CAJ | 학술논문

为了有效和经济地脱除烟气中的硫，利用文献中的数据绘制不同温度下Mn?S?O系的热力学平衡图，从热力学角度说明使用氧化锰脱硫的可行性。提出最合适的烟气脱硫温度区间为600~800 K，而由于反应的强烈放热使得其能够维持操作的热平衡。天然锰矿由于其孔道结构而具有较大的表面积和较高的化学活性，使其脱硫效率可以保持在很高的水平。Mn?S?O与Fe?S?O系的叠加图中存在MnSO4和Fe2O3的重叠区域，说明可以通过选择性脱硫避免硫酸铁的形成。简单讨论了多级脱硫系统。
위료유효화경제지탈제연기중적류，이용문헌중적수거회제불동온도하Mn?S?O계적열역학평형도，종열역학각도설명사용양화맹탈류적가행성。제출최합괄적연기탈류온도구간위600~800 K，이유우반응적강렬방열사득기능구유지조작적열평형。천연맹광유우기공도결구이구유교대적표면적화교고적화학활성，사기탈류효솔가이보지재흔고적수평。Mn?S?O여Fe?S?O계적첩가도중존재MnSO4화Fe2O3적중첩구역，설명가이통과선택성탈류피면류산철적형성。간단토론료다급탈류계통。
For the purpose of effective and economic desulfurization of flue-gas, the predominance area diagram of the Mn?S?O system at different temperatures was constructed based on the thermodynamic data obtained from the literatures. It is seen from this figure that flue-gas desulfurization by manganese oxides is feasible from the thermodynamic point of view. Additionally, the most appropriate temperature range for flue-gas desulfurization is between 600 and 800 K, and the reaction is strongly exothermic to maintain the heat balance. The natural manganese ores encompass large tunnels that exhibit large surface areas and highly chemical activity, which can provide a high enough SO2 removing efficiency. From the superposition of the diagrams of Mn?S?O and Fe?S?O systems, it is found that there is a coexistent stability region of MnSO4 and Fe2O3, which provides the possibility of desulfurization by selective sulfation without ferric sulfate forming. A multi-stage desulfurization system has been discussed briefly.