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Effect of K and Ni Promoters on Mo2C/Al2O3 Catalyst for Higher Alcohols Synthesis from Syngas Научная публикация

Журнал Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210
Вых. Данные Год: 2024, Том: 65, Номер: 3, Страницы: 251-260 Страниц : 10 DOI: 10.1134/s0023158424601189
Авторы Yang Zhi 1,2 , Luo Mingsheng 1,2,4 , Liu Qinglong 2,4 , Li Chenmeng 2 , Wang Yatao 3 , Li Hongjuan 3 , Yao Lifei 3
Организации
1 Faculty of Environment and Life Science, Beijing University of Technology, Beijing, 100124 China
2 School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing, 102617 China
3 Chemical R&D Center of Kailuan Group, Haigang Economic Development Zone, Tangshan, Hebei, 063611 China
4 Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology, Beijing Institute of Petrochemical Technology, Beijing, 102617 China
Реферат: The direct production of higher alcohols from syngas in a single step remains a great challenge. In this work, a series of K and Ni promoted Mo2C/Al2O3 catalysts were prepared by impregnation method to enhance the selectivity of Mo2C-based catalysts for the one-step conversion of syngas to higher alcohols. The catalysts were continuously tested under the following conditions: 300°C, 3.0 MPa, velocity—11.50 Lg-1Mo h–1, H2/CO ratio of 2. The catalysts promoted with K and Ni demonstrated the highest total alcohol selectivity of 67.7%. Moreover, the selectivity for total C2+ alcohols reached as high as 56%, with 37% being ethanol. X-ray diffraction (XRD), hydrogen temperature-programmed reduction (H2-TPR) and X-ray photoelectron spectroscopy (XPS) characterization data reveal that K can promote the crystallinity of β-Mo2C, lower the catalyst reduction temperature and increase the proportion of high-valent Mo on the catalyst surface. In addition, adding Ni as a promoter to the KMo2C/Al2O3 catalyst can generate a synergistic effect to further enhance the catalytic activity and the selectivity of higher alcohols.
Библиографическая ссылка: Yang Z. , Luo M. , Liu Q. , Li C. , Wang Y. , Li H. , Yao L.
Effect of K and Ni Promoters on Mo2C/Al2O3 Catalyst for Higher Alcohols Synthesis from Syngas
Kinetics and Catalysis. 2024. V.65. N3. P.251-260. DOI: 10.1134/s0023158424601189 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 6 мая 2023 г.
Принята к публикации: 28 янв. 2024 г.
Опубликована online: 15 авг. 2024 г.
Идентификаторы БД:
Web of science: WOS:001292130800006
Scopus: 2-s2.0-85201393946
РИНЦ: 68611523
Chemical Abstracts: 2024:1811873
Chemical Abstracts (print): 188:207478
OpenAlex: W4401607164
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