«Proceedings of Gubkin University»

Effect of co-doping with ruthenium and lanthanum on efficiency of Co/γ-Al2O3 catalyst of Fischer – Tropsch process

UDC: 665.652.72+544.478.1+546.73
DOI: 10.33285/2073-9028-2023-4(313)-143-153

Authors:

¹ National University of Oil and Gas “Gubkin University”, Moscow, Russian Federation

Keywords: ruthenium, cobalt, lanthanum, Fischer – Tropsch catalyst, solid hydro-carbons, aluminum oxide

Annotation:

A comprehensive study of the influence of the Fischer – Tropsch process conditions and the combined effect of ruthenium and lanthanum on the catalytic efficiency of cobalt systems based on aluminum oxide was carried out. The catalyst was obtained by doping the carrier with lanthanum (1,5 % wt. %) with further deposition of cobalt (15 % wt. %) and ruthenium (0,15 % wt. %). The developed system was characterized by up-to-date physicochemical methods of analysis. The catalytic activity was investigated on a laboratory Fischer – Tropsch synthesis unit with an integral flow type reactor at feedstock flow rate 5 nl/(h∙gcat), CO/H2 ratio = 1/2, temperature 210–260 °C, pressure 2 MPa. As a result, a high conversion of carbon monoxide was obtained and optimal conditions for solid hydrocarbon production were identified.

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