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The evaluation of the mechanisms involved in the extraction of nickel from low concentration effluents by means of supported liquid membrane
(North-West University, 2004)
From an economic point of view, the use of membranes at the present time is intermediate between the development of first generation membrane processes and second generation processes such as supported liquid membranes. ...
Product evaluation and reaction modelling for the devolatilization of large coal particles
(North-West University, 2012)
A fundamental understanding of the process of devolatilization requires extensive knowledge of not only the intrinsic properties of the parent coal and its subsequent formed products (tars,
gases and chars), but also its ...
Characterisation and reaction kinetics of high ash chars derived from inertinite-rich coal discards
(North-West University, 2007)
An investigation was undertaken to determine the gasification and combustion characteristics of chars derived from an inertinite-rich coal discard sample with a high ash content. Fundamental knowledge of the reaction rate ...
Sulphur dioxide capture under fluidised bed combustion conditions using dolomite and coal ash as sorbents
(North-West University, 2007)
A study was done to investigate sulphur dioxide capture capacities of South African mined dolomites, limestone and coal ash derived from high inertinite coal. The study was carried out under atmospheric and pressurised ...
The influence of CO? on the steam gasification rate of a typical South African coal
(North-West University, 2013)
It is recognised that the reactions with steam and CO2 are the rate limiting step during coal gasification, and a vast number of studies has been dedicated to the kinetics of these reactions. Most studies were carried out ...
The influence of minerals content and petrographic composition on the gasification of inertinite rich high ash coal
(North-West University, 2010)
Coal particles with different densities have different mineral and maceral compositions and this affects the gasification reaction rates, especially in coals with high ash contents. This study involved the characterization ...
Hydrodynamic studies and reactor modelling of a three phase slurry reactor in Fischer Tropsch application
(Potchefstroom University for Christian Higher Education, 1992)
In this .study the hydrodynamic characteristics of the slurry bed reactor was investigated. This study was aimed to the under" standing of the important parameters that describe the hydrodynamic regime and their quantification. ...
Fischer-Tropsch studies in the slurry phase favouring wax production
(North-West University, 1994)
The Fischer-Tropsch synthesis over iron and cobalt based catalysts has been investigated in the slurry phase. Reaction conditions were restricted to those conducive for the optimum production of synthetic wax (i.e. high ...
Catalytic steam gasification of large coal particles
(North-West University, 2011)
Catalytic gasification has been studied extensively in order to develop more efficient and economic coal conversion processes. Fundamental studies regarding catalytic gasification have thus far focused on experimentation ...
Single and binary gas transport of H2, CO and CO2 through a NaA-centrifugally casted alumina composite membrane
(North-West University, 2006)
NaA (or Linde Type A: [Na+12 (H20)27]8 [Al12Si12O48]8 -LTA) membranes were
prepared on centrifugally casted alumina supports and tested for its permeation and
separation properties using single gasses and binary mixtures ...