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Comparative study of methanol and dimethyl ether conversions to light olefins over a Mg–HZSM-5/Al2O3 catalyst in nitrogen and syngas atmospheres

Konstantin Borisovich Golubev 1
Konstantin Borisovich Golubev
, 
Ekaterina E Kolesnikova 1
Ekaterina E Kolesnikova
, 
Tatiana I Batova 1
Tatiana I Batova
, 
Ekaterina N Khivrich 1
Ekaterina N Khivrich
, 
Olga Vladimirovna Arapova 1
Olga Vladimirovna Arapova
, 
Natalya Vasil'evna Kolesnichenko 1
Natalya Vasil'evna Kolesnichenko
10.71267/mencom.7881
Published 2026-02-03
Communication , Volume 36, Issue 2, 229-231
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Golubev K. B. et al. Comparative study of methanol and dimethyl ether conversions to light olefins over a Mg–HZSM-5/Al2O3 catalyst in nitrogen and syngas atmospheres // Mendeleev Communications. 2026. Vol. 36. No. 2. pp. 229-231.
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Golubev K. B., Kolesnikova E. E., Batova T. I., Khivrich E. N., Arapova O. V., Kolesnichenko N. V. Comparative study of methanol and dimethyl ether conversions to light olefins over a Mg–HZSM-5/Al2O3 catalyst in nitrogen and syngas atmospheres // Mendeleev Communications. 2026. Vol. 36. No. 2. pp. 229-231.
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TY - JOUR
DO - 10.71267/mencom.7881
UR - https://mendcomm.colab.ws/publications/10.71267/mencom.7881
TI - Comparative study of methanol and dimethyl ether conversions to light olefins over a Mg–HZSM-5/Al2O3 catalyst in nitrogen and syngas atmospheres
T2 - Mendeleev Communications
AU - Golubev, Konstantin Borisovich
AU - Kolesnikova, Ekaterina E
AU - Batova, Tatiana I
AU - Khivrich, Ekaterina N
AU - Arapova, Olga Vladimirovna
AU - Kolesnichenko, Natalya Vasil'evna
PY - 2026
DA - 2026/02/03
PB - Mendeleev Communications
SP - 229-231
IS - 2
VL - 36
ER -
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@article{2026_Golubev,
author = {Konstantin Borisovich Golubev and Ekaterina E Kolesnikova and Tatiana I Batova and Ekaterina N Khivrich and Olga Vladimirovna Arapova and Natalya Vasil'evna Kolesnichenko},
title = {Comparative study of methanol and dimethyl ether conversions to light olefins over a Mg–HZSM-5/Al2O3 catalyst in nitrogen and syngas atmospheres},
journal = {Mendeleev Communications},
year = {2026},
volume = {36},
publisher = {Mendeleev Communications},
month = {Feb},
url = {https://mendcomm.colab.ws/publications/10.71267/mencom.7881},
number = {2},
pages = {229--231},
doi = {10.71267/mencom.7881}
}
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Cite this
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Golubev, Konstantin Borisovich, et al. “Comparative study of methanol and dimethyl ether conversions to light olefins over a Mg–HZSM-5/Al2O3 catalyst in nitrogen and syngas atmospheres.” Mendeleev Communications, vol. 36, no. 2, Feb. 2026, pp. 229-231. https://mendcomm.colab.ws/publications/10.71267/mencom.7881.

Keywords

carbonylation inhibition
dimethyl ether
in situ diffuse reflectance infrared Fourier transform spectroscopy
light olefins
methanol
Mg–HZSM-5/Al2O3 catalyst
syngas

Abstract

At low temperatures (300--320 °C), on a Mg–HZSM-5/Al2O3 catalyst, dimethyl ether provides a higher yield of light olefins than methanol, but its conversion is strongly suppressed in a syngas atmosphere compared with an inert nitrogen environment. In situ diffuse reflectance infrared Fourier transform spectroscopy revealed that this suppression is attributed to CO-induced carbonylation side reactions resulting in the formation of methyl acetate and acetic acid depleting Brønsted acid sites. Efficient olefin production requires temperatures above 350 °C to mitigate the carbonylation inhibition.

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