support vector regression (svr) is a learning method based on the support vector machine (svm) that can be used for curve fitting and function estimation. in this paper, the ability of the nu-svr to predict the catalytic activity of the fischer-tropsch (ft) reaction is evaluated and the result is compared with two other prediction techniques including: multilayer perceptron (mlp) and subtractiv...

kinetic modeling is an important issue, whose objective is the accurate determination of the rates of various reactions taking place in a reacting system. this issue is a pivotal element in the process design and development particularly for novel processes which are based on reactions taking place between various types of species. the fischer tropsch (ft) reactions have been used as the kineti...

The design and optimization of a natural gas to hydrocarbon liquids (GTL) process is considered, mainly from the view of maximizing the variable income during operation. Autothermal reforming (ATR) is used for synthesis gas production. The kinetic model for Fischer Tropsch (FT) reactions is the one given by Iglesia et al. for a cobalt-based FT reactor. For the product distribution, three altern...

Fischer–Tropsch (FT) synthesis is a process in which synthesis gas (CO/H2) is catalytically converted into hydrocarbons and oxygenates via surface polymerizations. With this process, clean liquid fuels can be made from abundant natural gas reserves and renewable biomass sources, after first being converted to synthesis gas. In the last several decades, FT synthesis has attracted renewed attenti...

The structural properties and activities of Cu-Co catalysts used in Fischer-Tropsch synthesis are explored according to their method of preparation. Impregnation, co-precipitation, and a novel method of thermal decomposition were applied to an inorganic precursor complex to generate the Cu-promoted alumina- and silica-supported cobalt catalysts. The precursors and the catalysts obtained by ...

The Fischer-Tropsch synthesis (FTS) has been recognized as a heterogeneous surface-catalyzed polymerization process. During this process, CHx monomers formed via the hydrogenation of adsorbed CO on transition metals produce hydrocarbons and oxygenates with a broad range of chain lengths and functional groups. A series of Fe/Cu Fischer-Tropsch synthesis catalysts incorporated with a calcium prom...

The Fischer–Tropsch process is a collection of chemical reactions that converts mixture carbon monoxide and hydrogen, known as syngas, into liquid hydrocarbons. These occur in the presence metal catalysts, typically at temperatures 150–300°C (302–572°F) pressures one to several tens atmospheres. an important reaction both coal liquefaction gas liquids technology for producing In usual implement...

Fischer–Tropsch technology has gathered renewed interest in the energy industry in recent times for synthesis of diesel and gasoline. The synthesis of linear hydrocarbon diesel fuel (having high cetane number) through Fischer–Tropsch synthesis (FTS) reaction requires syngas with high H2/CO molar ratio. Producer gas obtained from biomass gasification has low H2/CO ratios, with significant conten...

Fischer-Tropsch(FT) reaction involves the hydrogenation of carbon monoxide to hydrocarbons typically by group VIII metals [1]. Cobalt is one of the first metals used as FT catalyst and is typically mixed with Mn to promote carbon monoxide conversion to more valuable higher (C5+) hydrocarbons and olefins. The properties of metal catalysts can be controlled by fine-tuning chemical composition, su...

fischer-tropsch synthesis is a promising route for production of light olefins via co hydrogenation over transition metals. co is one of the most active metals for fischer-tropsch synthesis. some different variables such as preparation parameters and operational factors can strongly affect the selectivity of fischer-tropsch synthesis toward the special products. in the case of preparation varia...