Fischer–Tropsch synthesis in milli-fixed bed reactor: Comparison with centimetric fixed bed and slurry stirred tank reactors

S. Chambrey 1 P. Fongarland 2, 1 H. Karaca 1 S. Piché 1 A. Griboval-Constant 1 D. Schweich 3 F. Luck 4 S. Savin 4 A.Y. Khodakov 1
1 UCCS - Unité de Catalyse et de Chimie du Solide - UMR 8181
2 INGENIERIE - INGENIERIE
IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon
3 LGPC - Laboratoire de Génie des Procédés Catalytiques
4 TOTAL S.A.
Abstract : This paper presents a comparative study of Fischer-Tropsch synthesis in single channel milli-fixed bed, conventional centimetric fixed bed and slurry stirred tank reactors. In the three reactors, the catalytic measurements were carried out with the same conventional platinum-promoted alumina supported cobalt catalyst at 493 K and 20 bar using a stoichiometric syngas ratio (H(2)/CO = 2). The single channel milli-fixed bed reactor displays a higher initial Fischer-Tropsch reaction rate than the conventional centimetric fixed bed reactor. This effect was assigned to a better temperature control and less significant catalyst deactivation during the startup of the single channel milli-fixed bed reactor. The slurry stirred tank reactor shows much lower hydrocarbon productivity than the milli- and centimetric fixed bed reactors, which is probably due to incomplete catalyst reduction. A considerable catalyst deactivation due to the uncontrolled temperature hike can occur during the reactor startup in the conventional centimetric fixed bed reactor. The slurry stirred tank and milli-fixed bed reactors show similar apparent deactivation behavior. (C) 2011 Elsevier B.V. All rights reserved.
Keywords : Fischer–Tropsch synthesis Cobalt-supported catalysts Millichannel reactor Slurry reactor Fixed bed reactor Deactivation
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Journal articles
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Submitted on : Thursday, November 15, 2018 - 2:32:46 PM
Last modification on : Thursday, November 21, 2019 - 2:40:41 AM

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S. Chambrey, P. Fongarland, H. Karaca, S. Piché, A. Griboval-Constant, et al.. Fischer–Tropsch synthesis in milli-fixed bed reactor: Comparison with centimetric fixed bed and slurry stirred tank reactors. Catalysis Today, Elsevier, 2011, 171 (1), pp.201 - 206. ⟨10.1016/j.cattod.2011.04.046⟩. ⟨hal-01923790⟩

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