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Conversion of Dimethyl Ether to Liquid Hydrocarbons over Zn-Isomorphously Substituted HZSM-5 Научная публикация

Журнал Fuel
ISSN: 0016-2361 , E-ISSN: 1873-7153
Вых. Данные Год: 2022, Том: 320, Номер статьи : 123959, Страниц : 10 DOI: 10.1016/j.fuel.2022.123959
Ключевые слова Zn-HZSM-5, Isomorphous substitution, Dimethyl ether, Conversion, Liquid hydrocarbons, I-alkanes, DME + synga
Авторы Vosmerikova L.N. 1 , Matieva Z.M. 2 , Snatenkova Yu.M. 2 , Kolesnichenko N.V. 2 , Zaikovskii V.I. 3 , Vosmerikov A.V. 1
Организации
1 Institute of Petroleum Chemistry SB RAS, Akademicheskiy prospect, 4, 634055 Tomsk, Russian Federation
2 Institute of Petrochemical Synthesis A.V. Topchiev RAS, Leninsky prospect, 29, 119991 Moscow, Russian Federation
3 Institute of Catalysis G.K. Boreskov SB RAS, Prospect Akademika Lavrent'ev, 5, Novosibirsk 630090, Russian Federation

Информация о финансировании (1)

1 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 0295-2021-0004

Реферат: Zinc-isomorphously substituted HZSM-5 (Zn/HZSM-5(iso)) surpasses Zn/HZSM-5(i.e) sample obtained by ion exchange in its catalytic performance in the conversion of a mixture of DME + syngas (in different compositions) to liquid hydrocarbons. The uniform distribution of highly dispersed zinc species over zeolite crystals provides high selectivity of Zn/HZSM-5(iso) to liquid hydrocarbons (90 wt%). New ZnOH+ active sites of medium strength with mild hydrogenation properties explain the low yield of arenes (4.7 wt%) and the high yield of i-alkanes (72.5 wt%). The absence of methanol in the product stream indicates its dehydration to DME, which is known to have a higher reactivity or its participation in the methylation of alkenes to form methyl-substituted alkanes. A larger mesopores volume in Zn/HZSM-5(iso) promotes a lower degree of coke precursors polycondensation. Therefore, this allows the use of mild oxidative regeneration conditions. The Zn/HZSM-5(iso) catalyst retains its efficient and stable operation for 72 h, with high conversion of DME and high selectivity for liquid hydrocarbons. The resulting hydrocarbon mixture can be used as a base component for environmentally friendly fuels.
Библиографическая ссылка: Vosmerikova L.N. , Matieva Z.M. , Snatenkova Y.M. , Kolesnichenko N.V. , Zaikovskii V.I. , Vosmerikov A.V.
Conversion of Dimethyl Ether to Liquid Hydrocarbons over Zn-Isomorphously Substituted HZSM-5
Fuel. 2022. V.320. 123959 :1-10. DOI: 10.1016/j.fuel.2022.123959 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 6 сент. 2021 г.
Принята к публикации: 20 мар. 2022 г.
Опубликована online: 1 апр. 2022 г.
Опубликована в печати: 15 июл. 2022 г.
Идентификаторы БД:
Web of science: WOS:000806782500007
Scopus: 2-s2.0-85127335525
РИНЦ: 48423409
Chemical Abstracts: 2022:879461
Chemical Abstracts (print): 180:120724
OpenAlex: W4220915556
Цитирование в БД:
БД Цитирований
OpenAlex 13
Web of science 13
Scopus 12
Альметрики: