LrgpV1, PascalFrancis, Curation, bibRecord, 000A37

Gas-phase hydrodeoxygenation of guaiacol over iron-based catalysts. Effect of gases composition, iron load and supports (silica and activated carbon)

Identifieur interne : 000A37 ( PascalFrancis/Curation ); précédent : 000A36; suivant : 000A38

Gas-phase hydrodeoxygenation of guaiacol over iron-based catalysts. Effect of gases composition, iron load and supports (silica and activated carbon)

Auteurs : R. Olcese [France] ; M. M. Bettahar [France] ; B. Malaman [France] ; J. Ghanbaja [France] ; L. Tibavizco [France] ; D. Petitjean [France] ; A. Dufour [France]

Source :

Applied catalysis. B, Environmental [ 0926-3373 ] ; 2013.

RBID : Pascal:13-0120195

Descripteurs français

Pascal (Inist)
- Phase gazeuse, Guaiacol, Fer, Catalyseur, Gaz, Composition, Silice, Charbon actif, Lignine, Catalyse hétérogène, Protection environnement, Catalyseur sur support, SiO2.
Wicri :
- topic : Fer, Gaz.

English descriptors

KwdEn :
- Activated carbon, Catalyst, Composition, Environmental protection, Gas phase, Gases, Guaiacol, Heterogeneous catalysis, Iron, Lignin, Silica, Supported catalyst.

Abstract

Fe/Si0₂ is shown to be a selective catalyst for guaiacol hydrodeoxygenation (HDO). Guaiacol is used as a model compound to study the conversion of lignin pyrolysis vapours into aromatics (benzene, phenols). The effect of each individual gas present in a pyrolysis gas (H₂, CO, CO₂, H₂O, CH₄) on the selectivity of a 10wt% Fe/SiO₂ catalyst is studied (673 K, atmospheric pressure, 50 mol% H₂, 1/WHSV = 0.6 g_cat h/g_gua). The speciation of the iron phase (metallic (α-Fe), carbide (Fe₅C₂), oxide (Fe₃O₄), and super-paramagnetic) in spent catalysts is revealed by XRD and Mössbauer spectroscopy as a function of gases composition. At least 3 types of carbonaceous deposit were evidenced by TPO analysis. TEM observations showed that iron particles size is not markedly affected by the reaction and that carbon deposit mainly occurs in the vicinity of iron particles. When all the gases except methane (Guaiacol + H₂ + CO + CO₂ + H₂0) are simultaneously in the feed stream, the conditions are still sufficiently reducing to maintain the activity of the catalyst (66% of benzene and toluene carbon yield, 7.5 g_cat h/g_gua). The effects of support (silica or activated carbon-AC) and iron loading (5, 10, 15 wt% Fe/Si0₂) were also studied. 10wt% Fe/AC has a higher selectivity in phenol and cresols production than Fe/SiO₂. Active sites and reaction mechanisms are discussed.

