This study investigated the catalytic activity of vanadium-manganese supported on USY-zeolite as a catalyst for low-temperature NO removal, and embedded the powder catalyst in PTFE filter of bag filter. The V₂O₅-MnO₂/USY-zeolite catalyst was prepared using the co-impregnation method, and the V₂O₅/MnO₂ ratio was 0/10, 2.5/7.5, 5/5, 7.5/2.5, or 10/0. The catalytic activity test for NH₃-SCR(selective catalytic reduction) of NO was performed at 150–230 °C. An enhanced NO conversion above 60% was exhibited in the low-temperature region below 230 °C, and the NO removal efficiency increased as the MnO₂ content increased. The NH₃-TPD and NO-TPD(Temperature Programmed Desorption) analysis confirmed that the NH₃ adsorption of the catalyst more significantly influences the NO removal performance than the NO adsorption. As the MnO₂ content on the catalysts increased, the strength and amount of adsorbed NH₃ increased, resulting in enhanced NO conversion. The catalyst-embedded PTFE (polytetrafluoroethylene) fiber was prepared by extruding physically mixed PTFE and catalyst powder. Scanning electron microscopy/energy dispersive X-ray spectroscopy confirmed that the catalyst was well dispersed on the surface and inside the PTFE fiber. The NO removal performance of the catalyst included PTFE fiber increased as the amount of the catalysts added was increased.

本研究考察了负载在USY-沸石上的钒锰作为低温NO脱除催化剂的催化活性，并将粉末催化剂嵌入到布袋除尘器的PTFE滤芯中。V ₂ O ₅ -MnO ₂ /USY-沸石催化剂采用共浸渍法制备，V ₂ O ₅ /MnO ₂比为0/10、2.5/7.5、5/5、7.5/2.5或10/0。_{NO的NH 3} -SCR（选择性催化还原）催化活性测试在150-230℃下进行。在低于 230 °C 的低温区域，NO 转化率提高到 60% 以上，并且 NO 去除效率随着 MnO ₂含量的增加而增加。新罕布什尔州₃ -TPD和NO-TPD(Temperature Programmed Desorption)分析证实催化剂的NH ₃吸附比NO吸附对NO脱除性能的影响更显着。随着催化剂上MnO _{2含量的增加，吸附的 NH 3}的强度和数量增加，导致 NO 转化率提高。通过挤出物理混合的 PTFE 和催化剂粉末制备催化剂嵌入 PTFE（聚四氟乙烯）纤维。扫描电子显微镜/能量色散 X 射线光谱证实催化剂很好地分散在 PTFE 纤维的表面和内部。随着催化剂添加量的增加，含PTFE纤维的催化剂脱硝性能提高。