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Isomerization of 1-butene catalyzed by surfactant-modified, Al2O3-pillared clays

Published online by Cambridge University Press:  01 January 2024

Eduardo González ,
Douglas Rodríguez ,
Lenin Huerta  and
Alexander Moronta
Eduardo González
Affiliation:
Instituto de Superficies y Catálisis, Facultad de Ingeniería, Universidad del Zulia, P.O. Box 15251, Maracaibo 4005, Venezuela
Douglas Rodríguez
Affiliation:
Instituto de Superficies y Catálisis, Facultad de Ingeniería, Universidad del Zulia, P.O. Box 15251, Maracaibo 4005, Venezuela
Lenin Huerta
Affiliation:
Laboratorio de Nuevos Materiales, Facultad Experimental de Ciencias, Universidad del Zulia, Maracaibo 4005, Venezuela
Alexander Moronta*
Affiliation:
Instituto de Superficies y Catálisis, Facultad de Ingeniería, Universidad del Zulia, P.O. Box 15251, Maracaibo 4005, Venezuela
*
* E-mail address of corresponding author: [email protected]
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Abstract

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Recent studies indicate that a template method for creating Al-pillared clays, in which surfactant micelles foster the creation of a homogeneous mesoporous network within the pillar, effectively enhance catalyst performance and adsorbent properties. No studies, however, have described the relative effects of the surfactant concentration and Al content on the textural and acidic properties and on the catalytic activity of the Al-pillared clays. The purpose of the present study was to fill this gap, using the isomerization of 1-butene as the test process for catalytic activity. Modified pillared clays (MPC) were prepared from a synthetic clay, TS-1, using different amounts of a non-ionic surfactant (Igepal CO-720) and a fixed concentration of a solution containing the Al polycation [Al13O4-(OH)24]7+. MPC with a fixed amount of surfactant and different amounts of Al were also prepared. The catalysts were characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), temperature-programmed desorption of ammonia, 27Al magic-angle spinning nuclear magnetic resonance (27Al MAS NMR), and N2 adsorption/desorption isotherms. Isomerization of 1-butene at 250°C was used to test the catalytic activity. Analyses by XRD and XRF showed that the synthesized solids were amorphous and that the amount of pillaring by Al increased with the amount of Al complex used. Interestingly, the surface area and pore volume were directly proportional to the amount of surfactant employed and decreased with increasing amounts of Al pillaring. All solids showed activity for 1-butene isomerization, with a maximum conversion of ∼75%. Only cis- and trans-2-butene were observed. The absence of isobutene suggested that acid sites of moderate strength were formed, in agreement with the results obtained from the desorption of ammonia.

Keywords

Isomerization of 1-buteneMesoporous ClaysModified Pillared Clay (MPC)PILC
Type
Article
Information
Clays and Clay Minerals , Volume 57 , Issue 3 , June 2009 , pp. 383 - 391
Copyright
Copyright © The Clay Minerals Society 2009

