Hydroprocessing of dibenzothiophene, 1-methylnaphthalene and quinoline over sulfided NiMo-hydroxyapatite-supported catalysts
Identifieur interne : 000271 ( France/Analysis ); précédent : 000270; suivant : 000272Hydroprocessing of dibenzothiophene, 1-methylnaphthalene and quinoline over sulfided NiMo-hydroxyapatite-supported catalysts
Auteurs : Nadia Elazarifi [Maroc] ; MOHAMED AÏT CHAOUI [Maroc] ; ABDELHAK EL OUASSOULI [Maroc] ; Abdelaziz Ezzamarty [Maroc] ; Arnaud Travert [France] ; Jacques Leglise [France] ; Louis-Charles De Menorval [France] ; Claude Moreau [France]Source :
- Catalysis today [ 0920-5861 ] ; 2004.
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Abstract
Hydroprocessing of dibenzothiophene, 1-methylnaphthalene and quinoline was studied in a batch reactor at 340 °C and 7 MPa H2, over sulfided NiO-MoO3 catalysts supported on calcium-deficient hydroxyapatite materials, enriched or not with Al ions, and aluminium phosphate AlPO4. On those catalysts, reaction schemes for hydrodesulfurization of dibenzothiophene, hydrogenation of 1-methylnaphthalene and hydrodenitrogenation of quinoline were found to be similar to those already reported for sulfided NiMo catalysts supported on γ-alumina. However, the catalytic activity was significantly improved by using calcium-deficient apatites, particularly for the catalyst referred to as NiMo/ACP-1.5 that contains 1.5 wt.% Al ions, although its specific surface area was lower than that of an industrial alumina supported catalyst. This increase in activity would result from the presence of superficial defects oxygen vacancies and HPO42- species, which would ease the dispersion of the NiMo phase. Moreover, the existence of correlations between the reaction rates for hydrodesulfurization of dibenzothiophene, hydrogenation of 1-methylnaphthalene, hydrodenitrogenation of quinoline and reduction of dimethyldisulfide into methanethiol confirm that the nature of the catalytic sites was the same, whatever the chemical reaction concerned, hydrogenation of aromatic rings or hydrogenolysis of C-S, C-N and S-S bonds.
Affiliations:
- France, Maroc
- Basse-Normandie, Languedoc-Roussillon, Occitanie (région administrative), Région Normandie
- Caen, Montpellier
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Pascal:05-0060151Le document en format XML
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BP 5366</s1><s2>Maarif, Casablanca</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Maarif, Casablanca</wicri:noRegion></affiliation></author><author><name sortKey="Mohamed Ait Chaoui" sort="Mohamed Ait Chaoui" uniqKey="Mohamed Ait Chaoui" last="Mohamed Aït Chaoui">MOHAMED AÏT CHAOUI</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Catalyse Hétérogène, Université Hassan II, Faculté des Sciences Aïn Chock. BP 5366</s1><s2>Maarif, Casablanca</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Maarif, Casablanca</wicri:noRegion></affiliation></author><author><name sortKey="Abdelhak El Ouassouli" sort="Abdelhak El Ouassouli" uniqKey="Abdelhak El Ouassouli" last="Abdelhak El Ouassouli">ABDELHAK EL OUASSOULI</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Catalyse Hétérogène, Université Hassan II, Faculté des Sciences Aïn Chock. 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BP 5366</s1><s2>Maarif, Casablanca</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>Maarif, Casablanca</wicri:noRegion></affiliation></author><author><name sortKey="Travert, Arnaud" sort="Travert, Arnaud" uniqKey="Travert A" first="Arnaud" last="Travert">Arnaud Travert</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Catalyse et Spectrochimie, UMR CNRS 6506, ENSICAEN, 6, Bvd du Maréchal Juin</s1><s2>14050 Caen</s2><s3>FRA</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Basse-Normandie</region><settlement type="city">Caen</settlement></placeName></affiliation></author><author><name sortKey="Leglise, Jacques" sort="Leglise, Jacques" uniqKey="Leglise J" first="Jacques" last="Leglise">Jacques Leglise</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Catalyse et Spectrochimie, UMR CNRS 6506, ENSICAEN, 6, Bvd du Maréchal Juin</s1><s2>14050 Caen</s2><s3>FRA</s3><sZ>5 aut.</sZ><sZ>6 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Basse-Normandie</region><settlement type="city">Caen</settlement></placeName></affiliation></author><author><name sortKey="De Menorval, Louis Charles" sort="De Menorval, Louis Charles" uniqKey="De Menorval L" first="Louis-Charles" last="De Menorval">Louis-Charles De Menorval</name><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Laboratoire de Matériaux Catalytiques et Catalyse en Chimie Organique, UMR CNRS 5618, ENSCM. 