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A new approach to the modelling of the evolution of different chemical species from coal during its thermal decomposition under variable heating rate regimes was developed. The approach, which can be based on experimental data or the multiple-reaction model (MRM) with distributed activation...
Molecular hydrogen is formed as a result of low temperature (40°C–115°C) weathering of steam (bituminous) coal which occurs during relatively long term storage periods of coal piles. It is observed that formaldehyde is the precursor intermediate (formaldehyde was suggested as one of the...
Vapour-grown carbon fibres (VGCF) were produced from a methane–hydrogen mixture on a substrate seeded with an iron catalyst. The influence of the operating conditions and of the nature of the catalyst precursor on the yield and properties of the VGCF produced was investigated. The presence of...
Pyrolytic methods (standard Curie-point pyrolysis and pyrolysis in the presence of tetramethylammonium hydroxide (TMAH), followed by gas chromatography–mass spectrometry, were used to analyze the organic composition of Glyptostrobus (Taxodiaceae) remains from the Miocene deposits of Lipnica...
Coprocessing of common thermoplastics of polyethylene (PE), polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET) and acrylonitrile–butandiene–styrene (ABS) with waste lubricating oil was carried out. Statistical pentagonal design experiments in a microreactor system (40 ml...
The aim of this work was to obtain high calorific value products from coal fines cleaning wastes by agglomeration with vegetable oils. These residues are mainly being disposed of in dumps, causing important economic and environmental problems. Three Spanish coal fines wastes from different coal...
Interrelationships between extents of coal gasification, char gasification and combustion reactivities have been examined as a function of CO 2 and steam pressure and holding time. Experiments have been carried out in a high-pressure wire-mesh reactor equipped with a steam injection facility....
Laboratory tests have been undertaken on a suite of 12 mineral samples to ascertain their effectiveness as fouling alleviating additives to coal during combustion. Two samples of Victorian coal from the Loy Yang and Yallourn coal mines were used in the investigation. The laboratory tests include...
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