Conversion of dimethyl ether to light olefins on Rh-Mg/HZSM-5: role of Rh as a modifier
- 作者: Batova T.I.1, Obukhova T.K.1, Kolesnichenko N.V.1, Shilina M.I.2
-
隶属关系:
- A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
- M. V. Lomonosov Moscow State University
- 期: 卷 99, 编号 3 (2025)
- 页面: 392–401
- 栏目: ХИМИЧЕСКАЯ КИНЕТИКА И КАТАЛИЗ
- ##submission.dateSubmitted##: 29.05.2025
- ##submission.dateAccepted##: 29.05.2025
- ##submission.datePublished##: 29.05.2025
- URL: https://ogarev-online.ru/0044-4537/article/view/294091
- DOI: https://doi.org/10.31857/S0044453725030035
- EDN: https://elibrary.ru/EBLTLI
- ID: 294091
如何引用文章
详细
The influence of the second modifying metal (Rh) on the acid and catalytic properties of Mg/HZSM-5 in conversion of dimethyl ether to light olefins and the state of active components (Mg, Rh) on the zeolite surface are studied. It is shown that when it is introduced into Mg/HZSM-5, rhodium significantly increases stability of the catalyst operation while maintaining the selectivity for light olefins at the level of 75 wt. %. It is found that various oxocationic or oxide forms of magnesium are formed on the zeolite surface in the monometallic sample of Mg/HZSM-5, and introduction of rhodium contributes to stabilization of magnesium mainly in the form of Mg2+ cations while the strength of Lewis acid properties of magnesium cations decreases, which all together makes catalyst deactivation slow down.
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作者简介
T. Batova
A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: batova.ti@ips.ac.ru
俄罗斯联邦, Moscow
T. Obukhova
A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Email: batova.ti@ips.ac.ru
俄罗斯联邦, Moscow
N. Kolesnichenko
A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences
Email: batova.ti@ips.ac.ru
俄罗斯联邦, Moscow
M. Shilina
M. V. Lomonosov Moscow State University
Email: batova.ti@ips.ac.ru
俄罗斯联邦, Moscow
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