Abstract: The light naphtha produced in the catalytic diesel hydro-conversion unit has light composition, high content of isomers and aromatics, especially high content of benzene, so it is not suitable to be used as gasoline blending component and reforming material of Branch Company. There is a large loss of benefit from selling it as ethylene material. By analyzing the composition of light naphtha and combining with the available old equipment and simulating calculation with RSIM software, the optimum scheme of removing benzene from light naphtha was selected and implemented to increase the production of foaming agent or production of high-quality gasoline blend components, and better economic benefits were obtained.

Key words: light naphtha, RSIM simulation, foaming agent, gasoline components