A01	`01`	`1`		`@0 0926-3373`
A03		`1`		`@0 Appl. catal., B Environ.`
A05				`@2 129`
A08	`01`	`1`	`ENG`	`@1 Gas-phase hydrodeoxygenation of guaiacol over iron-based catalysts. Effect of gases composition, iron load and supports (silica and activated carbon)`
A11	`01`	`1`		`@1 OLCESE (R.)`
A11	`02`	`1`		`@1 BETTAHAR (M. M.)`
A11	`03`	`1`		`@1 MALAMAN (B.)`
A11	`04`	`1`		`@1 GHANBAJA (J.)`
A11	`05`	`1`		`@1 TIBAVIZCO (L.)`
A11	`06`	`1`		`@1 PETITJEAN (D.)`
A11	`07`	`1`		`@1 DUFOUR (A.)`
A14	`01`			`@1 LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville @2 Nancy @3 FRA @Z 1 aut. @Z 5 aut. @Z 6 aut. @Z 7 aut.`
A14	`02`			`@1 SRSMC, CNRS, Université de Lorraine, Faculté des Sciences, Bvd. des Aiguillettes @2 54506 Vandoeuvre-les-Nancy @3 FRA @Z 2 aut.`
A14	`03`			`@1 IJL, CNRS, Université de Lorraine, Faculté des Sciences, Bv. Des Aiguillettes @2 Vandoeuvre-les-Nancy @3 FRA @Z 3 aut. @Z 4 aut.`
A20				`@1 528-538`
A21				`@1 2013`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 18840B @5 354000506373060580`
A44				`@0 0000 @1 © 2013 INIST-CNRS. All rights reserved.`
A45				`@0 50 ref.`
A47	`01`	`1`		`@0 13-0120195`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Applied catalysis. B, Environmental`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 Fe/Si0₂ is shown to be a selective catalyst for guaiacol hydrodeoxygenation (HDO). Guaiacol is used as a model compound to study the conversion of lignin pyrolysis vapours into aromatics (benzene, phenols). The effect of each individual gas present in a pyrolysis gas (H₂, CO, CO₂, H₂O, CH₄) on the selectivity of a 10wt% Fe/SiO₂ catalyst is studied (673 K, atmospheric pressure, 50 mol% H₂, 1/WHSV = 0.6 g_cat h/g_gua). The speciation of the iron phase (metallic (α-Fe), carbide (Fe₅C₂), oxide (Fe₃O₄), and super-paramagnetic) in spent catalysts is revealed by XRD and Mössbauer spectroscopy as a function of gases composition. At least 3 types of carbonaceous deposit were evidenced by TPO analysis. TEM observations showed that iron particles size is not markedly affected by the reaction and that carbon deposit mainly occurs in the vicinity of iron particles. When all the gases except methane (Guaiacol + H₂ + CO + CO₂ + H₂0) are simultaneously in the feed stream, the conditions are still sufficiently reducing to maintain the activity of the catalyst (66% of benzene and toluene carbon yield, 7.5 g_cat h/g_gua). The effects of support (silica or activated carbon-AC) and iron loading (5, 10, 15 wt% Fe/Si0₂) were also studied. 10wt% Fe/AC has a higher selectivity in phenol and cresols production than Fe/SiO₂. Active sites and reaction mechanisms are discussed.
