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

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

42 Citas (Scopus)

Resumen

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.

Idioma original	Inglés
Páginas (desde-hasta)	21-25
Número de páginas	5
Publicación	Catalysis Letters
Volumen	60
N.º	1-2
DOI	https://doi.org/10.1023/a:1019086419498
Estado	Publicada - 1999
Publicado de forma externa	Sí

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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.",

keywords = "Magnesium aluminate spinel, Platinum, Platinum-tin, Propane dehydrogenation activity",

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",

year = "1999",

doi = "10.1023/a:1019086419498",

language = "Ingl{\'e}s",

volume = "60",

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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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U2 - 10.1023/a:1019086419498

DO - 10.1023/a:1019086419498

M3 - Artículo

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VL - 60

SP - 21

EP - 25

JO - Catalysis Letters

JF - Catalysis Letters

IS - 1-2

ER -

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

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