Steam reforming of ethanol for hydrogen production over Cu/Co-Mg-Al-based catalysts prepared by hydrotalcite route

Doris Homsi; Jihane Abou Rached; Samer Aouad; Cédric Gennequin; Eliane Dahdah; Jane Estephane; Haingomalala Lucette Tidahy; Antoine Aboukaïs; Edmond Abi-Aad

doi:10.1007/s11356-016-7480-9

Steam reforming of ethanol for hydrogen production over Cu/Co-Mg-Al-based catalysts prepared by hydrotalcite route

Doris Homsi, Jihane Abou Rached, Samer Aouad, Cédric Gennequin, Eliane Dahdah, Jane Estephane, Haingomalala Lucette Tidahy, Antoine Aboukaïs, Edmond Abi-Aad

Chemistry

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

Abstract

The performances of different 5Cu/Co_xMg_6-xAl₂ (x = 0; 2; 4; 6) catalysts prepared by the wet impregnation method were investigated in the ethanol steam-reforming reaction (ESR) at 450 °C during 4 h under a steam/ethanol ratio of 3 (S/E = 3). The best catalyst among the prepared solids was 5Cu/Co₆Al₂ as it showed a complete ethanol conversion and the highest hydrogen and carbon dioxide productivities. However, following 50 h of aging, the catalyst deactivated due to the formation of a high amount of carbonaceous products detected by differential scanning calorimetry/thermogravimetry. On the other hand, the 5Cu/Co₂Mg₄Al₂ catalyst showed a much lower quantity of coke deposition with no deactivation due to the basic character conferred by the magnesium oxide phase.

Original language	English (US)
Pages (from-to)	9907-9913
Number of pages	7
Journal	Environmental Science and Pollution Research
Volume	24
Issue number	11
DOIs	https://doi.org/10.1007/s11356-016-7480-9
State	Published - Apr 1 2017

Keywords

Copper
Ethanol
Hydrogen
Hydrotalcite
Steam reforming

ASJC Scopus subject areas

Environmental Chemistry
Pollution
Health, Toxicology and Mutagenesis

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10.1007/s11356-016-7480-9

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title = "Steam reforming of ethanol for hydrogen production over Cu/Co-Mg-Al-based catalysts prepared by hydrotalcite route",

abstract = "The performances of different 5Cu/CoxMg6-xAl2 (x = 0; 2; 4; 6) catalysts prepared by the wet impregnation method were investigated in the ethanol steam-reforming reaction (ESR) at 450 °C during 4 h under a steam/ethanol ratio of 3 (S/E = 3). The best catalyst among the prepared solids was 5Cu/Co6Al2 as it showed a complete ethanol conversion and the highest hydrogen and carbon dioxide productivities. However, following 50 h of aging, the catalyst deactivated due to the formation of a high amount of carbonaceous products detected by differential scanning calorimetry/thermogravimetry. On the other hand, the 5Cu/Co2Mg4Al2 catalyst showed a much lower quantity of coke deposition with no deactivation due to the basic character conferred by the magnesium oxide phase.",

keywords = "Copper, Ethanol, Hydrogen, Hydrotalcite, Steam reforming",

author = "Doris Homsi and Rached, {Jihane Abou} and Samer Aouad and C{\'e}dric Gennequin and Eliane Dahdah and Jane Estephane and Tidahy, {Haingomalala Lucette} and Antoine Abouka{\"i}s and Edmond Abi-Aad",

note = "Publisher Copyright: {\textcopyright} 2016, Springer-Verlag Berlin Heidelberg.",

year = "2017",

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doi = "10.1007/s11356-016-7480-9",

language = "English (US)",

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T1 - Steam reforming of ethanol for hydrogen production over Cu/Co-Mg-Al-based catalysts prepared by hydrotalcite route

AU - Homsi, Doris

AU - Rached, Jihane Abou

AU - Aouad, Samer

AU - Gennequin, Cédric

AU - Dahdah, Eliane

AU - Estephane, Jane

AU - Tidahy, Haingomalala Lucette

AU - Aboukaïs, Antoine

AU - Abi-Aad, Edmond

PY - 2017/4/1

Y1 - 2017/4/1

N2 - The performances of different 5Cu/CoxMg6-xAl2 (x = 0; 2; 4; 6) catalysts prepared by the wet impregnation method were investigated in the ethanol steam-reforming reaction (ESR) at 450 °C during 4 h under a steam/ethanol ratio of 3 (S/E = 3). The best catalyst among the prepared solids was 5Cu/Co6Al2 as it showed a complete ethanol conversion and the highest hydrogen and carbon dioxide productivities. However, following 50 h of aging, the catalyst deactivated due to the formation of a high amount of carbonaceous products detected by differential scanning calorimetry/thermogravimetry. On the other hand, the 5Cu/Co2Mg4Al2 catalyst showed a much lower quantity of coke deposition with no deactivation due to the basic character conferred by the magnesium oxide phase.

AB - The performances of different 5Cu/CoxMg6-xAl2 (x = 0; 2; 4; 6) catalysts prepared by the wet impregnation method were investigated in the ethanol steam-reforming reaction (ESR) at 450 °C during 4 h under a steam/ethanol ratio of 3 (S/E = 3). The best catalyst among the prepared solids was 5Cu/Co6Al2 as it showed a complete ethanol conversion and the highest hydrogen and carbon dioxide productivities. However, following 50 h of aging, the catalyst deactivated due to the formation of a high amount of carbonaceous products detected by differential scanning calorimetry/thermogravimetry. On the other hand, the 5Cu/Co2Mg4Al2 catalyst showed a much lower quantity of coke deposition with no deactivation due to the basic character conferred by the magnesium oxide phase.

KW - Copper

KW - Ethanol

KW - Hydrogen

KW - Hydrotalcite

KW - Steam reforming

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ER -

Steam reforming of ethanol for hydrogen production over Cu/Co-Mg-Al-based catalysts prepared by hydrotalcite route

Abstract

Keywords

ASJC Scopus subject areas

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