C02	`01`	`X`		`@0 001C01A03`
C02	`02`	`X`		`@0 001C01I06`
C03	`01`	`X`	`FRE`	`@0 Phase gazeuse @5 01`
C03	`01`	`X`	`ENG`	`@0 Gas phase @5 01`
C03	`01`	`X`	`SPA`	`@0 Fase gaseosa @5 01`
C03	`02`	`X`	`FRE`	`@0 Guaiacol @2 NK @2 FR @5 02`
C03	`02`	`X`	`ENG`	`@0 Guaiacol @2 NK @2 FR @5 02`
C03	`02`	`X`	`SPA`	`@0 Guaiacol @2 NK @2 FR @5 02`
C03	`03`	`X`	`FRE`	`@0 Fer @2 NC @5 03`
C03	`03`	`X`	`ENG`	`@0 Iron @2 NC @5 03`
C03	`03`	`X`	`SPA`	`@0 Hierro @2 NC @5 03`
C03	`04`	`X`	`FRE`	`@0 Catalyseur @5 04`
C03	`04`	`X`	`ENG`	`@0 Catalyst @5 04`
C03	`04`	`X`	`SPA`	`@0 Catalizador @5 04`
C03	`05`	`X`	`FRE`	`@0 Gaz @5 05`
C03	`05`	`X`	`ENG`	`@0 Gases @5 05`
C03	`05`	`X`	`SPA`	`@0 Gas @5 05`
C03	`06`	`X`	`FRE`	`@0 Composition @5 06`
C03	`06`	`X`	`ENG`	`@0 Composition @5 06`
C03	`06`	`X`	`SPA`	`@0 Composicion @5 06`
C03	`07`	`X`	`FRE`	`@0 Silice @2 NK @2 FX @5 08`
C03	`07`	`X`	`ENG`	`@0 Silica @2 NK @2 FX @5 08`
C03	`07`	`X`	`SPA`	`@0 Sílice @2 NK @2 FX @5 08`
C03	`08`	`X`	`FRE`	`@0 Charbon actif @5 09`
C03	`08`	`X`	`ENG`	`@0 Activated carbon @5 09`
C03	`08`	`X`	`SPA`	`@0 Carbón activado @5 09`
C03	`09`	`X`	`FRE`	`@0 Lignine @5 10`
C03	`09`	`X`	`ENG`	`@0 Lignin @5 10`
C03	`09`	`X`	`SPA`	`@0 Lignina @5 10`
C03	`10`	`X`	`FRE`	`@0 Catalyse hétérogène @5 11`
C03	`10`	`X`	`ENG`	`@0 Heterogeneous catalysis @5 11`
C03	`10`	`X`	`SPA`	`@0 Catálisis heterogénea @5 11`
C03	`11`	`X`	`FRE`	`@0 Protection environnement @5 12`
C03	`11`	`X`	`ENG`	`@0 Environmental protection @5 12`
C03	`11`	`X`	`SPA`	`@0 Protección medio ambiente @5 12`
C03	`12`	`X`	`FRE`	`@0 Catalyseur sur support @5 15`
C03	`12`	`X`	`ENG`	`@0 Supported catalyst @5 15`
C03	`12`	`X`	`SPA`	`@0 Catalizador sobre soporte @5 15`
C03	`13`	`X`	`FRE`	`@0 SiO2 @4 INC @5 32`
C07	`01`	`X`	`FRE`	`@0 Métal transition @2 NC @5 13`
C07	`01`	`X`	`ENG`	`@0 Transition metal @2 NC @5 13`
C07	`01`	`X`	`SPA`	`@0 Metal transición @2 NC @5 13`
C07	`02`	`X`	`FRE`	`@0 Composé binaire @5 14`
C07	`02`	`X`	`ENG`	`@0 Binary compound @5 14`
C07	`02`	`X`	`SPA`	`@0 Compuesto binario @5 14`
N21				`@1 098`

