High fuel preparation

Stationary power generation on a large scale may use either low- or high-temperature fuel cell systems, and several systems rated at up to a few hundred kW have been operated (Barbir, 2003 Bischoff et ah, 2003 Veyo et ah, 2003). The systems comprise the basic units of PEMFC, MCFC or SOFC as described in Chapter 3, combined with fuel preparation and exhaust clean-... 

The reverse of reaction (2.1) is methanation. Used to remove residual CO traces from ammonia synthesis feedstocks, it was also developed as an important source of substitute natural gas (SNG) in the synthetic fuels industry. Since this reaction is exothermic, equilibrium yields are better at low temperatures (300-500 C). Thus, high activity is critical. Nickel must be highly dispersed. Preparational methods are required to produce small nickel crystallites. This high metal area must be maintained in the presence of extreme exothermicity, so that sintering must be avoided. This is partially accomplished through proper catalyst design, but process reactor type must also be considered. Recycle, fluidized, and slurry reactors are appropriate. 

Haas, M.J., K. M. Scott T.L. Alleman R.L. McCormick. Engine performance of biodiesel fuel prepared from soybean soapstock a high quality renewable fuel produced from a waste feedstock. Energy Fuels 200, 15, 1207-1212. 

A method for determining the reactivity of highly sub-critical systems of fissile material, u ng neutron-noise power spectral densities in conjunction with a %f source, had previously been tested in two fast reactor critical assemblies (a mockup of the Fast Flux Test Facility reactor and unreflected enriched uranium metal assemblies ) and one thermal reactor (a light water moderated and reflected lattice of Oak Ridge Research Reactor ftiel elements. The last-mentkmed test demonstrated the effectiveness of the method in watermoderated systems and thereby prompted the prexnt study, of its application to facilities for fuel preparation, reprocessing, and storage. 

High combustibles in the refuse indicates a need for adjustments or maintenance of fuel-preparation and -burning equipment. 

Its purpose is to partially convert heavy fractions highly contaminated by natural compounds such as sulfur, nitrogen, metals Ni, V, and asphaltenes and to prepare feedstocks for deeper conversion or to produce low-sulfur fuel-oil. 

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