Reaction Kinetics, Mechanisms and Catalysis
Volume/Issue:
Volume 101: Issue 1
Support effect in the hydrodesulfurization of thiophene over rhodium sulfide
Authors: Luděk Kaluža 1 , Zdeněk Vít 1 , and Miroslav Zdražil 1
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  • 1 Institute of Chemical Process Fundamentals v.v.i., Academy of Sciences of the Czech Republic, Rozvojová 135, 165 02 Prague 6, Suchdol Czech Republic
DOI:
https://doi.org/10.1007/s11144-010-0212-0
Page Count:
63–72
Publication Date:
01 Oct 2010
Online Publication Date:
25 Jun 2010
Article Category:
Research Article
Restricted access

Abstract

The effect of support on thiophene hydrodesulfurization activity over rhodium sulfide was studied. The loading was 5 wt% and the supports were (surface areas SBET in m2 g−1 in parenthesis): C (1100), Nb2O5 (99), ZrO2 (108), TiO2 (140), SiO2 (289), MgO (300) and 11 Al2O3 (77–279). The activity at 400 °C decreased in the order (relative activity in parenthesis): C (4.44), Al2O3 (0.98–0.32), Nb2O5 (0.54), ZrO2 (0.50), TiO2 (0.48), SiO2 (0.26), MgO (0.19), commercial CoMo/Al2O3 (1.00). The activity did not correlate with SBET, point of zero charge PZC of the support and the ratio S/Rh in the presulfided catalysts. The broad range of activities of Rh/Al2O3 illustrate that secondary factors such as SBET, texture, PZC, impurities and additives might be as important as the principal type of the support.

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Cover Reaction Kinetics, Mechanisms and Catalysis
Reaction Kinetics, Mechanisms and Catalysis
Print ISSN:
1878-5190
Online ISSN:
1878-5204
Keywords:
Hydrodesulfurization; Thiophene; Rhodium sulfide; Support effect

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