Browsing Faculty of Engineering by Subject "South African coal"

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Assessing the catalytic effect of coal ash constituents on the CO2 gasification rate of high ash, South African coal

Hattingh, Burgert B.; Everson, Raymond C.; Neomagus, Hein W.J.P.; Bunt, John R. (Elsevier, 2011)

The catalytic effect of inorganic species, within the ash, on the CO2 gasification of three South African coals containing similar carbon-structural properties (elemental, structural and petrographical properties) was ...
The effect of acid washing on the pyrolysis products derived from a vitrinite-rich bituminous coal

Roets, Leon; Strydom, Christien A.; Bunt, John R.; Neomagus, Hein W.J.P.; Van Niekerk, Daniel (Elsevier, 2015)

Extensive characterization of the pyrolysis products, derived from raw and acid washed samples of a vitrinite-rich South African bituminous coal is reported. Pyrolysis experiments were carried out with use of a modified ...
The preparation of activated carbon from South African coal

Campbell, Q.P.; Bunt, J.R.; Kasaini, H.; Kruger, D.J. (SAIMM, 2012)

Activated carbons used in the precious metals extraction industry are characterized by large internal surface areas and a great affinity for metal ions. The purpose of this research is to prepare activated carbon from ...