Al‐doped SBA‐15 Catalysts for Low‐temperature Dehydration of 1,3‐Butanediol into Butadiene
SBA‐15 catalysts doped with variable aluminum amounts were prepared through a facile evaporation‐induced self‐assembly process. The textural properties and acidity of the catalysts could be tuned simply by varying the aluminum content. The genesis of acid sites with weak and medium strength during r...
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Veröffentlicht in: | ChemCatChem 2017-01, Vol.9 (2), p.258-262 |
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Sprache: | eng |
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Zusammenfassung: | SBA‐15 catalysts doped with variable aluminum amounts were prepared through a facile evaporation‐induced self‐assembly process. The textural properties and acidity of the catalysts could be tuned simply by varying the aluminum content. The genesis of acid sites with weak and medium strength during reaction was directly correlated to the catalytic activity for the dehydration of 1,3‐butanediol into butadiene (BD). The best performance was achieved over an Al‐SBA‐15 sample with a silica/alumina ratio of 76, exhibiting a stable BD yield of 59 % at temperatures as low as 200 °C.
Keep it in the Brønsted family: An Al‐SBA‐15 catalyst with a silica/alumina ratio of 76 was very active and selective for the production of butadiene by dehydration of 1,3‐butane‐diol at 200 °C, due to the generation of a family of Brønsted acid sites of weak and medium strength during reaction. |
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ISSN: | 1867-3880 1867-3899 1867-3899 |
DOI: | 10.1002/cctc.201601202 |