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Green coal development for application in fixed-bed catalytic gasification
(SAIMM, 2018)
A novel ‘green coal’ product formulation has recently been developed and
the utilization concept tested at the North-West University coal research
laboratories. Hydrothermal liquefaction was used to produce bio-oil ...
Coal utilization in an uncertain economic world: a South African perspective
(Swanson School of Engineering, Univ of Pittsburgh, 2015)
Conceptual use of vortex technologies for syngas purification and separation in UCG applications
(SAIMM, 2018)
Syngas from Africary's Theunissen underground coal gasification (UCG) project will be used for power production and synthesis of liquid fuels and commodity chemicals. However, some of the coal components, especially ...
Groundwater monitoring during underground coal gasification
(SAIMM, 2018)
Underground coal gasification (UCG) is a fast-emerging, in situ mining technology that provides access to low-cost energy through the utilization of coal reserves that are currently not technically or economically exploitable ...
Colouring of dolomite, quartzite and dolerite mine dump rocks
(EARET, 2018)
For environmental and aesthetic purposes it has
become essential that mine dump rocks either blend into the
environment or be used in the production of other products.
Lately, there has been a constant need to produce ...
CO2 reactivity of briquettes derived from discard inertinite-rich Highveld coal using lignosulphonate and resin as binders
(SAIMM, 2019)
South African collieries generate approximately 31 Mt of fine and ultrafine coal annually, with the
majority of the ultrafine fraction discarded in slurry ponds and underground workings. Use can be made
of this energy ...
Potential toxic elements contamination of soils in O’Kiep, an arid region of Namaqualand, South Africa
(EARET, 2018)
The aim of this study was to evaluate the geochemical
background and spatial distribution patterns of selected potential
toxic elements (PTEs) in ten sub-surface soil samples (n=10)
collected in the former copper mining ...
Testing of briquettes made from Witbank coal fines with polyvinyl alcohol as binder
(EARET, 2018)
Approximately 12% of South Africa’s mined coal
can be classified as fine coal. Fine coal is primarily formed through
mechanical mining methods and can cause blockage in equipment,
transportation mechanisms and silos. ...
Hydrothermal preparation of biochar from spent coffee grounds, and its application for the removal of cadmium from coal tailings leachate
(SAIMM, 2019)
Spent coffee grounds were transformed into biochar using a hydrothermal method. Some of the biochar
product was pre-treated through surfactant impregnation with sodium dodecyl sulphate (SDS) to
enhance its adsorption ...
Manufacturing and testing of briquettes from inertinite-rich low-grade coal fines using various binders
(SAIMM, 2018)
Inertinite-rich, low-grade coal was used with 12 binders: clays (attapulgite
and bentonite), biochar, cow dung, crystallized medium-tar pitch, coal tar
sludge, flocculant, fly ash, lignosulphonates, polyester resin, and ...