The Way to Enhance SAPO-34 Activity and Stability in Methanol-to-Olefin Conversion | Sciact - CRIS-system of Boreskov Institute of Catalysis

The Way to Enhance SAPO-34 Activity and Stability in Methanol-to-Olefin Conversion Full article

Journal

Journal of Porous Materials
ISSN: 1380-2224 , E-ISSN: 1573-4854

Output data

Year: 2023, Volume: 30, Pages: 787–796 Pages count : 10 DOI: 10.1007/s10934-022-01383-2

Tags

SAPO-34; MTO; Silicon content; SiO2/Al2O3 molar ratio; Ultrasonic pre-treatment

Authors

Shamanaeva Irina A. ¹ , Yu Zhichao ^2,3 , Golodnova Daria A. ⁴ , Sladkovskiy Dmitry A. ⁴ , Babina Kseniya A. ¹ , Parkhomchuk Ekaterina V. ¹

Affiliations

1	Boreskov Institute of Catalysis, Lavrentiev Ave. 5, Novosibirsk, Russia 630090
2	Heilongjiang University, 150080 Harbin, People’s Republic of China
3	Novosibirsk State University, Novosibirsk, Russia 630090
4	St. Petersburg State Institute of Technology, Saint Petersburg, Russia 190013

Funding (1)

Ministry of Science and Higher Education of the Russian Federation

0239-2021-0004

The study on influence of initial SiO2/Al2O3 ratio and approaches to precursor mixing (conventional mixing with magnetic stirrer and overhead mixing with ultrasonication (US)) on phase, texture and acidity of SAPO-34 and catalytic performance in methanol-to-olefin (MTO) process is presented. Contribution of the amorphous phase in the catalysts were determined using neural network via counting cubic (crystalline) and spherical (amorphous) particles in SEM images. We have found out that ultrasonication pre-treatment improves the crystallinity of SAPO-34 crystals and facilitates silicon incorporation into AlPO framework at higher SiO2/Al2O3 ratio. Acidity of samples synthesized with US pre-treatment is increased comparing with corresponding samples synthesized without US pre-treatment. US-treated catalyst lifetime is also enhanced. As a result, total olefin yield is higher on US-treated catalysts comparing with corresponding SiO2/Al2O3 ratio of non-treated ones.

Shamanaeva I.A. , Yu Z. , Golodnova D.A. , Sladkovskiy D.A. , Babina K.A. , Parkhomchuk E.V.
The Way to Enhance SAPO-34 Activity and Stability in Methanol-to-Olefin Conversion
Journal of Porous Materials. 2023. V.30. P.787–796. DOI: 10.1007/s10934-022-01383-2 WOS Scopus РИНЦ AN OpenAlex

Accepted:	Oct 30, 2022
Published online:	Nov 10, 2022
Published print:	Jun 1, 2023

Web of science:	WOS:000881553800002
Scopus:	2-s2.0-85141662206
Elibrary:	54016216
Chemical Abstracts:	2022:2926034
OpenAlex:	W4308906296

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