Browsing Faculty of Engineering by Subject "HT-XRD"

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Evaluation of mineral matter transformations in low-temperature ashes of South African coal feedstock samples and their density separated cuts using high-temperature X-ray diffraction

Rautenbach, Rudelle; Matjie, Ratale H.; Strydom, Christien A.; Bunt, John R.; Ward, Colin R. (Taylor & Francis, 2020)

Coal mineral matter is the leading cause of inevitable ash problems (fouling and slagging) during the combustion of coal. Low-temperature ash (LTA) samples of feed coals and the density separated fractions were subjected ...
Quantification of oxygen capture in mineral matter during gasification

Van Dyk, J.C.; Waanders, F.B.; Van Heerden, J.H.P. (Elsevier, 2008)

It has been observed that during the transformation of minerals at higher temperatures (>1000 °C), mineral species are formed containing a high number of oxygen molecules, i.e. gehlenite (Ca2Al2SiO7), mullite (Al6Si3O15), ...