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Now showing items 11-20 of 36
Gasification and combustion kinetics of typical South African coal chars
(2015)
An investigation was undertaken to compare the kinetics of combustion and gasification reactions of chars prepared from two South African coals in different reaction atmospheres: air, steam, and carbon dioxide. The two ...
The influence of particle size and devolatilisation conditions on the CO2 gasification of Highveld coal
(North-West University, 2011)
The influence of particle size and devolatilisation conditions on the CO2 reactivity of Highveld seam 4 run of mine coal were investigated in a large particle thermo–gravimetric system. Particle sizes of 5 mm, 10 mm, 20 ...
Low-smoke fuel production via low temperature pyrolysis of lump coal
(North-West University (South Africa) , Potchefstroom Campus, 2016)
Coal is used on a large scale in the Kwadela Township, Mpumalanga, South Africa with the means to fulfil the basic energy requirements of low-income households. Energy within the coal is utilised via combustion thereof in ...
The molecular structure of selected South African coal-chars to elucidate fundamental principles of coal gasification
(2015)
Advances in the knowledge of chemical structure of coal and development of high
performance computational techniques led to more than hundred and thirty four
proposed molecular level representations (models) of coal ...
Integrated model of sulphur dioxide absorption into limestone slurry in an agitated vessel
(North-West University (South Africa), 2020)
An investigation was undertaken to develop and validate an integrated model for ab-sorption of sulphur dioxide involving a gas-slurry system consisting of limestone in order to contribute to the understanding and modelling ...
The development of autothermal microchannel reactor technology for hydrogen-based gas processing
(North-West University (South Africa), 2021)
Key challenges associated with the production, transport, storage and continuous use of
hydrogen (H₂), generated from renewable energy, is the natural intermittency of some
renewable resources such as solar photovoltaic ...
Carbon dioxide capture from flue gases using dry sorbents
(North-West University (South Africa), 2021)
The project entails capturing CO₂ produced from industrial flue gases with dry adsorbents through gas adsorption to mitigate the CO₂ emissions. Four commercially available activated carbon samples (CQ006, CQ30P, CQ650 and ...
The use of crosslinked polyethylene for the manufacturing of membranes
(Potchefstroom University for Christian Higher Education, 1999)
Increasing environmental awareness over the past decade as well as stringent
environmental laws forced all factories to invest in water treatment processes for
effluent treatment before discharge or re-use. Most of these ...
Fluidised bed gasification of high-ash South African coals : an experimental and modelling study
(2014)
South Africa has large coal reserves and produces approximately 74% of its primary
energy from coal. Coal gasification using moving bed gasifiers is one of the most
important coal utilisation technologies, consuming ± ...
Characterisation and fluidised bed gasification of selected high-ash South African coals
(North-West University, 2008)
South Africa has abundant coal reserves and produces approximately 75 % of its primary energy from coal. Based on scientific analysis, however, it is generally accepted that a link exists between climate change and the use ...