蓄热焚烧/蓄热催化氧化焚烧双模式处理VOCs技术在工程实践中的应用研究

摘要

焚烧法作为综合性能优越的处理挥发性有机化合物(VOCs)技术,在目前国内VOCs治理形势严峻的背景下得到广泛应用.蓄热催化氧化焚烧(RCO)因其先进的工艺技术,性能、经济指标均优于其他焚烧处理方式.通过数值模拟计算,比较了燃烧器改造前与改造后炉内温度场分布情况,得出在燃烧器出口增设护火筒,并在护火筒上开一定数量规格的圆孔,可以解决前期实际工程案例中出现的催化剂高温中毒问题,并在后续工程案例中得以成功应用.设计阶段炉体设计参数按照蓄热焚烧炉(RTO)进行,可以实现在使用中RTO/RCO双模式切换,以达到不因为新技术应用风险影响上游装置正常运行的目的.%As a VOCs treatment technology with superior performance,incineration is widely used under the background of grim situation of treating VOCs in China.Regenerative catalytic oxidizer (RCO) is better than other incineration methods in performance and economic indicators because of its advanced process technology.Through numerical simulation,furnace temperature distribution before and after reconstruction of burner is compared.Adding fire protection tube in the outlet of the burner,and opening a certain number of round holes in the fire protection tube can solve the problem of poisoning the catalyst for high temperature in the actual project case,and has been applied successfully in following project case.In the design stage,the parameters are carried out according to the regenerative thermal oxidizer (RTO),and RTO/RCO dual mode switching can be implemented in order to achieve the normal operation of upstream devices without the risk of new technology application.