References

Benjelloun, M. Cool, P. Linssen, T. and Vansant, E., 2001 Acid porous clays heterostructures: study of their cation exchange capacity Microporous and Mesoporous Materials 49 83–94 10.1016/S1387-1811(01)00405-X.CrossRefGoogle Scholar
Bisio, C. Gatti, G. Boccaleri, E. Marchese, L. Superti, G. Pastore, H. and Thommes, M., 2008 Understanding physico-chemical properties of saponite synthetic clays Microporous and Mesoporous Materials 107 90–101 10.1016/j.micromeso.2007.05.038.CrossRefGoogle Scholar
Bradley, S.M. Kydd, R.A. and Fyfe, C.A., 1992 Characterization of galloaluminate GaO4Al12 polyoxocation by MAS NMR and infrared spectroscopies and powder X-ray diffraction Inorganic Chemistry 31 1181–1185 10.1021/ic00033a012.CrossRefGoogle Scholar
Chmielarz, L. Kustrowski, P. Drozdek, M. Dziembaj, R. Cool, P. and Vansant, E., 2006 Selective catalytic oxidation of ammonia into nitrogen over PCH modified with copper and iron species Catalysis Today 114 319–325 10.1016/j.cattod.2006.01.020.CrossRefGoogle Scholar
Chmielarz, L. Kustrowski, P. Dziembaj, R. Cool, P. and Vansant, E., 2007 Selective catalytic reduction of NO with ammonia over porous clay heterostructures modified with copper and iron species Catalysis Today 119 181–186 10.1016/j.cattod.2006.08.017.CrossRefGoogle Scholar
Corma, A., 1997 From microporous to mesoporous molecular sieve materials and their use in catalysis Chemical Reviews 97 2373–2420 10.1021/cr960406n.CrossRefGoogle ScholarPubMed
Deng, Y. Dixon, J.B. and White, G.N., 2003 Intercalation and surface modification of smectite by two non-ionic surfactants Clays and Clay Minerals 51 150–161 10.1346/CCMN.2003.0510204.CrossRefGoogle Scholar
Gil, A. Gandia, L.M. and Vicente, M.A., 2000 Recent advances in the synthesis and catalytic applications of pillared clays Catalysis Reviews Science and Engineering 42 145–212 10.1081/CR-100100261.CrossRefGoogle Scholar
Hwang, K.S. Zhu, H.Y. and Lu, G.Q., 2001 New nickel catalysts on highly porous alumina intercalated laponite for methane reforming with CO2 Catalysis Today 68 183–190 10.1016/S0920-5861(01)00299-1.CrossRefGoogle Scholar
Lenarda, M. Storaro, L. Talon, A. Moretti, E. and Riello, P., 2007 Solid acid catalysts from clays: Preparation of mesoporous catalysts by chemical activation of metakaolin under acid conditions Journal of Colloid and Interface Science 311 537–543 10.1016/j.jcis.2007.03.015.CrossRefGoogle ScholarPubMed
Meariaudeau, P. and Naccache, C., 1999 Skeletal isomerization of n-butenes catalyzed by medium pore zeolites and aluminophosphates Advances in Catalysis 44 505–543.Google Scholar
Morán, C. González, E. Sánchez, J. Solano, R. Carruyo, G. and Moronta, A., 2007 Dehydrogenation of ethylbenzene to styrene using Pt, Mo and Pt-Mo catalysts supported on clay nanocomposites Journal of Colloid and Interface Science 315 164–169 10.1016/j.jcis.2007.06.027.CrossRefGoogle ScholarPubMed
Moronta, A. Ferrer, V. Quero, J. Arteaga, G. and Choren, E., 2002 Influence of preparation method on the catalytic properties of acid-activated tetramethylammonium-exchanged clays Applied Catalysis 230 127–135 10.1016/S0926-860X(01)01001-8.CrossRefGoogle Scholar
Moronta, A. Iwasa, N. Fujita, S.I. Shimokawabe, M. and Arai, M., 2005 Nickel catalysts supported on MgO/smectite-type nanocomposites for methane reforming Clays and Clay Minerals 53 622–630 10.1346/CCMN.2005.0530608.CrossRefGoogle Scholar
Moronta, A. Luengo, J. Ramírez, Y. Quiñonez, J. González, E. and Sánchez, J., 2005 Isomerization of cis-2-butene and trans-2-butene catalyzed by acid- and ion-exchanged smectite-type clays Applied Clay Science 29 117–123 10.1016/j.clay.2004.12.002.CrossRefGoogle Scholar
Moronta, A. Troconis, M.E. González, E. Morán, C. Sánchez, J. González, A. and Quiñonez, J., 2006 Dehydrogenation of ethylbenzene to styrene catalyzed by Co, Mo and CoMo catalysts supported on natural and aluminum-pillared clays. Effect of the metal reduction Applied Catalysis A 310 199–204 10.1016/j.apcata.2006.06.003.CrossRefGoogle Scholar
Pines, H. and Haag, W., 1960 Alumina: catalyst and support. I. Alumina, its intrinsic acidity and catalytic activity Journal of the American Chemical Society 82 2471–2483 10.1021/ja01495a021.CrossRefGoogle Scholar
Polverejan, M. Pauly, T. and Pinnavaia, T., 2000 Acidic porous clay heterostructures (PCH): intragallery assembly of mesoporous silica in synthetic clays Chemistry of Materials 12 2698–2704 10.1021/cm0002618.CrossRefGoogle Scholar
Polverejan, M. Liu, Y. and Pinnavaia, T., 2002 Aluminated derivative porous clay heterostructures (PCH) assembled from synthetic saponite clay: properties as supermicroporous to small mesoporous acid catalysts Chemistry of Materials 14 2283–2288 10.1021/cm011559g.CrossRefGoogle Scholar
Sanz, J., Bergaya, F. Theng, B.K.G. and Lagaly, G., 2006 Nuclear magnetic resonance spectroscopy Handbook of Clay Science Amsterdam Elsevier 919–938 10.1016/S1572-4352(05)01033-0.CrossRefGoogle Scholar
Topsøe, N.Y. Pedersen, K. and Deruane, E.G., 1981 Infrared and temperature-programmed desorption study of the acid properties of ZSM-5 type zeolites Journal of Catalysis 70 41–52 10.1016/0021-9517(81)90315-8.CrossRefGoogle Scholar
Trombetta, M. Busca, G. Rossini, S. Piccoli, V. Cornaro, U. Guercio, A. Catani, R. and Willey, R., 1998 FT-IR studies on light olefin skeletal isomerization catalysis. III. Surface acidity and activity of amorphous and crystalline catalysts belonging to the SiO2-Al2O3 system Journal of Catalysis 179 581–596 10.1006/jcat.1998.2251.CrossRefGoogle Scholar
Vaccari, A., 1998 Preparation and catalytic properties of cationic and anionic clays Catalysis Today 41 53–71 10.1016/S0920-5861(98)00038-8.CrossRefGoogle Scholar
Vaccari, A., 1999 Clays and catalysis: a promising future Applied Clay Science 14 161–198 10.1016/S0169-1317(98)00058-1.CrossRefGoogle Scholar
Vansant, E. and Cool, P., 2001 Chemical modifications of oxide surfaces Colloids and Surfaces A: Physicochemical and Engineering Aspects 179 145–150 10.1016/S0927-7757(00)00650-6.CrossRefGoogle Scholar
Zhu, H.Y. and Lu, G.Q., 2001 Engineering the structure of nanoporous clays with micelles of alkyl polyether surfactants Langmuir 17 588–594 10.1021/la0006871.CrossRefGoogle Scholar
Zhu, H. Ding, Z. Lu, C. and Lu, G., 2002 Molecular engineering of porous clays using surfactants Applied Clay Science 20 165–175 10.1016/S0169-1317(01)00070-9.CrossRefGoogle Scholar
Zhu, H.Y. Zhao, J.C. Liu, J.W. Yang, X.Z. and Shen, Y.N., 2006 General synthesis of a mesoporous composite of metal oxide and silicate nanoparticles from metal salt and laponite suspension for catalysis Chemistry of Materials 18 3993–4001 10.1021/cm060390+.CrossRefGoogle Scholar