Browsing Chemical Engineering by Title
Now showing items 173-192 of 281
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Modelling of the tubular filter press process.
(2000)The objective of this project was to develop a suitable procedure for the design, control and optimisation of the Tubular Filter Press. To this end, the following objectives were defined for this study: • To extend or ... -
Modelling of turbulent cross-flow microfiltration of particulate suspensions.
(1991)No abstract available. -
Modelling the distribution of micro-nutrient metals in the anaerobic digestion for fischer-tropsch reaction water.
(2017)Sasol, one of South Africa’s largest petrochemical producers; derives water from the Fischer Tropsch process and is referred to as Fischer-Tropsch Reaction Water (FTRW). FTRW has high hydrocarbon content and a very low ... -
Modelling the effects of textile dyestuffs on the performance of a municipal wastewater treatment works.
(2006)No abstract available. -
Modification and commissioning of a static high pressure apparatus and phase equilibria measurements for fluorinated hydrocarbons.
(2010)Modifications were undertaken to a static high pressure vapour-liquid equilibrium (VLE) apparatus described by Naidoo [2004]. The alterations were made to improve the sample analysis technique. These modifications included ... -
Modification, reconstruction and commissioning of a vapour recirculation apparatus for high-pressure low-temperature vapour-liquid equilibrium measurements.
(2010)The vapour recirculation apparatus of Moodley [2002] was modified, reconstructed, and commissioned in order to be used in the acquisition of high-pressure vapour-liquid equilibrium (HPVLE) data at low temperatures. The ... -
Molecular simulation of vapour-liquid-liquid-equilibrium.
(2008)Phase equilibrium data is vital for designing chemical separation equipment. Traditionally, such data is obtained through laboratory experiments by sampling and analysing each phase of an equilibrated chemical mixture. An ... -
Molecular targeting of refrigerant mixtures.
(2014)Refrigeration units, besides common household refrigerators and air conditioning systems, are necessary components for the successful operation of many industrial processes in the chemical, petrochemical, pharmaceutical ... -
Monoethanolamine : suitability as an extractive solvent.
(2000)Separation processes are fundamental to all chemical engineering industries. Solvent separation, either liquid-liquid extraction or extractive distillation, is a specialised segment of separation processes. Solvents can ... -
Monte Carlo simulations of systems of light alcohols + water + n-dodecane and water solubility and structures in polytetrafluoroethylene.
(2011)Polytetrafluoroethylene (Teflon®) is encountered in many environments – frying pans, clothing, osmotic distillation membranes, to name a few – yet the solubility and clustering behaviour of water with this material was ... -
Multipurpose separation and purification facility.
(2001)A waste acid stream is being produced by a local petrochemical company (SASOL) at a rate of 10 000 -12 000 tons per annum and contains approximately 44-mole % butyric acid, 20 % isobutyric acid and 10 % valeric acid. ... -
Municipal wastewater characterization : application of denitrification batch tests.
(1999)The biological treatment of wastewater has evolved significantly from simple single sludge systems practicing organic carbon removal to ones which now include either nitrification/denitrification (N/DN) and / or phosphorus ... -
Neural network modelling and prediction of the flotation deinking behaviour of complex recycled paper mixes.
(2011)In the absence of any significant legislation, paper recycling in South Africa has grown to a respectable recovery rate of 43% in 2008, driven mainly by the major paper manufacturers. Recently introduced legislation will ... -
Neural network models for leukaemia.
(2009)Artificial neural networks (ANN) can detect complex non-linear relationships between independent and dependent variables. Properly trained ANNs have repeatedly demonstrated superior predictive accuracy to other predictive ... -
Nucleation induced by high frequency sound for the production of sugar refinery seed crystals.
(2016)The crystallisation process is the second oldest unit operation in existence and a sine qua non in the production of crystalline sugar. It comprises two distinct phases viz. nucleation and the growth of the subsequent ... -
Optimal design of a secondary milling circuit for treating chromite-rich UG-2 platinum ores.
(2011)Extraction of platinum group elements (PGE) is a major source of revenue in South Africa and the reserves represent about 75 per cent of world reserves. Most of the remaining Platinum Group Mineral (PGM) reserves are located ... -
Optimal operation of a water distribution network by predictive control using MINLP.
(2004)The objective of this research project is to develop new software tools capable of operational optimisation of existing, large-scale water distribution networks. Since pumping operations represent the main operating cost ... -
The optimisation of pebble grinding.
(2013)Secondary pebble milling is an attractive alternative to using ball-mills. It is of particular interest in older mines where tonnage has been reduced, spare mills are available and savings in operating cost are essential ... -
Optimization of a multi-level steam distribution system by mixed integer non-linear programming.
(2001)The objective of this project is to optimize the SAPREF oil refinery steam distribution in which imbalances between the various levels presently require the venting of steam from the lowest level. The overall steam balance ...