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

to stream PascalFrancis, to step Corpus: Pour aller vers cette notice dans l'étape Curation :000072

Links to Exploration step

Pascal:13-0120195

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Gas-phase hydrodeoxygenation of guaiacol over iron-based catalysts. Effect of gases composition, iron load and supports (silica and activated carbon)</title>
<author><name sortKey="Olcese, R" sort="Olcese, R" uniqKey="Olcese R" first="R." last="Olcese">R. Olcese</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville</s1>
<s2>Nancy</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Bettahar, M M" sort="Bettahar, M M" uniqKey="Bettahar M" first="M. M." last="Bettahar">M. M. Bettahar</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>SRSMC, CNRS, Université de Lorraine, Faculté des Sciences, Bvd. des Aiguillettes</s1>
<s2>54506 Vandoeuvre-les-Nancy</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Malaman, B" sort="Malaman, B" uniqKey="Malaman B" first="B." last="Malaman">B. Malaman</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>IJL, CNRS, Université de Lorraine, Faculté des Sciences, Bv. Des Aiguillettes</s1>
<s2>Vandoeuvre-les-Nancy</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Ghanbaja, J" sort="Ghanbaja, J" uniqKey="Ghanbaja J" first="J." last="Ghanbaja">J. Ghanbaja</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>IJL, CNRS, Université de Lorraine, Faculté des Sciences, Bv. Des Aiguillettes</s1>
<s2>Vandoeuvre-les-Nancy</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Tibavizco, L" sort="Tibavizco, L" uniqKey="Tibavizco L" first="L." last="Tibavizco">L. Tibavizco</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville</s1>
<s2>Nancy</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Petitjean, D" sort="Petitjean, D" uniqKey="Petitjean D" first="D." last="Petitjean">D. Petitjean</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville</s1>
<s2>Nancy</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Dufour, A" sort="Dufour, A" uniqKey="Dufour A" first="A." last="Dufour">A. Dufour</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville</s1>
<s2>Nancy</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">INIST</idno>
<idno type="inist">13-0120195</idno>
<date when="2013">2013</date>
<idno type="stanalyst">PASCAL 13-0120195 INIST</idno>
<idno type="RBID">Pascal:13-0120195</idno>
<idno type="wicri:Area/PascalFrancis/Corpus">000072</idno>
<idno type="wicri:Area/PascalFrancis/Curation">000A37</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Gas-phase hydrodeoxygenation of guaiacol over iron-based catalysts. Effect of gases composition, iron load and supports (silica and activated carbon)</title>
<author><name sortKey="Olcese, R" sort="Olcese, R" uniqKey="Olcese R" first="R." last="Olcese">R. Olcese</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville</s1>
<s2>Nancy</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Bettahar, M M" sort="Bettahar, M M" uniqKey="Bettahar M" first="M. M." last="Bettahar">M. M. Bettahar</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>SRSMC, CNRS, Université de Lorraine, Faculté des Sciences, Bvd. des Aiguillettes</s1>
<s2>54506 Vandoeuvre-les-Nancy</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Malaman, B" sort="Malaman, B" uniqKey="Malaman B" first="B." last="Malaman">B. Malaman</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>IJL, CNRS, Université de Lorraine, Faculté des Sciences, Bv. Des Aiguillettes</s1>
<s2>Vandoeuvre-les-Nancy</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Ghanbaja, J" sort="Ghanbaja, J" uniqKey="Ghanbaja J" first="J." last="Ghanbaja">J. Ghanbaja</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>IJL, CNRS, Université de Lorraine, Faculté des Sciences, Bv. Des Aiguillettes</s1>
<s2>Vandoeuvre-les-Nancy</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Tibavizco, L" sort="Tibavizco, L" uniqKey="Tibavizco L" first="L." last="Tibavizco">L. Tibavizco</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville</s1>
<s2>Nancy</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Petitjean, D" sort="Petitjean, D" uniqKey="Petitjean D" first="D." last="Petitjean">D. Petitjean</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville</s1>
<s2>Nancy</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
<author><name sortKey="Dufour, A" sort="Dufour, A" uniqKey="Dufour A" first="A." last="Dufour">A. Dufour</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville</s1>
<s2>Nancy</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>France</country>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Applied catalysis. B, Environmental</title>
<title level="j" type="abbreviated">Appl. catal., B  Environ.</title>
<idno type="ISSN">0926-3373</idno>
<imprint><date when="2013">2013</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Applied catalysis. B, Environmental</title>
<title level="j" type="abbreviated">Appl. catal., B  Environ.</title>
<idno type="ISSN">0926-3373</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Activated carbon</term>
<term>Catalyst</term>
<term>Composition</term>
