by using ozone gas and NO_x removal process by using Na₂SO₃ solutions combined with semi-dry desulfurization equipment to glass melting furnace were investigated. Experiments were carried out with varying gas-liquid reaction time in the lab-scale experiment and Na₂SO₃ concentration in the pilot-scale experiment. In the lab-scale experiment, NO_x removal efficiency was reached 64.9 % in maximum. Furthermore, in the pilot-scale experiment, when the ratio of the amount of ozone gas to the amount of NO in the exhaust gas was 23 %, NO_x removal efficiency was reached up to 17.0 %. There was no effect on desulfurization by applying plasma-chemical hybrid process to semi-dry desulfurization equipment.