Browsing Chemical Engineering by Title
Now showing items 195-214 of 281
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Phase equilibrium investigation of the water and acetonitrile solvent with heavy hydrocarbons.
(2006)Thermodynamics plays an important role for separation processes in chemical industries. Phase equilibrium is of special interest in chemical engineering as separation processes such as distillation and extraction involve ... -
Phase equilibrium measurements at low-to-moderate pressures for systems containing n-Hexane, 1-Hexene and n-Methyl-2-pyrrolidone.
(2012)The primary focus of this study is the measurement and modeling of binary and ternary VLE data. The measurements of binary and ternary systems were undertaken on a fully automated dynamic VLE apparatus. The glass dynamic ... -
Phase equilibrium studies of NFM and toluene with heavy hydrocarbons and the conceptual process design of an aromatics recovery unit.
(2017)Distillation and extraction are commonly employed phase separation techniques, and improved efficiency and cost reduction in these large-scale processes are motivating factors behind thermodynamic equilibrium investigations. ... -
Practical on-line model validation for model predictive controllers (MPC)
(2010)A typical petro-chemical or oil-refining plant is known to operate with hundreds if not thousands of control loops. All critical loops are primarily required to operate at their respective optimal levels in order for the ... -
A pre-screening tool for the anaerobic treatment of complex industrial effluents and wastewaters.
(2003)The objective of this investigation was to assess the potential of a titration bioassay i.e.: The Methanogenic Activity and Inhibition Analyser (MAlA), to determine the biodegradability of complex industrial effluents ... -
Precipitation and valorisation of lignin obtained from South African kraft mill black liquor.
(2016)Abstract available in PDF file. -
The prediction of multicomponent ion exchange equilibria with particular reference to the system involved in the recovery of uranium.
(1976)The problem of predicting the general ion exchange equilibria pertaining to systems of industrial significance is generated by the multicomponent nature of such systems and the nonidealities which may be present in both ... -
Prediction of the physical properties of pure chemical compounds through different computational methods.
(2014)Liquid thermal conductivities, viscosities, thermal decomposition temperatures, electrical conductivities, normal boiling point temperatures, sublimation and vaporization enthalpies, saturated liquid speeds of sound, ... -
The predictive modelling of the performance of a crude oil fractionator in terms of gas chromotographic characterization.
(1973)No abstract available. -
Predictive solvent and anti-solvent selection method for pharmaceutical and biological products and intermediates.
(2017)Abstract available in pdf. -
Preliminary investigation into the use of gas hydrate technology for the treatment of vinasse.
(2017)Abstract available in PDF file. -
Production and optimisation of biodiesel using heterogeneous catalyst.
(2020)In this work, it is required to investigate the production and optimisation of biodiesel using heterogeneous catalyst to determine whether the resulting biodiesel may be utilised in an existing diesel engine without ... -
Production of activated carbon from South African sugar-cane bagasse.
(2003)The South African sugar industry generates excessive amounts of sugar cane bagasse (~ 25 wt% of feed) as a byproduct during the extraction of sugar juice from cane. Although bagasse is extensively consumed in various ... -
Production of activated carbon from South African sugarcane bagasse.
(2005)South Africa has an annual sugarcane milling capacity of about 22 million tonnes on average producing about 3.3 million tonnes of dry bagasse, of which one third is surplus to factory requirements. Currently surplus ... -
The production of furfural from sunflower husks using the s-suprayield process.
(2010)Since the early 1920s, when furfural was first produced, several other processing routes have been developed but none have been able to produce yields comparable to those obtained in the standard TAPPI procedure for xylan ... -
Production of xylanase enzyme from sulphite liquor using an airlift reactor with internal loop.
(2009)No abstract available. -
Purification of nitrogen trifluoride (nf3) via physical separation.
(2020)Abstract available in the PDF. -
Pyrolysis of chlorinated hydrocarbons using induction heating.
(2004)Chemical and allied industries produce significant quantities of chlorinated wastes each year. Thermal treatnent of these chlorinated wastes has a long and controversial history. The most common and contentious method of ... -
Pyrolysis of chlorinated organic chemicals.
(2001)At present, South Africa has inadequate technology to destroy its hazardous waste, with approximately 18000 litres of chlorinated hazardous waste stored in this country. Approximately 800 tons of banned or obsolete ... -
Pyrolysis-gas chromatography/mass spectrometry study of chromophores in dissolving wood pulp.
(2018)Dissolving wood pulp (DWP) is bleached wood pulp that contains high cellulose content, typically >95%. The bleaching is done to remove remnants of lignin and hemicelluloses that are not necessary for the final DWP. The ...