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Volatile trace element behaviour in the Sasol® fixed-bed dry-bottom (FBDB)™ gasifier treating coals of different rank
(Elsevier, 2011)
Trace element simulation and validation of model predictions for the elements Hg, As, Se, Cd and Pb have recently been undertaken for the Sasol® FBDB™ gasification process operating on lump coal. The validation was conducted ...
Physical property behaviour of North Dakota lignite in an oxygen/steam blown moving bed gasifier
(Elsevier, 2013)
In this study lignite originating from North Dakota (USA) was thermally treated in an oxygen/steam blown
commercial-scale moving bed gasifier operating on lump coal at the Dakota Gasification Company (DGC)
in order to ...
The effect of particle size on the rate and depth of moisture evaporation from coal stockpiles
(SAIMM, 2016)
Excessive amounts of moisture in product coal can influence the efficiency
of downstream utilization processes due to a decreased calorific value and
handling problems. Stockpiles can be used to decrease the moisture
content ...
Reactivity study of fine discard coal agglomerates
(Elsevier, 2015)
In this laboratory study thermo-gravimetric analyses were conducted to determine the influence of the addition of an alkaline metal catalyst (K2CO3 incorporated into a fine discard coal agglomerate mixture by physical ...
Influence of additives on the devolatilization product yield of typical South African coals, and effect on tar composition
(SAIMM, 2018)
South African coal is mainly used for electricity generation by means of
pulverized fuel combustion and liquid fuels production via indirect
gasification technology and Fischer-Tropsch synthesis. In order to expand
the ...
Electrical resistivity of carbonaceous bed material at high temperature
(Springer Verlag, 2020)
This study reports the effect of high-temperature treatment on the electrical properties of charcoal, coal, and coke. The electrical resistivity of industrial charcoal samples used as a reducing agent in electric arc ...
Preparation of biochars for co-gasification from sweet sorghum bagasse
(ETA-Florence Renewable Energies, 2015)
Biochar is a solid product obtained through torrefaction, liquefaction or pyrolysis of organic material. It can be used for soil amendment, activated carbon for sequestration, or as bio-coal for gasification or co-gasification. ...
The effect of added minerals on the pyrolysis products derived from a vitrinite-rich demineralised South African coal
(Elsevier, 2016)
A better understanding of the behaviour of the inorganic matter present in coal will assist in more cost-effective operations and more consistency in product yield and composition during thermal processing. In this study, ...
Validation of using a modified BET model to predict the moisture adsorption behavior of bituminous coal
(Taylor & Francis, 2016)
A good correlation exists between the amount of moisture adsorbed and the oxygen content of medium-rank B vitrinite-rich and medium-rank C inertinite-rich bituminous coal. Total mass moisture adsorbed per gram of coal ...
The use of Mössbauer spectroscopy in environmental research
(Springer, 2017)
The impact that mining has on the environment is becoming an ever increasing problem all over the world. South Africa, Brazil and India are main producers of various valuable resources such as for example iron ore, platinum, ...