近绝热饱和温度对聚丙烯腈基活性碳纤维脱除烟气中SO2的影响
Effect of approach to adiabatic saturation temperature on flue gas desulfurization by PAN-ACF
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摘要: 聚丙烯腈基活性碳纤维(PAN-ACF)是一种较新型的碳材料.应用聚丙烯腈基活性碳纤维对模拟烟气中SO2进行了吸附脱除实验,分别考察了烟气温度和烟气中水蒸气体积分数改变烟气的近绝热饱和温度对PAN-ACF脱除烟气中SO2效率的影响.实验结果表明,PAN-ACF具有良好的脱硫性能,近绝热饱和温度是影响其脱硫效率的重要因素.随着近绝热饱和温度的逐渐增大,PAN-ACF的脱硫效率呈现先增大后减小的变化趋势.通过改变烟气温度和改变水蒸气体积分数来改变烟气的近绝热饱和温度时,在相同的近绝热饱和温度条件下,PAN-ACF的脱硫效率是不同的,且脱硫效率随近绝热饱和温度改变而变化的趋势也不同.Abstract: The polyacrylonitrile-based activated carbon fiber(PAN-ACF) is one kind of newer carbon material.Adsorption and removal experiments of SO2 in simulated flue gas by PAN-ACF were carried out.The influences of approach to adiabatic saturation temperature(AAST) on the desulfurization efficiency were investigated by changing the flue gas temperature and the volume fraction of vapor,respectively.The results show that PAN-ACF has effective desulfurization performance,AAST is the important influencing factor on the desulfurization efficiency,and the desulfurization efficiency increases at first and then decreases with increasing AAST.By comparison,the desulfurization efficiency of PAN-ACF at the same AAST by changing the flue gas temperature differs from that by changing the volume fraction of vapor,and their changing tendencies with AAST are also different.
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