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Deactivation of Co-Al2O3/SiO2 Fischer–Trospch Synthesis Catalyst in Industrially Relevant Conditionsстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 7 июля 2020 г.
- Авторы: Savost’yanov A.P., Eliseev O.L., Yakovenko R.E., Narochniy G.B., Maslakov K.I., Zubkov I., Soromotin V.N., Kozakov A.T., Nicolskii A.V., Mitchenko S.A.
- Журнал: Catalysis Letters
- Том: 150
- Номер: 7
- Год издания: 2020
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 1932
- Последняя страница: 1941
- DOI: 10.1007/s10562-020-03097-z
- Аннотация: The deactivation rate of Co-Al2O3/SiO2 Fischer–Tropsch synthesis catalyst have been experimentally assessed at industrially relevant conditions (T 198–237 °C, P = 60 bar, H2/CO = 1.85, GHSV 2000–7000 h–1). The fresh and spent catalyst was characterized by XRD, XPS, BET, TEM, and SEM–EDX techniques. Decreasing active surface area due to cobalt oxidation by product water and sintering of cobalt crystallites were found to be minor factors for the deactivation. The principal reason of activity loss seems is diffusion limitations arising due to catalyst pores plugging by product wax. The linear dependence between gas flow rate and estimated catalyst lifetime was revealed. High GHSV of fresh synthesis gas and/or high circulation ratio of product gas should be employed to prevent rapid loss of catalyst activity.
- Добавил в систему: Маслаков Константин Игоревич