中文摘要：

随着中国能源工业的继续发展，氮氧化物排放相应政策法规的制定，烟气脱硝已经成为污染控制的重要组成部分。在多种脱硝方案中，选择性催化还原（Selective Catalytic Reduction，SCR）的效率最高。目前，商业SCR主要采用以V2O5／TiO2为主，添加一定量MoO3或WO3构成的催化剂，其活性温度窗口在350℃～400℃，一般布置在空气预热器前，然而烟气中的高灰高硫对于催化剂的活性和寿命都会有很大的影响。

英文摘要：

Pre-treatments of the viscose rayon based activated carbon fibers （ACFs） with acid （ HNO3 , H2SO4 , HCl） , alkali （NaOH） and steam were carried out to modify the surface characters of ACFs. The activities of ACFs for selective catalytic reduction （SCR） at lower temperature were tested. There is an increase in the content of functional group with oxygen on the surface of ACF and a decrease in micropore range for the ACF treated with HNO3. The new functional groups are formed for the ACF treated with H2SO4, HCl and NaOH, which can improve the activity of SCR, and an increase in micropore range for ACF treated with NaOH is found. However, the portion of mesopores increases but the catalytic activity of ACF decreases for the ACF treated with steam.