Metathesis of 1-butene and 2-butene to propene over Re2O7 supported on macro-mesoporous γ-alumina prepared via a dual template method

Journal of Natural Gas Chemistry Pub Date : 2012-03-01 DOI:10.1016/S1003-9953(11)60340-X

Lei Sang, Sheng-Li Chen, Guimei Yuan, Min Zheng, Ju You, Aicheng Chen, Rui Li, Lanjing Chen

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引用次数: 11

Abstract

Macro-mesoporous γ-alumina support (MMA) was prepared by a sol-gel route in aqueous medium using pseudo-boehmite as aluminum source and polystyrene microspheres and Pluronic P123 as hard and soft dual templates, respectively. MMA had a BET specific surface area of about 259 m²·g⁻¹, total pore volume of about 1.61 cm³·g⁻¹, macropore diameter of about 102 nm, and mesopore diameter of about 14 nm. Re₂O₇/MMA and conventional Re₂O₇/Al₂O₃ were prepared by a incipient-wetness impregnation method, and their catalytic performances in the metathesis of 1-butene and 2-butene were tested in a fixed-bed tubular reactor. The result showed that Re₂O₇/MMA possessed higher activity and far longer working life-span than conventional Re₂O₇/Al₂O₃.

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双模板法制备的大介孔γ-氧化铝负载Re2O7上，1-丁烯和2-丁烯合成丙烯

以拟薄水铝石为铝源，聚苯乙烯微球和Pluronic P123分别为硬、软双模板，采用溶胶-凝胶法制备了大介孔γ-氧化铝载体(MMA)。MMA的BET比表面积约为259 m2·g−1，总孔体积约为1.61 cm3·g−1，大孔直径约为102 nm，中孔直径约为14 nm。采用初湿浸渍法制备了Re2O7/MMA和常规Re2O7/Al2O3，并在固定床管式反应器中测试了它们催化1-丁烯和2-丁烯的反应性能。结果表明，与常规Re2O7/Al2O3相比，Re2O7/MMA具有更高的活性和更长的工作寿命。

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来源期刊

Journal of Natural Gas Chemistry 化学-工程：化工

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审稿时长

2 months