Production of isobutylene from acetone over micro–mesoporous catalysts


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详细

The production of isobutylene from acetone over micro–mesoporous catalysts with different mesopore contents, which have been prepared using hydrothermal recrystallization of mordenite (MOR) zeolite modified with cesium acetate by incipient wetness impregnation, has been studied. It has been shown that cesium is inserted into the cation positions during the modification, at the same time the number of Brønsted acid sites in the samples decreased. It has been found that an increase in the content of mesopores in the catalyst leads to an increase in the initial rates of acetone conversion and isobutylene formation as a result of removing diffusion limitations. Brønsted acid sites have been shown to be preferable for the selective production of isobutylene from acetone. Micro–mesoporous materials operate more stably as compared to microporous materials.

作者简介

O. Ponomareva

Faculty of Chemistry; Topchiev Institute of Petrochemical Synthesis

编辑信件的主要联系方式.
Email: oaponomareva@phys.chem.msu.ru
俄罗斯联邦, Moscow; Moscow

A. Mal’tseva

Faculty of Chemistry

Email: oaponomareva@phys.chem.msu.ru
俄罗斯联邦, Moscow

A. Maerle

Faculty of Chemistry

Email: oaponomareva@phys.chem.msu.ru
俄罗斯联邦, Moscow

L. Rodionova

Faculty of Chemistry

Email: oaponomareva@phys.chem.msu.ru
俄罗斯联邦, Moscow

V. Pavlov

Topchiev Institute of Petrochemical Synthesis

Email: oaponomareva@phys.chem.msu.ru
俄罗斯联邦, Moscow

I. Dobryakova

Faculty of Chemistry

Email: oaponomareva@phys.chem.msu.ru
俄罗斯联邦, Moscow

M. Belova

Faculty of Chemistry

Email: oaponomareva@phys.chem.msu.ru
俄罗斯联邦, Moscow

I. Ivanova

Faculty of Chemistry; Topchiev Institute of Petrochemical Synthesis

Email: oaponomareva@phys.chem.msu.ru
俄罗斯联邦, Moscow; Moscow

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