CAJ | 학술논문

根据低品位软锰矿脱硫反应的吉布斯自由能（ΔG）、反应平衡常数（K ）、平衡时SO2的分压，得到ΔG‐T关系式，分析了低品位软锰矿用于烧结烟气干法脱硫的可能性。由不同温度下的ΔG及平衡常数表达式推导出M n‐S‐O系中所有反应的 p（SO2）与 p（O2）的关系，绘制出M n‐S‐O系相图。结果表明：在烧结烟气排放范围内，直接利用低品位软锰矿脱除烟气中的SO2在热力学上具有较大的可行性，温度和总压对M nSO4稳定区域影响不大。
근거저품위연맹광탈류반응적길포사자유능（ΔG）、반응평형상수（K ）、평형시SO2적분압，득도ΔG‐T관계식，분석료저품위연맹광용우소결연기간법탈류적가능성。유불동온도하적ΔG급평형상수표체식추도출M n‐S‐O계중소유반응적 p（SO2）여 p（O2）적관계，회제출M n‐S‐O계상도。결과표명：재소결연기배방범위내，직접이용저품위연맹광탈제연기중적SO2재열역학상구유교대적가행성，온도화총압대M nSO4은정구역영향불대。
The function relationship between ΔG (Gibbs free energy ) and T (thermodynamic temperature) is obtained by calculating ΔG ,K (equilibrium constant ) ,SO2 partial pressure at equilibrium state of desulphurization reactions by low grade pyrolusite from sintering flue gas .The possibility of dry desulfurization from sintering flue gas using low grade pyrolusite is analyzed further . The relationship between p(SO2 ) and p(O2 ) of all reactions in Mn‐S‐O system are deduced and phase diagram of Mn‐O‐S is drawed based on ΔG at different temperature and the expression of equilibrium constant .T he results indicate that at the range of sintering flue gas temperature ,removal of SO2 using directly low grade pyrolusite has a greatly thermodynamic feasibility ,and temperature and total pressure have weak influences on the stable region of MnSO4 .