Department of Process Engineering
Collections in this community
Recent Submissions
-
Scalable methanol‑free production of recombinant glucuronoyl esterase in Pichia pastoris
(BMC (part of Springer Nature), 2019)Objective: Glucuronoyl esterase (GE) is an emerging enzyme that improves fractionation of lignin-carbohydrate complexes. However, the commercial availability of GE is limited, which hinders the research of GE-based ... -
Desorption of isobutyl acetate into air as a low-cost alternative system for the measurement of liquid phase mass transfer coefficients
(AIDIC, 2018)ENGLISH ABSTRACT: A study was conducted in enhancing the measurement of volumetric liquid phase mass transfer coefficients (K˪a) in packed columns, by re-considering the application of conventional desorption and absorption ... -
Hydrodynamics of a packed column operated under supercritical conditions
(AIDIC, 2018)ENGLISH ABSTRACT: There is a lack of hydrodynamic data under supercritical conditions, in particular in systems that attempt to isolate hydrodynamics from mass transfer. This paper presents hydrodynamic data focusing on ... -
The effect of fluid properties and packing size on the hydrodynamics of packed columns
(AIDIC, 2018)ENGLISH ABSTRACT: The effect of fluid physical properties on the hydrodynamic behaviour in a packed column with 1.5” and 2.5” fourth generation random packing was investigated by measuring the pressure drop and liquid ... -
Expanding the semantic range to enable meaningful real-world application in chemical engineering
(HESA, 2019)ENGLISH ABSTRACT: Legitimation Code Theory has proven to be useful in analysing the relationship between theory and practice. Semantic gravity can be used to illustrate teaching and learning processes that move between ... -
The high-temperature pressure oxidation of a Witwatersrand pyrite concentrate
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The oxidation of the pyrite present in gold and uranium ores is often desirable, to either liberate the gold present in the pyrite, or to generate iron(III) and acid for uranium extraction. The current ... -
Photo-fermentative treatment of wastewaters: surveying local sources and examining their treatment by Rhodopseudomonas palustris
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Owing to rapid industrialization, environmental pollution in the form of industrial wastewater is a growing concern. Additionally, global energy requirements are mostly dependent on fossil fuels and at ... -
Mechanistic and kinetic aspects of furfural degradation in dilute acidic media
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Furfural is a renewable platform chemical produced from lignocellulosic biomass. Many chemicals are derived from furfural including furfuryl alcohol, cosmetic ingredients & fragrances, flavour ingredients, ... -
Recovery of organic solvents from dewaxed oil mixtures using organic solvent nanofiltration technology
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Solvents are valuable chemicals, which are conventionally recovered through energy intensive processes such as distillation. In lube oil dewaxing processes, four times more solvent relative to solute is ... -
Modelling of enzymatic protein hydrolysis
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Enzymatic hydrolysis is a method which is used to produce nutritional supplements, aquaculture feed, plant fertilisers and food ingredients. Mathematical modelling of enzymatic protein hydrolysis is a ... -
Atmospheric acid leaching of oxidised and mixed copper cobalt ores mined in the Democratic Republic of the Congo
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Kamoto-Oliveira-Virgule (KOV) located in the Democratic Republic of the Congo, operates its mining operation on the north-western boundary of the approximately 350km long Congolese copper belt. This deposit ... -
Life cycle assessment of anaerobic digestion of cattle manure
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The pressure on energy resources worldwide combined with the awareness of the major impact industrial processes have on the environment, triggers the development of alternative energy sources and methods ... -
Pyrolysis of waste polypropylene plastics for energy recovery: Investigation of operating parameters and process development at pilot scale
(2019-04)ENGLISH ABSTRACT: Polypropylene (PP) has been identified as the second most abundant plastic waste in landfills globally and the fastest growing plastic waste in South Africa. The increasing numbers have been attributed ... -
Process optimization and technoeconomics assessment of nematode biopesticide production
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Please refer to full text for abstract -
Techno-economic and life cycle analyses for comparison of biorefinery scenarios for the production of succinic acid, itaconic acid and polyhydroxybutyrate (PHB) from sugarcane lignocelluloses
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The pressure on energy resources worldwide combined with the awareness of the major impact industrial processes have on the environment, triggers the development of alternative energy sources and methods ... -
Catalytic pyrolysis conversion of lignin from different sources to phenols
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Lignin is a by-product of the paper and pulp industry and the emerging cellulosic ethanol production technologies. Both industries only considered lignin a source of energy to complement the energy needs ... -
Development of an environmentally friendly lithium-ion battery recycling process
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The main aim of this work was to evaluate the technical feasibility of using organic acids as lixiviants for Co, Li and Ni recovery from lithium-ion batteries (LIBs) and to recover the metals from the ... -
Evaluation and comparison of the ability of three industrially relevant adsorbents to remove alcohol contaminants from an alkane solvent
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Adsorption has been used successfully in many industries and has replaced the use of processes such as distillation in some cases. The adsorption process is influenced by many factors and its efficiency ... -
Triticale grain fermentation for production of bio ethanol and animal feed
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: High quantity of starch and relative high protein content, compared to other cereal grains, make triticale ideal as a feedstock for production of bioethanol and animal feed. It is mostly planted as feed ... -
Paper industry process wastewater reclamation and potential clarification from paper sludge through integrated bio-energy production
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The paper and pulp industry is one of the major consumers of fresh water and as such produces large quantities of contaminated process water. However, with the recent drought crisis in South Africa, there ...
RSS 1.0