LrgpV1, Main, Exploration, bibRecord, 000297

Reaction mechanism for glycerol dehydration in the gas phase over a solid acid catalyst determined with on-line gas chromatography

Identifieur interne : 000297 ( Main/Exploration ); précédent : 000296; suivant : 000298

Reaction mechanism for glycerol dehydration in the gas phase over a solid acid catalyst determined with on-line gas chromatography

Auteurs : Isabelle Martinuzzi [France] ; Yassine Azizi [France] ; Jean-Francois Devaux ; Serge Tretjak [France] ; Orfan Zahraa [France] ; Jean-Pierre Leclerc [France]

Source :

Chemical Engineering Science [ 0009-2509 ] ; 2014-09.

RBID : Hal:hal-01275126

Abstract

Gas phase glycerol dehydration to form acrolein over a solid acid catalyst was studied to understand the formation of by-products and to establish a detailed reaction mechanism. The experiments were conducted in an isothermal fixed bed reactor operated under various conditions (temperature, space-time velocity, concentration). From a methodological point of view, many secondary products of the reaction were passed separately over the catalyst to understand the different pathways of glycerol dehydration. Our scientific contribution to the analytical method is that all of the products were analyzed simultaneously using a multivalve on-line gas chromatograph equipped with a flame ionization detector and a thermal conductivity detector. Two products were quantified using high performance liquid chromatography, and the unknown products (2-methyl 2-cyclopenten-1-one, 3-methyl 2-cyclopenten-1-one and 2,3-butanedione) were identified by gas chromatography-mass spectrometry. Several new compounds were found. Based on the determined products, a detailed reaction mechanism was proposed.

Url:

https://hal.univ-lorraine.fr/hal-01275126

DOI: 10.1016/j.ces.2014.04.030

Affiliations:

Links toward previous steps (curation, corpus...)

to stream Hal, to step Corpus: 000969
to stream Hal, to step Curation: 000969
to stream Hal, to step Checkpoint: 000277
to stream Main, to step Merge: 000300
to stream Main, to step Curation: 000297

Le document en format XML

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<tutelles><tutelle active="#struct-413289" type="direct"><org type="institution" xml:id="struct-413289" status="VALID"><idno type="IdRef">157040569</idno>
<idno type="IdUnivLorraine">[UL]100--</idno>
<orgName>Université de Lorraine</orgName>
<orgName type="acronym">UL</orgName>
<date type="start">2012-01-01</date>
<desc><address><addrLine>34 cours Léopold - CS 25233 - 54052 Nancy cedex</addrLine>
<country key="FR"></country>
</address>
<ref type="url">http://www.univ-lorraine.fr/</ref>
</desc>
</org>
</tutelle>
<tutelle name="UMR7274" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="ISNI">0000000122597504</idno>
<idno type="IdRef">02636817X</idno>
<orgName>Centre National de la Recherche Scientifique</orgName>
<orgName type="acronym">CNRS</orgName>
<date type="start">1939-10-19</date>
<desc><address><country key="FR"></country>
</address>
<ref type="url">http://www.cnrs.fr/</ref>
</desc>
</org>
</tutelle>
</tutelles>
</hal:affiliation>
<country>France</country>
<placeName><settlement type="city">Nancy</settlement>
<settlement type="city">Metz</settlement>
<region type="region" nuts="2">Grand Est</region>
<region type="old region" nuts="2">Lorraine (région)</region>
</placeName>
<orgName type="university">Université de Lorraine</orgName>
</affiliation>
</author>
</analytic>
<idno type="DOI">10.1016/j.ces.2014.04.030</idno>
<series><title level="j">Chemical Engineering Science</title>
<idno type="ISSN">0009-2509</idno>
<imprint><date type="datePub">2014-09</date>
</imprint>
</series>
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<front><div type="abstract" xml:lang="en">Gas phase glycerol dehydration to form acrolein over a solid acid catalyst was studied to understand the formation of by-products and to establish a detailed reaction mechanism. The experiments were conducted in an isothermal fixed bed reactor operated under various conditions (temperature, space-time velocity, concentration). From a methodological point of view, many secondary products of the reaction were passed separately over the catalyst to understand the different pathways of glycerol dehydration. Our scientific contribution to the analytical method is that all of the products were analyzed simultaneously using a multivalve on-line gas chromatograph equipped with a flame ionization detector and a thermal conductivity detector. Two products were quantified using high performance liquid chromatography, and the unknown products (2-methyl 2-cyclopenten-1-one, 3-methyl 2-cyclopenten-1-one and 2,3-butanedione) were identified by gas chromatography-mass spectrometry. Several new compounds were found. Based on the determined products, a detailed reaction mechanism was proposed.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
</country>
<region><li>Grand Est</li>
<li>Lorraine (région)</li>
</region>
<settlement><li>Metz</li>
<li>Nancy</li>
</settlement>
<orgName><li>Université de Lorraine</li>
</orgName>
</list>
<tree><noCountry><name sortKey="Devaux, Jean Francois" sort="Devaux, Jean Francois" uniqKey="Devaux J" first="Jean-Francois" last="Devaux">Jean-Francois Devaux</name>
</noCountry>
<country name="France"><region name="Grand Est"><name sortKey="Martinuzzi, Isabelle" sort="Martinuzzi, Isabelle" uniqKey="Martinuzzi I" first="Isabelle" last="Martinuzzi">Isabelle Martinuzzi</name>
</region>
<name sortKey="Azizi, Yassine" sort="Azizi, Yassine" uniqKey="Azizi Y" first="Yassine" last="Azizi">Yassine Azizi</name>
<name sortKey="Leclerc, Jean Pierre" sort="Leclerc, Jean Pierre" uniqKey="Leclerc J" first="Jean-Pierre" last="Leclerc">Jean-Pierre Leclerc</name>
<name sortKey="Tretjak, Serge" sort="Tretjak, Serge" uniqKey="Tretjak S" first="Serge" last="Tretjak">Serge Tretjak</name>
<name sortKey="Zahraa, Orfan" sort="Zahraa, Orfan" uniqKey="Zahraa O" first="Orfan" last="Zahraa">Orfan Zahraa</name>
</country>
</tree>
</affiliations>
</record>

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Reaction mechanism for glycerol dehydration in the gas phase over a solid acid catalyst determined with on-line gas chromatography

Reaction mechanism for glycerol dehydration in the gas phase over a solid acid catalyst determined with on-line gas chromatography

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