Butene oligomerization over mesoporous MTS-type aluminosilicates
| Autor: | Irina I. Ivanova, B. Chiche, F. Di Renzo, F. Fajula, E. Sauvage |
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| Rok vydání: | 1998 |
| Předmět: |
chemistry.chemical_classification
Chemistry Alkene Process Chemistry and Technology Inorganic chemistry Microporous material Heterogeneous catalysis Butene Catalysis chemistry.chemical_compound Mesoporous organosilica Chemical engineering Physical and Theoretical Chemistry Zeolite Mesoporous material |
| Zdroj: | Journal of Molecular Catalysis A: Chemical. 134:145-157 |
| ISSN: | 1381-1169 |
| DOI: | 10.1016/s1381-1169(98)00031-4 |
| Popis: | The oligomerization of butene at 423 K and 1.5–2 MPa has been investigated over a series of zeolite, amorphous silica–alumina (ASA) and ordered mesoporous aluminium-containing micelle templated silica (MTS) catalysts. While olefin oligomerization into strongly adsorbed residue and fast deactivation prevailed on microporous catalysts and ASA, mesoporous aluminosilicates with uniform pore openings near 3 nm in size exhibited high selectivity and good stability with time for the production of branched dimers. The characterization of the surface properties of the solids, the nature of the adsorbed residue on the spent catalysts, and the identification of reaction intermediates by in situ infrared spectroscopy of co-adsorbed acetonitrile and butene, suggest that the unique catalytic behaviour of MTS-type catalysts is related to the moderate strength and the high dispersion of the acid sites in the mesoporous structure. |
| Databáze: | OpenAIRE |
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