Abstract
Crude oil rail loadings are objects of considerable hydrocarbon emissions. A mathematical model of the process of oil vapor displacement during the loading of rail tanks is proposed in this article. This model makes it possible to determine approximately the parameters of hydrocarbon emission with a minimum of controlled parameters required during VRU operation (“Vapour recovery units – guidance on preventing and controlling…” 2008). The developed model has not tight coupling with the operations of rail tanks loading. The model can be applied with some corrections to calculate emissions during filling operations of any transport tanks. Obtained results allow to receive quantitative estimations of parameters of hydrocarbon emission with minimal vapor recovery units (VRU) availability of monitoring systems.
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