Cesium concentration effect on Pt/Cs beta zeolite/γ-alumina catalysts for n-heptane conversion

Cesium concentration effect on Pt/Cs beta zeolite/γ-alumina catalysts for n-heptane conversion

Catalytic behavior of platinum catalysts supported on Cs beta zeolite/γ-alumina, for n-heptane reforming reactions, was studied. Cs concentration in the beta zeolite varied from 0 to 0.84 wt.%, in order to neutralize Brönsted acid sites. Increase in Cs content leads to decrease cracking products, bu...

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Bibliographic Details
Published in:Applied catalysis. A, General Vol. 231; no. 1; pp. 117 - 123
Main Authors: Espinosa Sntamaaria, G., Bautista, J.M., Silva, H., Muñoz, L., Batina, N.
Format: Journal Article
Language:English
Published: Amsterdam Elsevier B.V 10-05-2002
Elsevier
Subjects:
Aromatization
Beta zeolite
Bifunctional catalysts
Catalysis
Catalytic reactions
Chemistry
Exact sciences and technology
General and physical chemistry
Platinum
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Beta zeolite
Bifunctional catalysts
Aromatization
Platinum
Hydrocarbon
Catalyst selectivity
Acidic site
Cesium
Transition metal
Catalytic reforming
Zeolite
Experimental study
Heptane
Supported catalyst
Molecular sieve
Heterogeneous catalysis
Aluminium Oxides
Alkane
Catalyst activity
Modified material
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Summary:Catalytic behavior of platinum catalysts supported on Cs beta zeolite/γ-alumina, for n-heptane reforming reactions, was studied. Cs concentration in the beta zeolite varied from 0 to 0.84 wt.%, in order to neutralize Brönsted acid sites. Increase in Cs content leads to decrease cracking products, but without increase in the toluene selectivity. In the same study Cs beta zeolite catalysts were compared with pure γ-alumina supported platinum catalyst, showing high toluene selectivity. Selectivity towards isomerization products is favored with catalysts containing Cs beta zeolite, suggesting a bifunctional behavior of such catalyst in spite of Cs content.
ISSN:0926-860X
1873-3875
DOI:10.1016/S0926-860X(02)00073-X