DSI를 이용한 탈황 및 질소산화물 부분산화 반응에 관한 연구

Study on the Desulfurization and Partial Oxidation of NO using the DSI Process

The objective of this study is to investigate partial oxidation of NO with desulfurization in dry sorbent injection(DSI) process using dry sorbent and additives. The effect of the main operating variables directly related to desulfurization efficiency has been also tested. These variables are Ca/S ratio, temperature, inlet SO2 concentration and gas flow rate. The experiment was carried out for partial oxidation of NO with desulfurization in dry sorbent injection process using NaClO₂ and CaCl₂. The experimental results showed that partial oxidation of NO with desulfurization was increased in DSI process using little NaClO₂. It was also found that the injection of CaCl₂ was effective in increasing only SO₂ removal efficiency. Increase of SO₂ removal performance and promotion of partial oxidation of NO using the two additives at low temperature was confirmed.