活性炭纤维的预处理及其SCR催化活性研究  

Study on the pre-treatment of activated carbon fibers and its activity in SCR

作　　者：沈伯雄[1] 周元驰[1] 史展亮[1] 杨婷婷[1] 

机构地区：[1]南开大学环境科学与工程学院,天津300071

出　　处：《燃料化学学报》2008年第3期376-380,共5页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(90610018);天津自然科学基金(06YFJMJC06200)

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.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.

关 键 词：活性炭纤维 选择性催化还原 氮氧化物 预处理 

分 类 号：X51[环境科学与工程—环境工程]