CAJ | 학술논문

采用固定床反应器研究了活性炭负载 V2 O5(V2 O5/AC)催化剂制备过程中各项参数对催化剂脱硝活性的影响。结果表明：HNO3预处理对于 V2 O5/AC 催化剂脱硝活性具有明显的促进作用，最佳的V负载量为3％；活性组分前驱体在450℃以上可完全分解，最佳的预氧化温度为230℃；当温度过高时，活性炭载体在预氧化过程中会与 O2反应，同时 V2 O5会在活性炭表面聚集，从而造成脱硝活性的下降；最佳条件下制备所得 V2 O5/AC 催化剂在实验条件下表现出高度稳定的脱硝性能，脱硝效率达90％。
채용고정상반응기연구료활성탄부재 V2 O5(V2 O5/AC)최화제제비과정중각항삼수대최화제탈초활성적영향。결과표명：HNO3예처리대우 V2 O5/AC 최화제탈초활성구유명현적촉진작용，최가적V부재량위3％；활성조분전구체재450℃이상가완전분해，최가적예양화온도위230℃；당온도과고시，활성탄재체재예양화과정중회여 O2반응，동시 V2 O5회재활성탄표면취집，종이조성탈초활성적하강；최가조건하제비소득 V2 O5/AC 최화제재실험조건하표현출고도은정적탈초성능，탈초효솔체90％。
The effects of preparation conditions of the activated carbon-supported vanadium oxide catalyst (V2 O5/AC)on its NOx removal activity were investigated in a fixed bed reactor.The results suggests that the HNO3 pretreatment can promote the NOx removal efficienty of the V2 O5/AC catalyst.The optimal load of V on V2 O5/AC catalyst is 3%.Further more,the precursor of the active component can be decomposed completely at above 450 ℃,and the optimal pre-oxidation temperature is 230 ℃.The activated carbon sup-porter will react with O2 when the temperature of prec-oxidation exceeds 230 ℃,leading to the V2 O5 aggre-gation on the activated carbon supporter.In conclusion a highly stable NOx removal performance can be a-chieved by the prepared V2 O5/AC catalyst,with a NOx reduction efficiency of 90%.