PROCESS FOR THE DESULFURATION OF SPECIES COMPRISING ADSORPTION DESULFURATION OF LIGHT FRACTION AND HYDRODESULFURATION OF HEAVY FRACTION

摘要

The invention relates to a process for the desulfurization of gasolines comprising a step of fractionating said gasoline into a light fraction comprising thiophene compounds such as thiophene or methylthiophenes, and a heavy fraction concentrating the heaviest aromatic sulfur compounds. is treated by hydrodesulphurization, while the light fraction is brought into contact with a solid adsorbent for removing at least in part said light thiophene compounds, said adsorbent solid being regenerated by a flow internal to the process.