Deactivation of Co-Al2O3/SiO2 Fischer–Trospch Synthesis Catalyst in Industrially Relevant Conditions

Deactivation of Co-Al2O3/SiO2 Fischer–Trospch Synthesis Catalyst in Industrially Relevant Conditions Full article

Journal

Catalysis Letters
ISSN: 1572-879X , E-ISSN: 1011-372X

Output data

Year: 2020, Volume: 150, Number: 7, Pages: 1932-1941 Pages count : 10 DOI: 10.1007/s10562-020-03097-z

Authors

Savost’yanov Alexander P. ¹ , Eliseev Oleg L. ² , Yakovenko Roman E. ¹ , Narochniy Grigoriy B. ¹ , Maslakov Konstantin I. ³ , Zubkov Ivan ¹ , Soromotin Vitaliy N. ¹ , Kozakov Alexey T. ⁴ , Nicolskii Anatolii V. ⁴ , Mitchenko Serge A. ¹

Affiliations

1	Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia
2	N.D. Zelinsky Institute of Organic Chemistry, Moscow, Russia
3	Department of Chemistry, Lomonosov Moscow State University, Moscow, Russia
4	Scientific Research Institute of Physics At Southern, Federal University, Rostov-on-Don, Russia

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.

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.
Deactivation of Co-Al2O3/SiO2 Fischer–Trospch Synthesis Catalyst in Industrially Relevant Conditions
Catalysis Letters. 2020. V.150. N7. P.1932-1941. DOI: 10.1007/s10562-020-03097-z WOS Scopus OpenAlex

Web of science:	WOS:000534516300011
Scopus:	2-s2.0-85078583965
OpenAlex:	W2998794540

DB	Citing
OpenAlex	24
Scopus	21
Web of science	21