<term>Environmental protection</term>
<term>Gas phase</term>
<term>Gases</term>
<term>Guaiacol</term>
<term>Heterogeneous catalysis</term>
<term>Iron</term>
<term>Lignin</term>
<term>Silica</term>
<term>Supported catalyst</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Phase gazeuse</term>
<term>Guaiacol</term>
<term>Fer</term>
<term>Catalyseur</term>
<term>Gaz</term>
<term>Composition</term>
<term>Silice</term>
<term>Charbon actif</term>
<term>Lignine</term>
<term>Catalyse hétérogène</term>
<term>Protection environnement</term>
<term>Catalyseur sur support</term>
<term>SiO2</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Fer</term>
<term>Gaz</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Fe/Si0<sub>2</sub>
 is shown to be a selective catalyst for guaiacol hydrodeoxygenation (HDO). Guaiacol is used as a model compound to study the conversion of lignin pyrolysis vapours into aromatics (benzene, phenols). The effect of each individual gas present in a pyrolysis gas (H<sub>2</sub>
, CO, CO<sub>2</sub>
, H<sub>2</sub>
O, CH<sub>4</sub>
) on the selectivity of a 10wt% Fe/SiO<sub>2</sub>
 catalyst is studied (673 K, atmospheric pressure, 50 mol% H<sub>2</sub>
, 1/WHSV = 0.6 g<sub>cat</sub>
 h/g<sub>gua</sub>
). The speciation of the iron phase (metallic (α-Fe), carbide (Fe<sub>5</sub>
C<sub>2</sub>
), oxide (Fe<sub>3</sub>
O<sub>4</sub>
), and super-paramagnetic) in spent catalysts is revealed by XRD and Mössbauer spectroscopy as a function of gases composition. At least 3 types of carbonaceous deposit were evidenced by TPO analysis. TEM observations showed that iron particles size is not markedly affected by the reaction and that carbon deposit mainly occurs in the vicinity of iron particles. When all the gases except methane (Guaiacol + H<sub>2</sub>
 + CO + CO<sub>2</sub>
 + H<sub>2</sub>
0) are simultaneously in the feed stream, the conditions are still sufficiently reducing to maintain the activity of the catalyst (66% of benzene and toluene carbon yield, 7.5 g<sub>cat</sub>
 h/g<sub>gua</sub>
). The effects of support (silica or activated carbon-AC) and iron loading (5, 10, 15 wt% Fe/Si0<sub>2</sub>
) were also studied. 10wt% Fe/AC has a higher selectivity in phenol and cresols production than Fe/SiO<sub>2</sub>
. Active sites and reaction mechanisms are discussed.</div>
</front>
</TEI>
<inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0926-3373</s0>
</fA01>
<fA03 i2="1"><s0>Appl. catal., B  Environ.</s0>
</fA03>
<fA05><s2>129</s2>
</fA05>
<fA08 i1="01" i2="1" l="ENG"><s1>Gas-phase hydrodeoxygenation of guaiacol over iron-based catalysts. Effect of gases composition, iron load and supports (silica and activated carbon)</s1>
</fA08>
<fA11 i1="01" i2="1"><s1>OLCESE (R.)</s1>
</fA11>
<fA11 i1="02" i2="1"><s1>BETTAHAR (M. M.)</s1>
</fA11>
<fA11 i1="03" i2="1"><s1>MALAMAN (B.)</s1>
</fA11>
<fA11 i1="04" i2="1"><s1>GHANBAJA (J.)</s1>
</fA11>
<fA11 i1="05" i2="1"><s1>TIBAVIZCO (L.)</s1>
</fA11>
<fA11 i1="06" i2="1"><s1>PETITJEAN (D.)</s1>
</fA11>
<fA11 i1="07" i2="1"><s1>DUFOUR (A.)</s1>
</fA11>
<fA14 i1="01"><s1>LRGP, CNRS, Université de Lorraine, ENSIC, 1, Rue Grandville</s1>
<s2>Nancy</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>SRSMC, CNRS, Université de Lorraine, Faculté des Sciences, Bvd. des Aiguillettes</s1>
<s2>54506 Vandoeuvre-les-Nancy</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>IJL, CNRS, Université de Lorraine, Faculté des Sciences, Bv. Des Aiguillettes</s1>
<s2>Vandoeuvre-les-Nancy</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</fA14>
<fA20><s1>528-538</s1>
</fA20>
<fA21><s1>2013</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>18840B</s2>
<s5>354000506373060580</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2013 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45><s0>50 ref.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>13-0120195</s0>
</fA47>
<fA60><s1>P</s1>
</fA60>
<fA61><s0>A</s0>
</fA61>
<fA64 i1="01" i2="1"><s0>Applied catalysis. B, Environmental</s0>
</fA64>
<fA66 i1="01"><s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Fe/Si0<sub>2</sub>
 is shown to be a selective catalyst for guaiacol hydrodeoxygenation (HDO). Guaiacol is used as a model compound to study the conversion of lignin pyrolysis vapours into aromatics (benzene, phenols). The effect of each individual gas present in a pyrolysis gas (H<sub>2</sub>
, CO, CO<sub>2</sub>
, H<sub>2</sub>
O, CH<sub>4</sub>
) on the selectivity of a 10wt% Fe/SiO<sub>2</sub>
 catalyst is studied (673 K, atmospheric pressure, 50 mol% H<sub>2</sub>
, 1/WHSV = 0.6 g<sub>cat</sub>
 h/g<sub>gua</sub>
). The speciation of the iron phase (metallic (α-Fe), carbide (Fe<sub>5</sub>
C<sub>2</sub>
), oxide (Fe<sub>3</sub>
O<sub>4</sub>
), and super-paramagnetic) in spent catalysts is revealed by XRD and Mössbauer spectroscopy as a function of gases composition. At least 3 types of carbonaceous deposit were evidenced by TPO analysis. TEM observations showed that iron particles size is not markedly affected by the reaction and that carbon deposit mainly occurs in the vicinity of iron particles. When all the gases except methane (Guaiacol + H<sub>2</sub>
 + CO + CO<sub>2</sub>
 + H<sub>2</sub>
