Porous iron-based catalysts with different promoters (Zr, Ti or Al) have
been tested in oxidative dehydrogenation of ethylbenzene with CO2 for
styrene production. The catalysts were characterized by X-ray
diffraction (XRD), Fe-57-Mossbauer and Raman spectroscopy,
temperature-programmed reduction (TPR) and N-2 adsorption-desorption
measurements, before and after the catalytic evaluation. The reactivity
of iron-based catalysts toward styrene production was dependent on the
structural and textural features of the solid as well as the nature of
the promoter. alpha-Fe2O3 and rutile TiO2 present on FeTi were converted
in situ into FeTiO3, Fe2TiO5 and FeTi2O5, and these phases revealed a
high styrene yield (up to 50%) in the first stage of the reaction, but
lower selectivity than that exhibited by their FeZr and FeAl
counterparts. However, FeTi performed much better in terms of stability
showing no tendency to sintering or phase transformation whereas the
other solids suffered from hard carbon deposition. (C) 2013 Elsevier
Ltd. All rights reserved.
%0 Journal Article
%1 WOS:000317565100086
%A Castro, Antonio J R
%A Soares, Joao M
%A Filho, Josue M
%A Oliveira, Alcineia C
%A Campos, Adriana
%A Milet, Edwin R C
%C THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
%D 2013
%I ELSEVIER SCI LTD
%J FUEL
%K Carbon Characterizations; Dehydrogenation; Ethylbenzene; dioxide} iron oxides; {Porous
%P 740-748
%R 10.1016/j.fuel.2013.02.019
%T Oxidative dehydrogenation of ethylbenzene with CO2 for styrene
production over porous iron-based catalysts
%V 108
%X Porous iron-based catalysts with different promoters (Zr, Ti or Al) have
been tested in oxidative dehydrogenation of ethylbenzene with CO2 for
styrene production. The catalysts were characterized by X-ray
diffraction (XRD), Fe-57-Mossbauer and Raman spectroscopy,
temperature-programmed reduction (TPR) and N-2 adsorption-desorption
measurements, before and after the catalytic evaluation. The reactivity
of iron-based catalysts toward styrene production was dependent on the
structural and textural features of the solid as well as the nature of
the promoter. alpha-Fe2O3 and rutile TiO2 present on FeTi were converted
in situ into FeTiO3, Fe2TiO5 and FeTi2O5, and these phases revealed a
high styrene yield (up to 50%) in the first stage of the reaction, but
lower selectivity than that exhibited by their FeZr and FeAl
counterparts. However, FeTi performed much better in terms of stability
showing no tendency to sintering or phase transformation whereas the
other solids suffered from hard carbon deposition. (C) 2013 Elsevier
Ltd. All rights reserved.
@article{WOS:000317565100086,
abstract = {Porous iron-based catalysts with different promoters (Zr, Ti or Al) have
been tested in oxidative dehydrogenation of ethylbenzene with CO2 for
styrene production. The catalysts were characterized by X-ray
diffraction (XRD), Fe-57-Mossbauer and Raman spectroscopy,
temperature-programmed reduction (TPR) and N-2 adsorption-desorption
measurements, before and after the catalytic evaluation. The reactivity
of iron-based catalysts toward styrene production was dependent on the
structural and textural features of the solid as well as the nature of
the promoter. alpha-Fe2O3 and rutile TiO2 present on FeTi were converted
in situ into FeTiO3, Fe2TiO5 and FeTi2O5, and these phases revealed a
high styrene yield (up to 50%) in the first stage of the reaction, but
lower selectivity than that exhibited by their FeZr and FeAl
counterparts. However, FeTi performed much better in terms of stability
showing no tendency to sintering or phase transformation whereas the
other solids suffered from hard carbon deposition. (C) 2013 Elsevier
Ltd. All rights reserved.},
added-at = {2022-05-23T20:00:14.000+0200},
address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND},
author = {Castro, Antonio J R and Soares, Joao M and Filho, Josue M and Oliveira, Alcineia C and Campos, Adriana and Milet, Edwin R C},
biburl = {https://www.bibsonomy.org/bibtex/24eb727fc6ced8702dbc018dac74406fb/ppgfis_ufc_br},
doi = {10.1016/j.fuel.2013.02.019},
interhash = {36c7890611605ca15e33276a3775feed},
intrahash = {4eb727fc6ced8702dbc018dac74406fb},
issn = {0016-2361},
journal = {FUEL},
keywords = {Carbon Characterizations; Dehydrogenation; Ethylbenzene; dioxide} iron oxides; {Porous},
pages = {740-748},
publisher = {ELSEVIER SCI LTD},
pubstate = {published},
timestamp = {2022-05-23T20:00:14.000+0200},
title = {Oxidative dehydrogenation of ethylbenzene with CO2 for styrene
production over porous iron-based catalysts},
tppubtype = {article},
volume = 108,
year = 2013
}