Adsorptive desulfurization of diesel fuel over a metal sulfide-based adsorbent

Xiaoliang Ma, Lu Sun, Chunshan Song

Research output: Contribution to journalConference article

19 Citations (Scopus)

Abstract

A study was carried out to develop a metal-sulfide-based adsorbent that not only can selectively adsorb sulfur compounds but can also be easily regenerated without using hydrogen gas. Two model diesel fuels (MD-1 and MD-2) were used. MD-1 contains the same molar concentration of dibenzothiophene (DBT), 4-methyldibenzothiophene, dimethyldibenzothiophene, and 1-methylnaphathalene. MD-2 contained only one sulfur compound, DBT. The total sulfur concentration in MD-1 and MD-2 is 486 and 200 ppm wt, respectively. The adsorption break-through curves for the regenerated adsorbents showed that the break-through curves for the first regenerated adsorbent and the second regenerated adsorbent coincide well with that for the fresh adsorbent, especially when the treated MD-2 amount was < 4 g/g. The adsorption capacity corresponding the break-through point at 10 ppm wt sulfur level for the first regenerated adsorbent and the second regenerated adsorbent was 0.65 and 0.66 mg-S/g-A, respectively. Thus, the spent adsorbent could be regenerable, and almost all adsorption capacity in the adsorbent could be recovered by the developed method.

Original languageEnglish (US)
Pages (from-to)522-523
Number of pages2
JournalACS Division of Fuel Chemistry, Preprints
Volume48
Issue number2
StatePublished - Sep 1 2003

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Desulfurization
Diesel fuels
Adsorbents
Metals
Sulfur compounds
Adsorption
Sulfur
Sulfides
Hydrogen
Gases

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

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abstract = "A study was carried out to develop a metal-sulfide-based adsorbent that not only can selectively adsorb sulfur compounds but can also be easily regenerated without using hydrogen gas. Two model diesel fuels (MD-1 and MD-2) were used. MD-1 contains the same molar concentration of dibenzothiophene (DBT), 4-methyldibenzothiophene, dimethyldibenzothiophene, and 1-methylnaphathalene. MD-2 contained only one sulfur compound, DBT. The total sulfur concentration in MD-1 and MD-2 is 486 and 200 ppm wt, respectively. The adsorption break-through curves for the regenerated adsorbents showed that the break-through curves for the first regenerated adsorbent and the second regenerated adsorbent coincide well with that for the fresh adsorbent, especially when the treated MD-2 amount was < 4 g/g. The adsorption capacity corresponding the break-through point at 10 ppm wt sulfur level for the first regenerated adsorbent and the second regenerated adsorbent was 0.65 and 0.66 mg-S/g-A, respectively. Thus, the spent adsorbent could be regenerable, and almost all adsorption capacity in the adsorbent could be recovered by the developed method.",
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Adsorptive desulfurization of diesel fuel over a metal sulfide-based adsorbent. / Ma, Xiaoliang; Sun, Lu; Song, Chunshan.

In: ACS Division of Fuel Chemistry, Preprints, Vol. 48, No. 2, 01.09.2003, p. 522-523.

Research output: Contribution to journalConference article

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AB - A study was carried out to develop a metal-sulfide-based adsorbent that not only can selectively adsorb sulfur compounds but can also be easily regenerated without using hydrogen gas. Two model diesel fuels (MD-1 and MD-2) were used. MD-1 contains the same molar concentration of dibenzothiophene (DBT), 4-methyldibenzothiophene, dimethyldibenzothiophene, and 1-methylnaphathalene. MD-2 contained only one sulfur compound, DBT. The total sulfur concentration in MD-1 and MD-2 is 486 and 200 ppm wt, respectively. The adsorption break-through curves for the regenerated adsorbents showed that the break-through curves for the first regenerated adsorbent and the second regenerated adsorbent coincide well with that for the fresh adsorbent, especially when the treated MD-2 amount was < 4 g/g. The adsorption capacity corresponding the break-through point at 10 ppm wt sulfur level for the first regenerated adsorbent and the second regenerated adsorbent was 0.65 and 0.66 mg-S/g-A, respectively. Thus, the spent adsorbent could be regenerable, and almost all adsorption capacity in the adsorbent could be recovered by the developed method.

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