【摘要】 本文采用实验方法,在一个流化床反应器中研究160～750℃下水蒸气的存在对HCl脱除效率(RE)的影响。实验结果表明:在低温区,水蒸气对RE的影响不明显;380℃时水蒸气的存在抑制反应进行;580℃和750℃时,脱除效率先下降,当水蒸气含量达到15%时,又呈现上升趋势。对于水蒸气含量为5%、10%和15%情况下,580℃的脱氯效率最高。最后通过对暴露的反应物表面积和HCl气体穿越产物层扩散过程的分析解释实验得到的规律。更多还原

【Abstract】 In this paper,the effect of steam to HCl removal has been investigated in the temperature range from 160℃to 750℃in a fluidized-bed incinerator.The results show that:at 160℃,the effect of steam is not obvious.As the steam concentration increases,the RE decreases at 380℃.At 580℃and 750℃,the RE decrease at the steam concentration of 5%and 10%and increase at 15%.It also reveals that CaO react more completely at 580℃than other temperatures in the steam concentration of 5%,10%and 15%.It explains that the reaction process depends on the exposed surface area of the reactants and the diffusion process of gaseous HCl through the product layer.更多还原