沸石转轮浓缩及蓄热氧化处理印刷挥发性有机废气OA

Taking the VOCs exhaust gas from the floor color film printing process as the research object,a detailed design was conducted on the process parameters and equipment parameters of the zeolite runner concentration and RTO system.Analysis and demonstration were conducted on the heat recovery efficiency,purification efficiency,standard emissions,and energy consumption.The results show that key process parameters such as intake concentration,combustion temperature,residence time,heat recovery efficiency,purification efficiency,and system pressure drop have been designed and calculated,which meets technical specifications of HJ1093-2020;The daily average heat recovery efficiency of RTO ranges from 94.04%to 95.10%,which meets 95%design expectations;The daily average purification efficiency of the zeolite rotary device for BAC and NMHC meets 95%of the design expectation;The daily average purification efficiency of the RTO device for BAC and NMHC is slightly lower than the design expectation of 99.9%,and it is inferred that the possible reason is the slight leakage of the inlet and outlet zero leakage vertical lift valve;The emission concentration and rate of BAC meet emission standard of DB32/4438-2022,while the emission concentration and rate of NMHC meet emission standard of DB32/4438-2022;During normal operation of the system,the hourly consumption of electricity and natural gas is converted to 15.61kg of standard coal.