0) are simultaneously in the feed stream, the conditions are still sufficiently reducing to maintain the activity of the catalyst (66% of benzene and toluene carbon yield, 7.5 g<sub>cat</sub>
 h/g<sub>gua</sub>
). The effects of support (silica or activated carbon-AC) and iron loading (5, 10, 15 wt% Fe/Si0<sub>2</sub>
) were also studied. 10wt% Fe/AC has a higher selectivity in phenol and cresols production than Fe/SiO<sub>2</sub>
. Active sites and reaction mechanisms are discussed.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>001C01A03</s0>
</fC02>
<fC02 i1="02" i2="X"><s0>001C01I06</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Phase gazeuse</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Gas phase</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Fase gaseosa</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Guaiacol</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Guaiacol</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Guaiacol</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Fer</s0>
<s2>NC</s2>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Iron</s0>
<s2>NC</s2>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Hierro</s0>
<s2>NC</s2>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Catalyseur</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Catalyst</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Catalizador</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Gaz</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Gases</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Gas</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Composition</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Composition</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Composicion</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Silice</s0>
<s2>NK</s2>
<s2>FX</s2>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Silica</s0>
<s2>NK</s2>
<s2>FX</s2>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Sílice</s0>
<s2>NK</s2>
<s2>FX</s2>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Charbon actif</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Activated carbon</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Carbón activado</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Lignine</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Lignin</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Lignina</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Catalyse hétérogène</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Heterogeneous catalysis</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Catálisis heterogénea</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Protection environnement</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Environmental protection</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Protección medio ambiente</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Catalyseur sur support</s0>
<s5>15</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Supported catalyst</s0>
<s5>15</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Catalizador sobre soporte</s0>
<s5>15</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>SiO2</s0>
<s4>INC</s4>
<s5>32</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Métal transition</s0>
<s2>NC</s2>
<s5>13</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Transition metal</s0>
<s2>NC</s2>
<s5>13</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Metal transición</s0>
<s2>NC</s2>
<s5>13</s5>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Composé binaire</s0>
<s5>14</s5>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>Binary compound</s0>
<s5>14</s5>
</fC07>
<fC07 i1="02" i2="X" l="SPA"><s0>Compuesto binario</s0>
<s5>14</s5>
</fC07>
<fN21><s1>098</s1>
</fN21>
</pA>
</standard>
</inist>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Lorraine/explor/LrgpV1/Data/PascalFrancis/Curation

HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000A37 | SxmlIndent | more

HfdSelect -h $EXPLOR_AREA/Data/PascalFrancis/Curation/biblio.hfd -nk 000A37 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Lorraine
   |area=    LrgpV1
   |flux=    PascalFrancis
   |étape=   Curation
   |type=    RBID
   |clé=     Pascal:13-0120195
   |texte=   Gas-phase hydrodeoxygenation of guaiacol over iron-based catalysts. Effect of gases composition, iron load and supports (silica and activated carbon)
}}

This area was generated with Dilib version V0.6.32.
Data generation: Sat Nov 11 15:47:48 2017. Site generation: Wed Mar 6 23:31:34 2024

	Serveur d'exploration sur le LRGP
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.

Serveur d'exploration sur le LRGP

Gas-phase hydrodeoxygenation of guaiacol over iron-based catalysts. Effect of gases composition, iron load and supports (silica and activated carbon)

Gas-phase hydrodeoxygenation of guaiacol over iron-based catalysts. Effect of gases composition, iron load and supports (silica and activated carbon)

Source :

Descripteurs français

English descriptors

Abstract

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

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri