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Alkylation of Benzene with Propylene on Hierarchical MWW Zeolites Prepared by Recrystallization
Petroleum Chemistry ( IF 1.4 ) Pub Date : 2021-08-09 , DOI: 10.1134/s0965544121080132
A. V. Shkuropatov 1 , A. G. Popov 1 , I. I. Ivanova 1, 2
Affiliation  

Abstract

The effect of the base type [NaOH, tetramethylammonium hydroxide, and tetrapropylammonium hydroxide] and concentration (3–12 mmol/g) on the formation of mesopores during recrystallization of MWW zeolites was studied. It was shown that with NaOH, cylindrical mesopores are mainly formed, while with tetraalkylammonium hydroxides, slit-like pores. The effect of recrystallization on the catalytic activity of MWW zeolites in benzene alkylation with propylene was studied. It was shown that slit-like mesopores lead to an increase in activity, while cylindrical mesopores only slightly affect the catalytic properties.



中文翻译:

苯与丙烯在重结晶制备的多级 MWW 沸石上烷基化

摘要

研究了碱类型 [NaOH、四甲基氢氧化铵和四丙基氢氧化铵] 和浓度 (3-12 mmol/g) 对 MWW 沸石重结晶过程中中孔形成的影响。结果表明,NaOH 主要形成圆柱形中孔,而四烷基氢氧化铵则主要形成狭缝状孔。研究了重结晶对MWW沸石对丙烯苯烷基化催化活性的影响。结果表明,狭缝状介孔导致活性增加,而圆柱形介孔仅轻微影响催化性能。

更新日期:2021-08-10
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