Fischer-Tropsch synthesis iron catalyzed

Fischer Tropsch synthesis is catalyzed by a variety of transition metals such as iron, nickel, and cobalt. Iron is the preferred catalyst due to its higher activity and lower cost. Nickel produces large amounts of methane, while cobalt has a lower reaction rate and lower selectivity than iron. By comparing cobalt and iron catalysts, it was found that cobalt promotes more middle-distillate products. In FTS, cobalt produces... 

Li, S., Ding, W., Meitzner, G.D., and Iglesia, E. 2002. Spectroscopic and transient kinetic studies of site requirements in iron-catalyzed Fischer-Tropsch synthesis. J. Phys. Chem. B 106 85-91. 

The relevant reactions for the iron catalyzed Fischer-Tropsch synthesis are ... 

Non-Flory Product Distributions in Fischer— Tropsch Synthesis Catalyzed by Ruthenium, Cobalt, and Iron... 

Many of the catalysts which are usefiil in Fischer-Tropsch synthesis are also capable of catalyzing the hydrogenation of CO2 to hydrocarbons. Our structure-function studies have shown that it is possible to control the selectivity of CO2 hydrogenation by specific iron-based catalysts to generate yields of C5+ hydrocarbons that are comparable to those produced with conventional CO based... 

TI Non-Flory product distributions in Fischer - Tropsch synthesis catalyzed by ruthenium, cobalt. and iron KW Fischer Tropsch synthesis hydrocarbon distribution. Flory kinetics carbon monoxide hydrogenation, chain growth carbon monoxide hydrogenation, ruthenium catalyst carbon monoxide hydrogenation, cobalt iron catalyst hydrocarbon distribution IT Hydrocarbons, preparation... 

Here the chemical formula is written CH2, which is one-eighth of a typical gasoline molecule (CgHi6). The reaction is catalyzed by a number of metal-based catalysts including iron, cobalt, and nickel. The reactors in which the synthesis takes place operate within a temperature range of 225 to 365°C and at pressures from 0.5 to 4 MPa. It should also be noted that the Fischer-Tropsch reactions produce a wide spectrum of oxygenated compounds such as alcohols. 

Historical Development and Future Perspectives The Fischer-Tropsch process dates back to the early 1920s when Franz Fischer and Hans Tropsch demonstrated the conversion of synthesis gas into a mixture of higher hydrocarbons, with cobalt and iron as a catalyst [35, 36], Some 20 years earlier, Sabatier had already discovered the reaction from synthesis gas to methane catalyzed by nickel [37]. The FTS played an important role in the Second World War, as it supplied Germany and Japan with synthetic fuel. The plants used mainly cobalt catalysts supported on a silica support called kieselguhr and promoted by magnesia and thoria. 

The Fischer-Tropsch (FT) synthesis reaction is an important means of producing higher hydrocarbons (C1-C20+) from synthesis gas (CO and H2), including those in the liquid fuel and chemical intermediates range. The reaction is typically heterogeneously catalyzed using supported cobalt, iron, or ruthenium catalysts, and... 

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