Search
Now showing items 1-10 of 21
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 ...
Coal particle and bed physical transformational behaviour after thermochemical conversion in a fixed bed
(Elsevier, 2016)
This paper examines the physical transformational behaviour that coal particles and the bed structure undergo in a fixed bed reactor. The transient overfeed configuration is used with feed gas entering from the bottom of ...
Coal particle chemical transformational behaviour after thermochemical conversion in a fixed bed
(Elsevier, 2016)
This paper examines the chemical transformational behaviour that coal particles undergo during conversion in deep packed beds, typically found in industrial combustion and gasification operations. Experiments were performed ...
The influence of bedding-plane orientation on the degradation characteristics of a South African Waterberg coal
(Taylor & Francis, 2016)
A tomographic study of coal microstructure (coal bedding planes,
pre-existing cracks, microlithotype boundaries, and mineral boundaries)
was undertaken to explain its influence on coal degradation
due to impact. A number ...
The South African industry use of Mössbauer spectroscopy to solve operational problems
(Springer, 2014)
South Africa is a country that is very rich in mineral resources but the use of Mössbauer spectroscopy to solve operational industrial problems is however very limited. In the Bushveld Igneous Complex the main minerals ...
Coal product moisture control using stockpiles
(Springer, 2016)
The moisture content of product coal is a major factor influencing the efficiency of downstream coal utilization processes. Product stockpiles are often used as a control measure to regulate the moisture content of the ...
Coal-derived low smoke fuel assessment through coal stove combustion testing
(Elsevier, 2017)
A study was undertaken to investigate the production of low smoke fuel from coal currently used in low-income households in South Africa. Pyrolysis of large coal lumps was studied as a possible production method, and an ...
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, ...
A review of the application of X-ray computed tomography to the study of coal
(Elsevier, 2017)
There has been a long history of using X-rays to visualize coal and its transitions during various treatments. Advances and improved availability has allowed the application of X-ray computed tomography (CT) to create 3D ...
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 ...