Reactor Modeling to Evaluate the Effect of Reactions Mass Balances on Sulfur Removal in Gasoil HDT

The impact of including different mass balance equations for HDT reactions on sulfur compound removal was evaluated through reactor modeling using a previously proposed kinetic model. the model considers major HDT reactions (HDS, HDN, HDA, HGO, and HCR), with HDS divided into three lumps based on compound refractiveness. Liquid and gas phase balance equations were used to predict partial pressure and concentration profiles. Simulations with and without each mass balance equation assessed their effect on sulfur concentration predictions and hydrogen consumption. Including mass balance equation for nitrogen compounds showed the strongest effect on the prediction of product sulfur compounds.