| abstract |
An desulfurization method for a light oil which comprises a step of removing sulfur compounds in an light oil fraction by the adsorption with an adsorption desulfurization agent comprising a fibrous active carbon provided in an adsorption tower (1), and a desorption and regeneration step of washing the resulting adsorption desulfurization agent with an aromatic solvent to regenerate the desulfurization agent. The method allows the production of a light oil being satisfactorily freed of sulfur at a relatively low equipment and operation costs over a long period of time, and in the method, difficult-to-remove sulfur compounds, such as 4, 6-DMDBT, and multi-ring aromatic compounds having two or more rings are selectively removed. |