Effect of Aluminum Sulfate on Abrasion Ratio of TiO2-V2O5 Denitration Catalyst
-
摘要: 以硫酸铝为添加剂,通过脱硝催化剂制备工艺,制备出了高耐磨钒钛系脱硝催化剂。通过检测分析催化剂的磨损率、脱硝活性、孔结构分布及比表面积,研究了硫酸铝添加量对催化剂耐磨损性能、脱硝效率和微孔比表面积的影响,并探讨了硫酸铝提升脱硝催化剂耐磨性能的机理。研究结果表明,在650℃焙烧条件下,催化剂载体中的硫酸铝形成三维网络结构从而提升了催化剂的耐磨损性能。当硫酸铝添加量为10%时,催化剂磨损率0.079%/kg,比常规催化剂降低了28%左右。硫酸根的引入提高了催化剂的脱硝效率,当硫酸铝添加量为15%时,催化剂脱硝效率比常规催化剂提高了3.15%。Abstract: TiO2-V2O5 denitration catalyst with high wear resistance was prepared using aluminum sulfate as additive.Through analyzing the wear strength,denitration activity,pore structure and specific surface area of the catalyst,effects of aluminum sulfate additive were studied,and the mechanism of wear resistance improvement for the catalyst by aluminum sulfate was discussed.The results show that aluminum sulfate in the catalyst forms a three-dimensional grid to enhance the wear resistance of the catalyst at 650 ℃ of calcination temperature.When the addition amount of aluminum sulfate is 10 %,wear ratio of the catalyst is 0.079 %/kg,decreasing by about 28% compared to that of the conventional catalyst.The denitration efficiency of the catalyst is improved by introduction of sulfate,and the denitration efficiency of catalyst with 15 % of aluminum sulfate is 3.15% higher than that of the normal catalyst.
-
点击查看大图
计量
- 文章访问数: 27
- HTML全文浏览量: 9
- PDF下载量: 3
- 被引次数: 0
下载:
