Hydrodesulfurization of dibenzothiophene using Pd-promoted Co-Mo/Al₂O₃ and Ni-Mo/Al₂O₃ catalysts coupled with ionic liquids at ambient operating conditions.

ABSTRACT: Sulfur compounds in fuel oils are a major source of atmospheric pollution. This study is focused on the hydrodesulfurization (HDS) of dibenzothiophene (DBT) via the coupled application of 0.5 wt% Pd-loaded Co-Mo/Al₂O₃ and Ni-Mo/Al₂O₃ catalysts with ionic liquids (ILs) at ambient temperature (120 °C) and pressure (1 MPa H₂). The enhanced HDS activity of the solid catalysts coupled with [BMIM]BF₄, [(CH₃)₄N]Cl, [EMIM]AlCl₄, and [(n-C₈H₁₇)(C₄H₉)₃P]Br was credited to the synergism between hydrogenation by the former and extractive desulfurization and better H₂ transport by the latter, which was confirmed by DFT simulat

SUBMITTER: Muhammad Y 

PROVIDER: S-EPMC9062605 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature