Ultrasound-Assisted Modification of Zeolite Catalyst for Dimethyl Ether Conversion to Olefins with Magnesium Compounds

被引：9

作者：

Kolesnikova, E. E. ^{[1
]}

Obukhova, T. K. ^{[1
]}

Kolesnichenko, N., V ^{[1
]}

Bondarenko, G. N. ^{[1
]}

Arapova, V ^{[1
]}

Khadzhiev, S. N. ^{[1
]}

机构：

[1] Russian Acad Sci, Topchiev Inst Petrochem Synth, Moscow 119991, Russia

来源：

PETROLEUM CHEMISTRY | 2018年 / 58卷 / 10期

关键词：

zeolite catalysts; modification; dimethyl ether; lower olefins; ultrasonic treatment; PROPYLENE PRODUCTION; METHANOL; NANOZEOLITES; HYDROCARBONS; SIZE; SUSPENSIONS; ACIDITY;

D O I：

10.1134/S0965544118100201

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The influence of ultrasonic treatment at various stages of modification of ZSM-5 zeolite with magnesium compounds has been studied to obtain a nanosized zeolite and increase the dispersion of the active element. It has been found that the use of sonication at various stages of magnesium incorporation into the zeolite structure alters the texture and acid properties of the catalyst. Using temperature-programmed ammonia desorption and diffuse reflectance infrared spectroscopy, it has been shown that the sonication leads to an increase in the proportion of Bronsted acid sites of medium strength.

引用

页码：863 / 868

页数：6

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