B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 21/04 (2006.01) B01J 37/00 (2006.01) C01F 7/02 (2006.01)
Patent
CA 2559451
A method of forming a carrier material suited to use in Fischer-Tropsch reactions includes forming a dispersion of first and second hydrated alumina materials in a liquid dispersant, such as an acid solution. The first alumina can be derived from an alkali aluminate, such as is formed in the Bayer reaction. The second hydrated alumina can be derived from high purity aluminum, such as via conversion to an alkoxide. The dispersion is spray dried to form particles which are heat treated to form a carrier material having low levels of impurities.
L'invention porte sur un procédé qui permet de former un matériau de support convenant aux réactions de Fischer-Tropsch, selon lequel on forme une dispersion d'un premier et d'un second matériau alumine hydraté dans un dispersant liquide tel qu'une solution acide. La première alumine peut être dérivée d'un aluminate alcalin, tel que celui qui se forme lors de la réaction Bayer. La seconde alumine hydratée peut être dérivée d'un aluminium de grande pureté, par exemple par conversion en un alcoxyde. On soumet la dispersion à une atomisation qui permet d'obtenir des particules auxquelles on fait subir un traitement thermique afin de former un matériau de support présentant un faible niveau d'impuretés.
Bauer Ralph
Dahar Stephen
Koch Samuel M.
Korwin Douglas M.
Szymanski Thomas
Gowling Lafleur Henderson Llp
Saint-Gobain Ceramics & Plastics Inc.
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