8, Rue de l'Ecole Normale</s1><s2>34296 Montpellier</s2><s3>FRA</s3><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author><author><name sortKey="Moreau, Claude" sort="Moreau, Claude" uniqKey="Moreau C" first="Claude" last="Moreau">Claude Moreau</name><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>Laboratoire de Matériaux Catalytiques et Catalyse en Chimie Organique, UMR CNRS 5618, ENSCM. 8, Rue de l'Ecole Normale</s1><s2>34296 Montpellier</s2><s3>FRA</s3><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Montpellier</settlement></placeName></affiliation></author></analytic><series><title level="j" type="main">Catalysis today</title><title level="j" type="abbreviated">Catal. today</title><idno type="ISSN">0920-5861</idno><imprint><date when="2004">2004</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Catalysis today</title><title level="j" type="abbreviated">Catal. today</title><idno type="ISSN">0920-5861</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Catalyst support</term><term>Desulfurization</term><term>Heterogeneous catalysis</term><term>Hydrodenitrogenation</term><term>Hydrodesulfurization</term><term>Hydrogenation</term><term>Hydroxyapatite</term><term>Mixed catalyst</term><term>Molybdenum</term><term>Nickel</term><term>Phosphates</term><term>Quinoline</term><term>Supported catalyst</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Quinoléine</term><term>Apatite hydroxylée</term><term>Catalyseur sur support</term><term>Catalyse hétérogène</term><term>Support catalyseur</term><term>Hydrodésulfuration</term><term>Hydrodésazotation</term><term>Hydrogénation</term><term>Phosphate</term><term>Désulfuration</term><term>Nickel</term><term>Molybdène</term><term>Catalyseur mixte</term><term>Dibenzothiophène</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Phosphate</term><term>Nickel</term><term>Molybdène</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Hydroprocessing of dibenzothiophene, 1-methylnaphthalene and quinoline was studied in a batch reactor at 340 °C and 7 MPa H<sub>2</sub>, over sulfided NiO-MoO<sub>3</sub> catalysts supported on calcium-deficient hydroxyapatite materials, enriched or not with Al ions, and aluminium phosphate AlPO<sub>4</sub>. On those catalysts, reaction schemes for hydrodesulfurization of dibenzothiophene, hydrogenation of 1-methylnaphthalene and hydrodenitrogenation of quinoline were found to be similar to those already reported for sulfided NiMo catalysts supported on γ-alumina. However, the catalytic activity was significantly improved by using calcium-deficient apatites, particularly for the catalyst referred to as NiMo/ACP-1.5 that contains 1.5 wt.% Al ions, although its specific surface area was lower than that of an industrial alumina supported catalyst. This increase in activity would result from the presence of superficial defects oxygen vacancies and HPO<sub>4</sub><sup>2-</sup> species, which would ease the dispersion of the NiMo phase. Moreover, the existence of correlations between the reaction rates for hydrodesulfurization of dibenzothiophene, hydrogenation of 1-methylnaphthalene, hydrodenitrogenation of quinoline and reduction of dimethyldisulfide into methanethiol confirm that the nature of the catalytic sites was the same, whatever the chemical reaction concerned, hydrogenation of aromatic rings or hydrogenolysis of C-S, C-N and S-S bonds.</div></front></TEI><affiliations><list><country><li>France</li><li>Maroc</li></country><region><li>Basse-Normandie</li><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li><li>Région Normandie</li></region><settlement><li>Caen</li><li>Montpellier</li></settlement></list><tree><country name="Maroc"><noRegion><name sortKey="Elazarifi, Nadia" sort="Elazarifi, Nadia" uniqKey="Elazarifi N" first="Nadia" last="Elazarifi">Nadia Elazarifi</name></noRegion><name sortKey="Abdelhak El Ouassouli" sort="Abdelhak El Ouassouli" uniqKey="Abdelhak El Ouassouli" last="Abdelhak El Ouassouli">ABDELHAK EL OUASSOULI</name><name sortKey="Ezzamarty, Abdelaziz" sort="Ezzamarty, Abdelaziz" uniqKey="Ezzamarty A" first="Abdelaziz" last="Ezzamarty">Abdelaziz Ezzamarty</name><name sortKey="Mohamed Ait Chaoui" sort="Mohamed Ait Chaoui" uniqKey="Mohamed Ait Chaoui" last="Mohamed Aït Chaoui">MOHAMED AÏT CHAOUI</name></country><country name="France"><region name="Région Normandie"><name sortKey="Travert, Arnaud" sort="Travert, Arnaud" uniqKey="Travert A" first="Arnaud" last="Travert">Arnaud Travert</name></region><name sortKey="De Menorval, Louis Charles" sort="De Menorval, Louis Charles" uniqKey="De Menorval L" first="Louis-Charles" last="De Menorval">Louis-Charles De Menorval</name><name sortKey="Leglise, Jacques" sort="Leglise, Jacques" uniqKey="Leglise J" first="Jacques" last="Leglise">Jacques Leglise</name><name sortKey="Moreau, Claude" sort="Moreau, Claude" uniqKey="Moreau C" first="Claude" last="Moreau">Claude Moreau</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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