Oxidative dehydrogenation of 1 -butene to butadiene on α-Fe2O3/ZnAl2O4 and ZnFexAl2-xO4 catalysts

J. A. Toledo; M. A. Valenzuela; H. Armendáriz; G. Aguilar-Ríos; B. Zapata; A. Montoya; N. Nava; P. Salas; I. Schifter

doi:10.1007/BF00813694

Oxidative dehydrogenation of 1 -butene to butadiene on α-Fe₂O₃/ZnAl₂O₄ and ZnFe_xAl_2-xO₄ catalysts

J. A. Toledo, M. A. Valenzuela, H. Armendáriz, G. Aguilar-Ríos, B. Zapata, A. Montoya, N. Nava, P. Salas, I. Schifter

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Abstract

The oxidative dehydrogenation of 1-butene to butadiene was studied over a series of catalysts of iron impregnated on ZnAl₂O₄ used as a support and also Fe coprecipitated with zinc and aluminum in order to obtain ZnFe_xAl_2-xO₄ type catalysts. Results were compared with bulk α-Fe₂O₃, ZnAl₂O₄ and ZnFe₂O₄. X-ray diffraction (XRD) and Mössbauer spectroscopy suggest that in the impregnated catalysts, Fe ions are in strong interaction with the support. These samples have higher butadiene selectivity than coprecipitated ZnFe_xAl_2-xO₄ catalysts, in which iron is incorporated into the ZnAl₂O₄ spinel network. Results suggest also that iron content has a greater effect on butadiene selectivity than the zinc aluminate-iron oxide interaction.

Original language	English
Pages (from-to)	279-288
Number of pages	10
Journal	Catalysis Letters
Volume	30
Issue number	1-4
DOIs	https://doi.org/10.1007/BF00813694
State	Published - Mar 1994
Externally published	Yes

Keywords

Mössbauer spectroscopy
XRD
ZnAlO spinel structure
oxidative dehydrogenation
oxide supported catalysts
α-FeO

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title = "Oxidative dehydrogenation of 1 -butene to butadiene on α-Fe2O3/ZnAl2O4 and ZnFexAl2-xO4 catalysts",

abstract = "The oxidative dehydrogenation of 1-butene to butadiene was studied over a series of catalysts of iron impregnated on ZnAl2O4 used as a support and also Fe coprecipitated with zinc and aluminum in order to obtain ZnFexAl2-xO4 type catalysts. Results were compared with bulk α-Fe2O3, ZnAl2O4 and ZnFe2O4. X-ray diffraction (XRD) and M{\"o}ssbauer spectroscopy suggest that in the impregnated catalysts, Fe ions are in strong interaction with the support. These samples have higher butadiene selectivity than coprecipitated ZnFexAl2-xO4 catalysts, in which iron is incorporated into the ZnAl2O4 spinel network. Results suggest also that iron content has a greater effect on butadiene selectivity than the zinc aluminate-iron oxide interaction.",

keywords = "M{\"o}ssbauer spectroscopy, XRD, ZnAlO spinel structure, oxidative dehydrogenation, oxide supported catalysts, α-FeO",

author = "Toledo, {J. A.} and Valenzuela, {M. A.} and H. Armend{\'a}riz and G. Aguilar-R{\'i}os and B. Zapata and A. Montoya and N. Nava and P. Salas and I. Schifter",

year = "1994",

month = mar,

doi = "10.1007/BF00813694",

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

volume = "30",

pages = "279--288",

journal = "Catalysis Letters",

issn = "1011-372X",

number = "1-4",

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TY - JOUR

T1 - Oxidative dehydrogenation of 1 -butene to butadiene on α-Fe2O3/ZnAl2O4 and ZnFexAl2-xO4 catalysts

AU - Toledo, J. A.

AU - Valenzuela, M. A.

AU - Armendáriz, H.

AU - Aguilar-Ríos, G.

AU - Zapata, B.

AU - Montoya, A.

AU - Nava, N.

AU - Salas, P.

AU - Schifter, I.

PY - 1994/3

Y1 - 1994/3

N2 - The oxidative dehydrogenation of 1-butene to butadiene was studied over a series of catalysts of iron impregnated on ZnAl2O4 used as a support and also Fe coprecipitated with zinc and aluminum in order to obtain ZnFexAl2-xO4 type catalysts. Results were compared with bulk α-Fe2O3, ZnAl2O4 and ZnFe2O4. X-ray diffraction (XRD) and Mössbauer spectroscopy suggest that in the impregnated catalysts, Fe ions are in strong interaction with the support. These samples have higher butadiene selectivity than coprecipitated ZnFexAl2-xO4 catalysts, in which iron is incorporated into the ZnAl2O4 spinel network. Results suggest also that iron content has a greater effect on butadiene selectivity than the zinc aluminate-iron oxide interaction.

AB - The oxidative dehydrogenation of 1-butene to butadiene was studied over a series of catalysts of iron impregnated on ZnAl2O4 used as a support and also Fe coprecipitated with zinc and aluminum in order to obtain ZnFexAl2-xO4 type catalysts. Results were compared with bulk α-Fe2O3, ZnAl2O4 and ZnFe2O4. X-ray diffraction (XRD) and Mössbauer spectroscopy suggest that in the impregnated catalysts, Fe ions are in strong interaction with the support. These samples have higher butadiene selectivity than coprecipitated ZnFexAl2-xO4 catalysts, in which iron is incorporated into the ZnAl2O4 spinel network. Results suggest also that iron content has a greater effect on butadiene selectivity than the zinc aluminate-iron oxide interaction.

KW - Mössbauer spectroscopy

KW - XRD

KW - ZnAlO spinel structure

KW - oxidative dehydrogenation

KW - oxide supported catalysts

KW - α-FeO

UR - http://www.scopus.com/inward/record.url?scp=0343882159&partnerID=8YFLogxK

U2 - 10.1007/BF00813694

DO - 10.1007/BF00813694

M3 - Artículo

SN - 1011-372X

VL - 30

SP - 279

EP - 288

JO - Catalysis Letters

JF - Catalysis Letters

IS - 1-4

ER -

Oxidative dehydrogenation of 1 -butene to butadiene on α-Fe₂O₃/ZnAl₂O₄ and ZnFe_xAl_2-xO₄ catalysts

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Keywords

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