Development of hydrodesulfurization catalyst using comparative model feed reactions and quantum chemical studies

H. Nakamura, M. Amemiya, R. Koide, E.J.M. Hensen, R.A. Van Santen, K. Ishida

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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Samenvatting

Model HDS catalysts (NiW, NiCoMo, NiMo, CoMo/γ-Al2O3) were used in the HDS of dibenzothiophene and 4,6-dimethyldibenzothiophene (4,6-DMDBT), with and without the addition of H2S or NH3. The highest HDS performance was achieved using NiCoMo catalyst in the presence of additives, while NiMo was the best catalyst in the absence of additives. The hydrogenation (HYD) selectivities of NiMo and NiCoMo catalysts were higher than that of CoMo. The presence of NH3 significantly decreased the overall reaction rate constant for the conversion of 4,6-DMDBT for the catalysts to a great extent. The addition of NH3 decreased significantly the reaction rate constant of CoMo catalyst. A comparison of the HDS reaction mechanism via HYD and the direct desulfurization (DDS) rate constants among catalysts showed that the ranking of HYD and DDS rate constants is dependent on the catalyst and the additives. This is an abstract of a paper presented at the 18th Saudi Arabia-Japan Joint Symposium (Dhahran, Saudi Arabia 11/16-17/2008).

Originele taal-2Engels
Titel18th Annual Saudi-Japan Symposium on Catalysts in Petroleum Refining and Petrochemicals,16-17 November 2008, Dhahran, Saudi Arabia
UitgeverijKing Fahd University of Petroleum and Minerals
Pagina's15-24
Aantal pagina's10
ISBN van geprinte versie9781605609508
StatusGepubliceerd - 1 dec 2008
Evenement18th Annual Saudi-Japan Symposium on Catalysts in Petroleum Refining and Petrochemicals - Dhahran, Saudi-Arabië
Duur: 16 nov 200817 nov 2008
Congresnummer: 18

Congres

Congres18th Annual Saudi-Japan Symposium on Catalysts in Petroleum Refining and Petrochemicals
LandSaudi-Arabië
StadDhahran
Periode16/11/0817/11/08

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  • Citeer dit

    Nakamura, H., Amemiya, M., Koide, R., Hensen, E. J. M., Van Santen, R. A., & Ishida, K. (2008). Development of hydrodesulfurization catalyst using comparative model feed reactions and quantum chemical studies. In 18th Annual Saudi-Japan Symposium on Catalysts in Petroleum Refining and Petrochemicals,16-17 November 2008, Dhahran, Saudi Arabia (blz. 15-24). King Fahd University of Petroleum and Minerals.