This research investigates the effects of a synthetic diesel-like fuel (Fischer-Tropsch diesel) and biofuels (ethanol biodiesel) blends on energy-exergy efficiencies gaseous exhaust emissions characteristics compression ignition engine. Two alternative fuels denoted as E15B35FTD50 (15% ethanol, 35% biodiesel, 50% Fischer-Tropsch E15B35D50 were experimentally studied single-cylinder diesel engin...

Single pass Fischer–Tropsch biogas-to-diesel process for off-grid fuel production in remote regions. Diesel yields optimized by operating at a higher-than-industrial CO conversions of 80% with manganese-promoted cobalt catalyst.

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...

Correlating Pressure Drop and Liquid Holdup Werner van der Merwe , Dylan Loudon and Willie Nicol a Department of Chemical Engineering, University of Pretoria, South Africa b Fischer-Tropsch Refinery Catalysis, Sasol Technology Research and Development # Correspondence to: Department of Chemical Engineering, University of Pretoria, Pretoria 0002, South Africa, Tel: +27-12-420-3796, Fax: +27-12-3...

Water increases Fischer-Tropsch synthesis (FTS) rates on Ru through H-shuttling processes. Chemisorbed hydrogen (H*) transfers its electron to the metal and protonates the O-atom of CO* to form COH*, which subsequently hydrogenates to *HCOH* in the kinetically relevant step. H2 O also increases the chain length of FTS products by mediating the H-transfer steps during reactions of alkyl groups w...

Synchrotron X-ray diffraction coupled to atomic pair distribution function analysis and Reverse Monte Carlo simulations is used to determine the atomic-scale structure of Ru nanoparticle catalysts for the Fischer-Tropsch reaction. The rate of CO hydrogenation strongly correlates with the abundance of surface atoms with coordination numbers of 10 and 11. DFT calculations confirm that CO dissocia...

Converting coal or natural gas into synthetic crude oil (Fischer-Tropsch method) is a costly and difficult undertaking associated with long development timeframes of up to a decade or longer, which may no longer be available (Hirsch, 2006). It would also result in a net increase in carbon emissions unless carbon is captured and geo-sequestered. This technology remains untried, would be financia...