Process for the preparation of hydrocarbons

C - Chemistry – Metallurgy – 07 – C

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C07C 1/04 (2006.01) B01J 23/89 (2006.01) C10G 2/00 (2006.01)

Patent

CA 2408318

A Fischer-Tropsch process for producing hydrocarbons, comprising contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons, wherein the catalyst comprises at least one catalytically active metal selected from the group consisting of cobalt, iron, nickel and ruthenium and combinations thereof, a catalyst support, and silver. The catalyst may include a promoter. A preferred catalyst comprises cobalt, platinum and/or ruthenium and/or rhenium, and silver supported on a support selected from the group consisting of Al2O3, ZrO2, sulfated ZrO2, WO3-ZrO2, MCM-41, H-Beta, Sylopol SiO2, AlF3, fluorided Al2O3, bentonite, zeolite, TiO2, and SiO2-Al2O3, molecular sieves, and combinations thereof.

Cette invention concerne un procédé Fischer-Tropsch de production d'hydrocarbures. Ce procédé consiste à mettre en contact un flux d'alimentation contenant de l'hydrogène et du monoxyde de carbone avec un catalyseur dans une zone de réaction maintenue dans des conditions de stimulation de conversion efficaces pour produire un courant d'effluent. Le catalyseur peut comprendre au moins un métal actif au plan catalytique pris dans le groupe comprenant le cobalt, le fer, le nickel et le ruthénium, seuls ou en combinaison, un support catalytique et de l'argent. Le catalyseur peut comprendre un promoteur. On utilise de préférence un catalyseur contenant du cobalt, du platine et/ou du ruthénium et/ou du rhénium, ainsi que de l'argent sur un support pris dans le groupe comprenant Al¿2?O¿3?, ZrO¿2?, ZrO¿2? sulfaté, WO¿3?-ZrO¿2?, MCM-41, H-Béta, Sylopol SiO¿2?, AlF¿3?, Al¿2?O¿3? fluoré, bentonite, zéolite, TiO¿2?, et SiO¿2?-Al¿2?O¿3?, des tamis moléculaires, ainsi que des combinaisons des composés susmentionnés.

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