Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
The way to enhance SAPO-34 activity and stability in methanol-to-olefin conversion. / Shamanaeva, Irina A.; Yu, Zhichao; Golodnova, Daria A. и др.
в: Journal of Porous Materials, 10.11.2022.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - The way to enhance SAPO-34 activity and stability in methanol-to-olefin conversion
AU - Shamanaeva, Irina A.
AU - Yu, Zhichao
AU - Golodnova, Daria A.
AU - Sladkovskiy, Dmitry A.
AU - Babina, Kseniya A.
AU - Parkhomchuk, Ekaterina V.
N1 - Funding Information: This work was supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis (Project AAAA-A21-121011490008-3). Publisher Copyright: © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2022/11/10
Y1 - 2022/11/10
N2 - 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.
AB - 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.
KW - MTO
KW - SAPO-34
KW - Silicon content
KW - SiO/AlO molar ratio
KW - Ultrasonic pre-treatment
UR - http://www.scopus.com/inward/record.url?scp=85141662206&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/e8f2e45b-1f6f-3e10-9af9-4b97cbd4b0a6/
U2 - 10.1007/s10934-022-01383-2
DO - 10.1007/s10934-022-01383-2
M3 - Article
AN - SCOPUS:85141662206
JO - Journal of Porous Materials
JF - Journal of Porous Materials
SN - 1380-2224
ER -
ID: 39374487