Propane dehydrogenation activity of Pt and Pt-Sn catalysts supported on magnesium aluminate: Influence of steam and hydrogen

G. Aguilar-Ríos; P. Salas; M. A. Valenzuela; H. Armendáriz; J. A. Wang; J. Salmones

doi:10.1023/a:1019086419498

Propane dehydrogenation activity of Pt and Pt-Sn catalysts supported on magnesium aluminate: Influence of steam and hydrogen

G. Aguilar-Ríos, P. Salas, M. A. Valenzuela, H. Armendáriz, J. A. Wang, J. Salmones

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

Propane dehydrogenation was carried out in hydrogen and steam as reaction media on Pt/MgAl₂O₄ and Pt-Sn/MgAl₂O₄ catalysts. A wide range of Pt and Pt-Sn concentrations was explored. Monometallic Pt catalysts were completely poisoned by steam. Concerning bimetallic Pt-Sn catalysts, tin played an important role related to the activation of platinum particles when the reaction was carried out in steam. On the other hand, tin inhibited cracking reactions leading to an increase of catalysts stability. Activation energy in hydrogen was the same for monometallic and bimetallic catalysts: 22 kcal/mol; while for the reaction in steam, values ranging from 10 to 15 kcal/mol were obtained.

Original language	English
Pages (from-to)	21-25
Number of pages	5
Journal	Catalysis Letters
Volume	60
Issue number	1-2
DOIs	https://doi.org/10.1023/a:1019086419498
State	Published - 1999
Externally published	Yes

Keywords

Magnesium aluminate spinel
Platinum
Platinum-tin
Propane dehydrogenation activity

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title = "Propane dehydrogenation activity of Pt and Pt-Sn catalysts supported on magnesium aluminate: Influence of steam and hydrogen",

abstract = "Propane dehydrogenation was carried out in hydrogen and steam as reaction media on Pt/MgAl2O4 and Pt-Sn/MgAl2O4 catalysts. A wide range of Pt and Pt-Sn concentrations was explored. Monometallic Pt catalysts were completely poisoned by steam. Concerning bimetallic Pt-Sn catalysts, tin played an important role related to the activation of platinum particles when the reaction was carried out in steam. On the other hand, tin inhibited cracking reactions leading to an increase of catalysts stability. Activation energy in hydrogen was the same for monometallic and bimetallic catalysts: 22 kcal/mol; while for the reaction in steam, values ranging from 10 to 15 kcal/mol were obtained.",

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author = "G. Aguilar-R{\'i}os and P. Salas and Valenzuela, {M. A.} and H. Armend{\'a}riz and Wang, {J. A.} and J. Salmones",

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TY - JOUR

T1 - Propane dehydrogenation activity of Pt and Pt-Sn catalysts supported on magnesium aluminate

T2 - Influence of steam and hydrogen

AU - Aguilar-Ríos, G.

AU - Salas, P.

AU - Valenzuela, M. A.

AU - Armendáriz, H.

AU - Wang, J. A.

AU - Salmones, J.

PY - 1999

Y1 - 1999

N2 - Propane dehydrogenation was carried out in hydrogen and steam as reaction media on Pt/MgAl2O4 and Pt-Sn/MgAl2O4 catalysts. A wide range of Pt and Pt-Sn concentrations was explored. Monometallic Pt catalysts were completely poisoned by steam. Concerning bimetallic Pt-Sn catalysts, tin played an important role related to the activation of platinum particles when the reaction was carried out in steam. On the other hand, tin inhibited cracking reactions leading to an increase of catalysts stability. Activation energy in hydrogen was the same for monometallic and bimetallic catalysts: 22 kcal/mol; while for the reaction in steam, values ranging from 10 to 15 kcal/mol were obtained.

AB - Propane dehydrogenation was carried out in hydrogen and steam as reaction media on Pt/MgAl2O4 and Pt-Sn/MgAl2O4 catalysts. A wide range of Pt and Pt-Sn concentrations was explored. Monometallic Pt catalysts were completely poisoned by steam. Concerning bimetallic Pt-Sn catalysts, tin played an important role related to the activation of platinum particles when the reaction was carried out in steam. On the other hand, tin inhibited cracking reactions leading to an increase of catalysts stability. Activation energy in hydrogen was the same for monometallic and bimetallic catalysts: 22 kcal/mol; while for the reaction in steam, values ranging from 10 to 15 kcal/mol were obtained.

KW - Magnesium aluminate spinel

KW - Platinum

KW - Platinum-tin

KW - Propane dehydrogenation activity

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DO - 10.1023/a:1019086419498

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JO - Catalysis Letters

JF - Catalysis Letters

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ER -

Propane dehydrogenation activity of Pt and Pt-Sn catalysts supported on magnesium aluminate: Influence of steam and hydrogen

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Keywords

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