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通过固定床实验系统的烟气脱除零价汞实验，研究了活性炭纤维协同滤袋用聚酰亚胺、芳纶1313、聚苯硫醚、玻璃纤维、芳砜纶以及聚四氟乙烯等常用纤维，对烟气中零价汞的脱除效果。研究了改性前不同性能掺炭纤维，以及用质量分数分别为5％、10％、15％的溴化钾、碘化钾溶液改性后的活性炭纤维（activatedcarbonfiber,ACF）和聚苯硫醚（polyphenylenesulfide，PPS）形成的掺炭纤维，对模拟燃煤烟气中零价汞（Hg0）的吸附性能。结果表明：在汞蒸气入口浓度为30μg／m^3，吸附温度为160℃时，不同性能掺炭纤维脱Hg0率在39％71％范围之间变化，区别较大。经过溴化钾和碘化钾改性后的ACF＋PPS掺炭纤维对Hg0的吸附效率分别能达到80％、90％以上，未改性ACF＋PPS掺炭纤维的吸附效率最高也只有70％左右；相同质量分数时，碘化钾溶液改性后的ACF＋PPS掺炭纤维对Hg0的吸附效果要优于溴化钾溶液改性后的ACF＋PPS掺炭纤维，并且碘化钾溶液浓度越大，改性后的ACF＋PPS掺炭纤维对Hg0的吸附效果越好，当用质量分数为15％的碘化钾溶液改性后的ACF＋PPS掺炭纤维吸附Hg0一定时间后，对Hg0的脱除率可以达到98％以上，因此，经过改性后的掺炭纤维能保持较高的烟气脱Hg0率。“,”Absorption of gas-phase mercury （Hg0） in coal-fired flue gases by activated carbon fiber（ACF） cooperated with the filter bag with Polyimide （P84） and aramid 1313（NOMEX） polyphenylene sulfide （PPS）, glass fiber, polysulfonamide （PSA） and polytetrafluoroethene （PTFE）fiber were investigated in the fixed bed system. The ACF＋PPS doped fibers were modified respectively by adding 5%, 10%, 15% potassium bromide （KBr） and Potassium iodide （KI） solution. The results show that mercury removal efficiency of different properties of ACF-doped fibers vary widely, and the removal rate is between 39% and 71%, and adsorption efficiency of mercury （Hg0） by modified ACF＋PPS doped fibers with KBr and KI is above 80% and 90% separately when the inlet concentration of mercury is 30μg/m3 and the adsorption temperature is 160℃. The highest efficiency by non-modified ACF＋PPS doped fibers is just 70%. The results also indicated that ACF＋PPS doped fibers modified by KI had a better adsorption efficiency than doped fibers modified by KBr with the same mass fraction. And the higher the mass fraction of KI is, the better the adsorption efficiency of the Hg0 vapor. The adsorption efficiency is above 98% especially when using modified ACF＋PPS doped fibers by 15% KI after a certain time. So modified ACF＋PPS doped fibers can keep high Hg0 removal rate.