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| | Calculation model of chemical thermal dynamical equilibrium is used to predict the chemical speciation of mercury in coal fired flue gas. The results of prediction are correspondent to the experimental results from some foreign researchers, and some possible reactions of mercury in flue gas are proposed into gases in form of elemental mercury, and the existence of chlorine in flue gas greatly enhances the evaporation of mercury. As the flue gas being cooled, elemental mercury reacts with o... | | 采用化学热力学平衡计算模型预报了汞在燃煤烟气中的化学形态分布 ,模型预报结果与国外研究者的实验结果比较符合 ;指出了汞在燃煤烟气中可能进行的化学反应 .研究表明在炉膛内的燃烧温度下 ,汞将蒸发并以单质汞的形态存在于气相之中 ,氯元素的存在可以大大增强汞的蒸发 ,随着烟气温度降低 ,单质汞会与烟气中的其他成分发生一系列化学反应 ,最终大部分汞将以氯化汞的形态随烟气排放到环境中 | | 文摘来源 | | Taking into account of the none local thermal dynamical equilibrium processes, the X-ray and EUV spectra of Be-like O ions are calculated using the relativistic multi-configuration atomic package FAC. The effects of indirect processes of on the X-ray and EUV spectra of the Be-like O ions are studied. Three models are used to simulate the X-ray and EUV spectra. We find that these indirect processes are important to calculate the X-ray spectra of the Be-like O ions. | | 根据非局域热动平衡状态下谱线形成理论,利用相对论多组态原子程序软件包FAC模拟了类铍氧离子的X射线及EUV光谱.分析了间接过程对类铍氧离子X射线及EUV光谱形成的影响.在典型天体等离子体密度(ne=1010/立方厘米)情况下,采用了3种模型,在不同温度下模拟X射线及EUV光谱形成过程,分析比较了间接过程对谱线形成的贡献,并给出了它们的速率系数,得出了在谱线形成过程中,间接过程具有非常重要的作用. | | 文摘来源 | |   |
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