Desulphurization of fuels by liquid adsorption onto mesoporous materials

https://doi.org/10.1016/S0167-2991(05)80452-5Get rights and content

This work addresses the desulphurization of several commercial fuels using mesoporous materials as selective adsorbents. The influence of the pore size and the chemical composition of the adsorbent has been studied. Mesoporous materials based on Al, P and Si showed higher desulphurization levels than mesoporous SBA-15. Heavy fuels such as gas oil can be deeper desulphurized than naphtha or kerosene. The chemical composition and the pore diameter have a slight effect on the desulphurization rates. Heavy fuels desulphurization by adsorption seems to follow a physisorption mechanism. In this case adsorbate-adsorbent interactions decrease with temperature yielding lower desulphurization levels. On the other hand, diffusivities into the pores increase with temperature, compensating the previous effect. Regeneration experiments by solvent displacement showed that methanol, and dimethylformamide (DMF) could be used as adsorbent regeneration agents.

References (16)

  • I.V. Babich et al.

    Fuel

    (2003)
  • J.L. Sotelo et al.

    Stud. Surf. Sci. Catal.

    (2001)
  • J.L. Sotelo et al.

    Stud. Surf. Sci. Catal.

    (2002)
  • X. Ma et al.

    C. Song. Catal. Today

    (2002)
  • J.C. Zhang et al.

    Energy Conv. Managm.

    (2005)
  • L. Wang et al.

    Microporous Mesoporous Mater.

    (2004)
  • European Directive...
  • M.E. Davis

    Ind. Eng. Chem. Res.

    (1991)
There are more references available in the full text version of this article.

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