活性炭纤维载体催化剂及其低温选择性催化还原脱硝性能研究  

Experimental study on selective catalytic reduction of NO at low temperature by active carbon fibers supported copper oxide and zirconium catalyst

作　　者：王学涛[1] 胡海鹏[1] 苏晓昕[1] 张小龙[1] 兰维娟[1] 刘春梅[1] 

机构地区：[1]河南科技大学能源与动力工程系,河南洛阳471003

出　　处：《热力发电》2017年第10期47-51,共5页Thermal Power Generation

基　　金：国家自然科学基金项目(50806020);河南省科技创新人才计划(杰出青年)(114100510010);河南省科技厅科技攻关项目(152102210280)~~

摘　　要：低温下催化剂活性和抗毒性不足限制了低温选择性催化还原(SCR)脱硝工艺的工业应用。采用超声波浸渍法以活性炭纤维为载体,负载CuO、ZrO_2制备催化剂,通过比表面积测试、X射线衍射分析、扫描电镜等手段对催化剂进行表征,并利用固定床反应器探讨其低温SCR脱硝性能,考察了经浓硝酸处理后的活性炭纤维、CuO与ZrO_2单独作为活性组分、CuO与ZrO_2同时作为活性组分对脱硝活性的影响。结果表明:相对于系列CuO/ACFN、系列ZrO_2/ACFN催化剂,系列CuO-ZrO_2/ACFN催化剂的低温脱硝性能有较大的优势,3:1CuO-ZrO_2/ACFN催化剂在260℃时脱硝效率最大值为92%。On the basis of a fixed-bed reactor, the influence of copper and zirconium that supported by activated carbon fiber （ACF） on the denitration activity was studied. The denitrition efficiency with the nitric acid disposed ACF, CuO and ZrO2 as the active components alone, and the CuO with ZrO2 as the active components simultaneously, was investigated. The results show that, compared with the CuO/ACFN catalysts and the ZrO2/ACFN catalysts, the low temperature denitration performance of the CHO-ZrO2/ACFN catalysts has greater advantage. Besides, the denitration efficiency of the 3：1CuO-ZrO2/ACFN catalyst reached the maximum 92% at 260 ℃.

关 键 词：活性炭纤维 烟气脱硝 低温SCR Cu O ZR O2 催化剂 

分 类 号：TQ426.94[化学工程] X511[环境科学与工程—环境工程]