Browsing Chemical Engineering by Title
Now showing items 65-84 of 281
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The development of a three-phase filtration cell
(2010)The chemical and process industries rely largely on filtration processes to separate solid-liquid process -
The development of a weighted directed graph model for dynamic systems and application of Dijkstra’s algorithm to solve optimal control problems.
(2017)Optimal control problems are frequently encountered in chemical engineering process control applications as a result of the drive for more regulatory compliant, efficient and economical operation of chemical processes. ... -
The development of an experimental technique for UG-2 ore flotation.
(2013)Production of platinum and associated metals is a major source of revenue for South Africa. Significant losses occur in the concentrating stage (10 to 15 per cent) and this research is focused on optimising platinum ... -
Development of an improved group contribution method for the prediction of vapour pressures of organic compounds.
(2007)Vapour pressure is an important property in the chemical and engineering industries. There are -
Development of Coordinated Methodologies for Modeling CO2-Containing Systems in Petroleum Industry.
(2018)Clathrate hydrates formation in natural gas processing facilities or transportation pipelines may lead to process and/or safety hazards. On the other hand, a number of applications are suggested on the basis of promoting ... -
Development of novel apparatus for vapour-liquid equilibrium measurements at moderate pressures.
(2006)In this work, a novel experimental apparatus has been designed, constructed and commissioned for the measurement of VLE at pressures up to 750 kPa and temperatures up to 600 K. The project undertaken represents a complete ... -
Dispersion in slowly moving fluids.
(1970)This work is concerned with the characterization of slowly moving fluids and was carried out on the flow of water through a narrow sedimentation tank. Dispersion in the type of flow structure involved is caused mainly by ... -
Dry beneficiation of coal using an air dense-medium fluidised bed separator
(2010)The mining of coal in arid regions has led to calls for research in to the field of dry beneficiation, -
Drying and pasteurisation of vip latrine faecal sludge using a bench scale medium infrared machine.
(2017)The main challenge with Ventilated Improved Pit (VIP) latrines is that they eventually fill up. Solutions therefore have to be sought with the common practice being to cover up the hole and dig a new pit. This however is ... -
Dynamic modelling and optimal control of sugar crystallisation in a multi-compartment continuous vacuum pan.
(2002)The objective of this work was to determine the operating conditions which would maximise the crystallisation performance of continuous vacuum pans used in the sugar industry. The specific application investigated in detail ... -
Dynamic modelling of anaerobic digestion of Fischer-Tropsch reaction water.
(2013)Fischer-Tropsch Reaction Water (FTRW) is a high organic strength wastewater produced as a by-product in Sasol’s Fischer-Tropsch Reactors. Typically it has an organic load of 18000 mgCOD/L and is highly acidic with a pH ... -
Economic recovery of biobutanol-a platform chemical for the sugarcane biorefinery.
(2018)In recent years, the South African sugar industry has faced challenges, such as drought, low prices and labour issues that have impacted negatively on the perceived sustainability. The adoption of the sugarcane biorefinery ... -
The effect of particle properties on fluidized bed hydrodynamics and entrainment.
(2007)This study focuses on the effect that particle properties (size, density and shape) have on fluidized bed hydrodynamics and entrainment rate. The experimental work was carried out using two Plexiglas columns having ... -
The effect of solid micro particles on mass transfer in agitated dispersions.
(2008)The industrial application of gas-liquid contactors has made effective design and optimisation of these processes a very important topic. In order to sustain a competitive advantage, rate limiting steps must be clearly ... -
An environmental life cycle assessment of the provision of recycled water in Durban.
(2006)This dissertation investigated the questions of sustainable development, in the context of water and sanitation provision, for the eThekwini Municipality. The Durban Water Recycling (DWR) plant, run by Veolia Water, was ... -
Environnmental life cycle assessment of potable water production.
(2001)This study investigates and compares the environmental burdens of two different methods for producing potable water by using the environmental life cycle assessment (LCA). The first method, for the production of potable ... -
The evaluation of ozone technology to reduce the concentration of polychlorinated biphenyls (PCBs) in contaminated soil.
(2011)Polychlorinated Biphenyls (PCBs) are hazardous and toxic chemicals to both humans and animals. In the late 1960’s PCBs were discovered to be a harmful pollutant which could cause environmental contamination due to its ... -
Evaluation of paper substrates for microfluidic application in medical diagnostic kits.
(2018)Recent studies in the biomedical field have shown the use of paper in microfluidic analytical devices. However, no studies have been undertaken to ascertain what type(s) of paper substrates are ideal for such microfluidic ... -
The evaluation of the fluidised bed combustion performance of South African coals in the presence of sorbents.
(2007)The Fluidised Bed Combustion (FBC) technology has been widely used internationally for power generation. This technology has good fuel flexibility and reduced S02 emissions with dry sorbent (Limestone or Dolomite) addition. ... -
Exploring the effectiveness of separation of pith/fibre fractions in sugarcane bagasse briquetting.
(2019)Abstract available in the PDF.