Fischer–Tropsch synthesis seems to develop the following two consecutive paths: a primary process that involves the formation of ®-olefin products and a secondary process leading to the production of branched isomers and paraffins and requiring the readsorption of primary ®-olefin products. It was already shown by Iglesia et al. (E. Iglesia, S. C. Reyes, and R. J. Madon, J. Catal. 129, 238 (1991)) that such readsorption steps are of fundamental importance for Ru catalysts and that they occur due to the slow diffusive removal of ®-olefins when the molecular size increases, this resulting in a long intraparticle residence time. In the present paper ®-olefins readsorption was enhanced by changing the metal distribution inside the pores of a titanium silicate (ETS-10), modified by ion exchange with alkali metal ions, used as a support for Ru-based catalysts.

Experimental Evidence of ®-Olefin Readsorption in Fischer–Tropsch Synthesis on Ruthenium-Supported ETS-10 Titanium Silicate Catalysts / C.L. Bianchi, V. Ragaini. - In: JOURNAL OF CATALYSIS. - ISSN 0021-9517. - 168:1(1997), pp. 70-74.

Experimental Evidence of ®-Olefin Readsorption in Fischer–Tropsch Synthesis on Ruthenium-Supported ETS-10 Titanium Silicate Catalysts

C.L. Bianchi;
1997

Abstract

Fischer–Tropsch synthesis seems to develop the following two consecutive paths: a primary process that involves the formation of ®-olefin products and a secondary process leading to the production of branched isomers and paraffins and requiring the readsorption of primary ®-olefin products. It was already shown by Iglesia et al. (E. Iglesia, S. C. Reyes, and R. J. Madon, J. Catal. 129, 238 (1991)) that such readsorption steps are of fundamental importance for Ru catalysts and that they occur due to the slow diffusive removal of ®-olefins when the molecular size increases, this resulting in a long intraparticle residence time. In the present paper ®-olefins readsorption was enhanced by changing the metal distribution inside the pores of a titanium silicate (ETS-10), modified by ion exchange with alkali metal ions, used as a support for Ru-based catalysts.
Settore CHIM/04 - Chimica Industriale
JOURNAL OF CATALYSIS
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/176464
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