摘要
本文对Hg与Cl2在烟气中的氧化反应进行了热力平衡计算和动力学计算。平衡计算的结果表明有CI元索存在时Hg的氧化率为100%,而在相同的条件下动力学计算纺果为Hg的氧化率在20%~80%之间变化,与实验结果吻合。实际的氧化反应是一种超平衡状态,不能达到理想的平衡状态。因此应采用动力学与热力平衡分析相结合的方法研究Hg在烟气中的反应机理。同时,计算结果显示Cl含量对Hg的氧化率的影响很大.
L: Mercury oxidation by chlorine is calculated with both thermal equilibrium analysis and chemical kinetics. The results of kinetic calculation show that the extent of mercury oxidation is 20-80%, which is consistent with the experimental data, while the extent of Hg oxidation is 100% by thermal equilibrium calculation under the same condition. It is found that combination of kinetic calculation and equilibrium analysis is preferred in the study of mercury oxidation in post-flame flue gas. Meanwhile, the calculation results also indicate a remarkable effect of Cl content on Hg oxidation rate.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2002年第3期384-387,共4页
Journal of Engineering Thermophysics
基金
国家重点基础研究专项经费资助项目(No.G1999022212-05)