ABS說用TRACT. The simultaneo家喝us removal of nitrogen oxides (體如NOx) and sulfur dioxide (SO2) by absorption is considered to 暗唱be one of the most promisi大姐ng technologies for flue ga他們s treatment, and sulfite is the main c商廠omponent of the absorption sol吧術ution. To understand the chemica空視l behaviors of the NO2 absorption in sulfite 河理solution, the absorption tim窗體e dependences of concentrations of nitr高你ogen and sulfur composi市體tions in both gas phase 視姐and liquid phases were 劇訊investigated by flue 樹腦gas analyzer, Ion chromatography (IC), 紅人Gas chromatography (GC), and Fouri影也er transform infrared spectrometry 舞件(FTIR) methods using a bubbling rea區體ctor. The mass equilibri嗎場um of the N and S compositio嗎日ns were also studied. The result黃裡s indicate that sulfite concentratio市路n plays a vital role 河新in NO2 absorption. Th朋玩e main absorption products are NO3− and NO2−, and NO2− can be converted into NO3− in the presence of oxygen. Besid做自es, about 4% to 9% by-products of S 話還compositions are form還內ed, and 4% to 11% by-products of答也 N compositions such as NO,東就 N2, N2O5, N2O, and HNO3 in the gas phase were detected i為懂n the emissions from the bubbli你民ng reactor. On the b志吧asis of N and S compositions, a 遠湖possible pathway of NO2 absorption in sulfite 答機solution was proposed.