排序方式: 共有33条查询结果,搜索用时 15 毫秒
31.
以过一硫酸氢盐(PMS)作为氧化剂,利用化学吸收氧化法去除甲硫醇(CH3SH)恶臭气体.研究了p H(2~13)对CH3SH吸收过程、PMS氧化降解CH3SH过程的影响.结果表明,PMS不同于H2O2,在p H小于CH3SH p Ka(10.3)的弱碱性条件(p H=8~10)下,也可以有效去除CH3SH,而此时H2O2对CH3SH没有去除效果.可能的原因是,在弱碱性条件(p H=8~10)下PMS或可能产生的活性物种在气液相界面直接快速氧化CH3SH分子. 相似文献
32.
文丘里喷射器用于饮食业油烟雾处理的实验研究 总被引:1,自引:0,他引:1
将文丘里喷射器用于饮食业油烟雾的湿法处理,实验对喷射器的结构进行了系统的研究,找出了喷射器的最佳结构参数,并进行了该装置的净化性能应用试验。结果表明:该湿法洗涤装置净化效率高,运行稳定,具有较高的应用推广价值。 相似文献
33.
Lina GAN Shan LEI Jian YU Hongtao MA Yo YAMAMOTO Yoshizo SUZUKI Guangwen XU Zhanguo ZHANG 《Frontiers of Environmental Science & Engineering》2015,9(6):979-987
Monolith SCR catalysts coated with V2O5-WO3/TiO2 were prepared by varying binder and coating thickness. Comparing with a monolith extruded with 100% V2O5-WO3/TiO2 powder, a coated monolith with a catalyst-coating layer of 260 μm in thickness exhibited the similar initial NOx reduction activity at 250°C. After 4 h abrasion (attrition) in an air stream containing 300 g·m−3 fine sands (50–100 μm) at a superficial gas velocity of 10 m·s−1, the catalyst still has the activity as a 100% molded monolith does in a 24-h activity test and it retains about 92% of its initial activity at 250°C. Estimation of the equivalent durable hours at a fly ash concentration of 1.0 g·m−3 in flue gas and a gas velocity of 5 m·s−1 demonstrated that this coated monolith catalyst is capable of resisting abrasion for 13 months without losing more than 8% of its initial activity. The result suggests the great potential of the coated monolith for application to de-NOx of flue gases with low fly ash concentrations from, such as glass and ceramics manufacturing processes. 相似文献