Carbon–Silica Composite as an Effective Support for Iron Fischer–Tropsch Synthesis Catalysts

Carbon–Silica Composite as an Effective Support for Iron Fischer–Tropsch Synthesis Catalysts Full article

Journal

Energy Technology
ISSN: 2194-4288 , E-ISSN: 2194-4296

Output data

Year: 2019, Volume: 7, Number: 4, Article number : 1800961, Pages count : DOI: 10.1002/ente.201800961

Authors

Chernavskii Petr A. ¹ , Kazantsev Ruslan V. ² , Pankina Galina V. ¹ , Maslakov Konstantin I. ¹ , Lunin Boris S. ¹ , Eliseev Oleg L. ^1,2

Affiliations

1	Department of Chemistry, Lomonosov Moscow State University, 3-1 Leninskie Gory, Moscow, 119234 Russia
2	N.D. Zelinsky Institute of Organic Chemistry, 47 Leninsky prosp., Moscow, 119991 Russia

Carbon–silica composite is prepared by the impregnation of silica with aqueous glucose solution followed by drying and calcination in an inert atmosphere. This material is proposed as a support for the potassium-promoted iron catalysts for Fischer–Tropsch synthesis (FTS). The catalysts are prepared by incipient wetness impregnation. The reducibility of CQ-supported iron is increased and Hägg carbide is formed in the course of activation in CO/H2 flow at 400 °C for 2 h. Subsequent exposure in FTS conditions results in the significant increase of iron carbide particles, from 3–4 to 20–30 nm, while no such increase is detected for the pure silica as support. The carbon–silica composite support provides a beneficial effect on the catalytic activity of iron in CO hydrogenation as well as the suppression of methane formation and increasing Anderson–Schulz–Flory distribution (ASF) chain growth parameter. The catalysts are characterized by nitrogen adsorption, X-ray absorption spectroscopy (XPS), transmission electron microscopy (TEM), and in situ magnetic measurements in the course of temperature-programmed reduction by H2 and synthesis gas.

Chernavskii P.A. , Kazantsev R.V. , Pankina G.V. , Maslakov K.I. , Lunin B.S. , Eliseev O.L.
Carbon–Silica Composite as an Effective Support for Iron Fischer–Tropsch Synthesis Catalysts
Energy Technology. 2019. V.7. N4. 1800961 . DOI: 10.1002/ente.201800961 WOS Scopus OpenAlex

Web of science:	WOS:000466486200009
Scopus:	2-s2.0-85063913824
OpenAlex:	W2909798891

DB	Citing
OpenAlex	8
Scopus	8
Web of science	7