Deactivation of Zeolite Catalysts in the Prins Reaction between Propene and Formaldehyde in the Liquid Phase

被引:4
作者
Bedenko, Stanislav P. [1 ]
Dement'ev, Konstantin, I [1 ]
Tret'yakov, Valentin F. [1 ]
机构
[1] Russian Acad Sci TIPS RAS, AV Topchiev Inst Petrochem Synth, Leninsky Prospect 29, Moscow 119991, Russia
关键词
zeolite catalysts; Prins reaction; propene; formaldehyde; 3-buten-1-ol; catalyst deactivation; buta-1,3-diene; CARBONYL-ENE REACTION; ENCAPSULATED FORMALDEHYDE; CONDENSATION; MECHANISM; ISOPRENE; METHANOL;
D O I
10.3390/catal11101181
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The Prins reaction between propene and formaldehyde was studied over H-BEA, H-FAU, H-MFI and H-MOR zeolites at 150 degrees C in liquid phase. It was found that the H-BEA sample is the most active and selective toward buta-1,3-diene; the H-MFI is a potential catalyst for 3-buten-1-ol synthesis, while H-FAU can be used for 4-methyl-1,3-dioxane production. It had been confirmed that zeolite textural and acidic properties influence catalyst behaviour: the acidic properties influence sample activity, while product distribution is controlled by pore volume and effective pore diameter. The sample's deactivation process had been studied and the kinetic model of deactivation was proposed. It was shown that the deactivation rate for the H-MFI catalyst is four times greater than for the H-BEA catalyst, probably because its strong/weak acid sites ratio is much more high than for the H-BEA.
引用
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页数:10
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