Cause analysis of abnormal discharge data of odor-treating device in a tank farm
Oil vapoe recovery equipment in raw material tanks adopts the adsorption+condensation+film treatment process to treat tank yard waste gas.In order to meet the regulatory requirements of the government,the discharge data of the device will be accessed to the online monitoring platform for control in 2021.In a certain period of time,the abnormal fluctuation of the online monitoring data of non-methane hydrocarbon at the discharge outlet was analyzed from the perspective of the abnormal process of waste gas treatment and the abnormal online monitoring results,and the abnormal high methane content on the top of a product tank was found to be the direct cause.According to the process of device inspection,the purging medium of the receiver of this product is methane,which is dissolved in the wax product and continuously released in the tank yard,resulting in an abnormal phenomenon of ultra-high methane concentration and high non-methane hydrocarbon concentration in the online monitoring data.After changing the purging medium of the receiver from methane to nitrogen,this problem was fundamentally solved.
Tank fieldOil vapor recoveryRecovery equipmentNon-methane hydrocarbonAbnormal data
NETL
NSTL
万方数据
