WSH-2型催化剂在环氧丙烷/苯乙烯装置废气处理中的工业应用

介绍了WSH-2型催化剂在环氧丙烷（PO）/苯乙烯（SM）装置废气处理中的应用。工业化装置的运行结果表明，在废气处理量86 000 Nm³/h、设定反应器进口温度250~300 ℃、设定进口非甲烷总烃（NMHC）质量浓度1 000~2 200 mg/m³的条件下，无论单系列还是双系列运转，采用WSH-2型催化剂均可对废气进行有效处理。处理后气体中的NMHC、苯、甲苯、乙醛、SM等的含量均符合GB 16297—1996《大气污染物综合排放标准》和GB 14554—1993《恶臭污染物排放标准》中的相关规定。NMHC去除率达到92.9%以上，装置运行稳定。按照目前的废气排放工况推算，预计催化剂的使用寿命可达5 a。

Industrial Application of WSH-2 Catalyst in Treatment of PO/SM Waste Gas

The industrial application of WSH-2 catalyst in the treatment of waste gas from propylene oxide/styrene monomer(PO/SM) device is introduced. The application results show that PO/SM waste gas can be effectively treated by WSH-2 catalyst in both simple and double operation system under the conditions of treatment capacity 86 000 Nm³/h,set inlet temperature 250-300 ℃ and inlet total non-methane hydrocarbon(NMHC) mass concentration 1 000-2 200 mg/m³. The contents of NMHC,benzene,toluene,acetaldehyde,SM in the treated gas can meet the national emission standards of GB 16297-1996 and GB 14554-1993. The removal rate of NMHC is over 92.9%,and the device works steadily. According to the existing waste gas emission,the service life of the catalyst is expected for 5 years.