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Adsorption of Olefins on Aluminum- and Aluminum/Tetramethylammonium-Exchanged Bentonites

Published online by Cambridge University Press:  01 January 2024

Alexander Moronta ,
Scott Taylor  and
Christopher Breen
Alexander Moronta*
Affiliation:
Materials Research Institute, Sheffield Hallam University, Sheffield, S1 1WB, UK
Scott Taylor
Affiliation:
Materials Research Institute, Sheffield Hallam University, Sheffield, S1 1WB, UK
Christopher Breen
Affiliation:
Materials Research Institute, Sheffield Hallam University, Sheffield, S1 1WB, UK
*
†Current address: Centro de Superficies y Catálisis, Facultad de Ingeniería, Universidad del Zulia, P.O Box 15251, Maracaibo 4003A, Venezuela
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Abstract

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One montmorillonite, STx-1 (Texas, USA), was activated with different amounts of Al and tetramethylammonium (TMA+) cations to obtain materials with a combined Al3+ and TMA+ content equal to its cation exchange capacity. The adsorption capacity of these samples was studied saturating them with hept-1-ene at room temperature. The samples were heated and the evolved gases analyzed by Fourier transform infrared spectroscopy and gas chromatography-mass spectrometry. Hept-1-ene reacted with the clays via proton transfer and resulted in the formation of a variety of reaction products (>60 hydrocarbons). In general, the presence of TMA+ cations significantly reduced the population of protons to selectively produce isomerization and hydration products.

Keywords

AdsorptionAluminumClaysOlefinsOrganoclays
Type
Research Article
Information
Clays and Clay Minerals , Volume 50 , Issue 2 , April 2002 , pp. 265 - 271
Copyright
Copyright © 2002, The Clay Minerals Society

References

Adams, J.M. Ballantine, J.A. Graham, S.H. Laub, R.J. Purnell, J.H. Reid, P.I. Shaman, W.Y.M. and Thomas, J.M., (1979) Selective chemical conversion using sheet silicate intercalates: low-temperature addition of water to 1-alkenes Journal of Catalysis 58 238–252 10.1016/0021-9517(79)90261-6.CrossRefGoogle Scholar
Adams, J.M. Clapp, T.V. Clement, D.E. and Reid, P.I., (1984) Reactions of alk-1-enes over ion-exchanged montmorillonites Journal of Molecular Catalysis 27 179–194 10.1016/0304-5102(84)85079-8.CrossRefGoogle Scholar
Ballantine, J.A., Davies, M., Purnell, H., Rayanakorn, M. and Thomas, J.M. (1981) Chemical conversions using sheet silicates: novel intermolecular dehydration of alcohols to ether and polymers. Journal of Chemical Society, Chemical Communications, 427–428.CrossRefGoogle Scholar
Barrer, R.M. and Macleod, D.M., (1955) Activation of montmorillonite by ion exchange and sorption complexes of tetra-alkylammonium montmorillonite Transactions of the Faraday Society 51 1290–1300 10.1039/tf9555101290.CrossRefGoogle Scholar
Breen, C. and Last, P.M., (1999) Catalytic transformation of the gases evolved during the thermal decomposition of HDPE using acid-activated and pillared clays Journal of Materials Chemistry 9 813–818 10.1039/a808882i.CrossRefGoogle Scholar
Breen, C. and Moronta, A., (1999) Influence of layer charge on the catalytic activity of mildly acid-activated tetramethylammonium-exchanged bentonites Journal of Physical Chemistry B 103 5675–5680 10.1021/jp9901646.CrossRefGoogle Scholar
Breen, C. and Moronta, A., (2000) Characterization and catalytic activity of aluminum- and aluminum/tetramethylammonium-exchanged bentonites Journal of Physical Chemistry B 104 2702–2708 10.1021/jp992602e.CrossRefGoogle Scholar
Breen, C. Deane, A.T. and Flynn, J.J., (1987) The acidity of trivalent cation-exchanged montmorillonite. Temperature-programmed desorption and infrared studies of pyridine and n-butylamine Clay Minerals 22 169–178 10.1180/claymin.1987.022.2.05.CrossRefGoogle Scholar
Brown, G. Edwards, B. Ormerod, E.C. and Weir, A.H., (1972) A simple diffractometer heating stage Clay Minerals 9 407–414 10.1180/claymin.1972.009.4.05.CrossRefGoogle Scholar
Choren, E. Moronta, A. Varela, G. Arteaga, A. and Sainchez, J., (1997) Condensation of olefins on clays. Gas-solid systems. Part I. Gravimetric Methods Clays and Clay Minerals 45 213–220 10.1346/CCMN.1997.0450209.CrossRefGoogle Scholar
Choren, E. Moronta, A. Arteaga, A. and Sáinchez, J., (1997) Condensation of olefins on clays. Gas-solid systems. Part II. Spectroscopic Methods Clays and Clay Minerals 45 221–225 10.1346/CCMN.1997.0450210.CrossRefGoogle Scholar
Mortland, M.M. and Raman, K.V., (1968) Surface acidity of smectites in relation to hydration, exchangeable cation and structure Clays and Clay Minerals 16 393–398 10.1346/CCMN.1968.0160508.CrossRefGoogle Scholar
Stepanov, A. Luzgin, M.V. Romannikov, V.N. Sidelnikov, V.N. and Paukshtis, E.A., (1998) The nature, structure, and composition of adsorbed hydrocarbon products of ambient temperature oligomerization of ethylene on acid zeolite H-ZSM-5 Journal of Catalysis 178 466–477 10.1006/jcat.1998.2172.CrossRefGoogle Scholar
Thomas, J.M., Whittingham, M.S. and Jacobson, A.J., (1982) Sheet silicate intercalates. New agents for unusual chemical conversions Intercalation Chemistry New York Academic Press 56 99.Google Scholar
Trombetta, M. Busca, G. Rossini, S.A. Piccoli, V. and Cornaro, U., (1997) FTIR studies on light olefin skeletal isomerisation catalysis I. The interaction of C4 olefins and alcohols with pure γ-alumina Journal of Catalysis 168 334–348 10.1006/jcat.1997.1642.CrossRefGoogle Scholar
Vogel, A.P. O’Connor, C.T. and Kojima, M., (1990) Thermogravimetric analysis of the iso-butene oligomerization activity of various forms of synthetic mica-montmorillonite Clay Minerals 25 355–362 10.1180/claymin.1990.025.3.10.CrossRefGoogle Scholar