Browsing Conference Papers by Author "12380687 - Schabort, Cornelis Johannes"
Now showing items 1-16 of 16
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Bio-oil and bio-char production from sunflower hulls
Van der Gryp, Percy; Baumgarten, Ulrich; Marx, Sanette; Schabort, Corneels (ETA-Florence Renewable Energies, 2011)In this paper, the hydrothermal liquefaction of sunflower hulls into biooil and biochar is presented. The main manipulated variables that were studied were biomass load, catalyst type and temperature. The experimental ... -
Catalytic hydroprocessing of ground cottonseeds in a cottonseed oil and 1-octane solvent to produce renewable diesel. (Slide presentation)
Schabort, C.J.; Broodryk, Z.; Venter, R.; Marx, S. (ETA-Florence Renewable Energies, 2017) -
A comparison of batch extracted bio-oil and continuous hydrothermal liquefaction bio-oil using spent coffee grounds as biomass feedstock
Jansen van Rensburg, T.; Schabort, C.J. (EARET, 2018)This study focuses on bio-oil obtained from spent coffee grounds, either by reflux extraction or continuous hydrothermal liquefaction. Spent coffee grounds was chosen as feedstock for this study as it is available around ... -
A comparison of biodiesel purification methods
Schabort, C.J.; Van der Walt, P.J.; Marx, S. (ETA-Florence Renewable Energies, 2013)The purification of biodiesel is of cardinal importance to ensure the final product meets industry standards. This final step in the production stage contributes a large portion of the cost attributed to biodiesel production. ... -
The effect of aqueous phase recirculation during hydrothermal liquefaction of spent coffee grounds
Grobler, J.J.; Schabort, C.J. (EARET, 2018)Batch hydrothermal liquefaction of spent coffee grounds was done in this study. The effect of subsequent diluted aqueous phase recirculation was studied at a constant temperature of 275 °C and residence time of 10 ... -
Enzymatic recovery of water from water hyacinth
Schabort, C.J.; Kühn, M.J.; Marx, S. (ETA-Florence Renewable Energies, 2013)This study sought to assess the viability of utilizing water recovered from a declared aquatic weed, Eichhornia crassipes, commonly known as the water hyacinth, for domestic, industrial and agricultural purposes. Celluclast, ... -
Evaluation of bio-char based products as hydrotreating catalysts for the production of renewable fuel
Venter, R.J.; Booysen, J.G.; Marx, S.; Schabort, C. (2017)Increasing demand for alternative fuel from fossil fuel exists which has led to the development of new technologies for the production of bio-fuels. One such technology involves the hydrotreatment of vegetable oils such ... -
Evaluation of cottonseed oil as co-feedstock for the hydroprocessing of petroleum middle distillates for diesel fuel production
Venter, Roelf; Khethane, Themba; Radebe, Lehlohonono; Mashamaite, Khomotso; Schabort, Corneels; Marx, Sanette (ETA, 2016)Mandatory blending of biodiesel into petroleum diesel came to effect in 2015 in South Africa. The availability of biodiesel to implement this mandate however poses a challenge for local biodiesel producers and petroleum ... -
The evaluation of spent coffee grounds as feedstock for continuous hydrothermal liquefaction
Von Wielligh, J.; Schabort, C.J.; Venter, R.; Marx, S. (EARET, 2018)This study looks at converting a low-value waste in a continuous hydrothermal liquefaction reactor to a high-value biocrude and biochar product. The feedstock chosen for this study was spent coffee grounds (SCG) as spent ... -
Fermentation of lignocellulosic biomass using ultrasonic pretreatment
Schabort, C.J.; Faul, C.; Nagel, M.; Marx, S. (ETA-Florence Renewable Energies, 2014)The potential fermentation of the sugars derived from water hyacinth, sweet sorghum bagasse and amaranth using indirect ultrasonic pretreatment, was investigated. The optimum sugar and ethanol yield for the ultrasonic bath ... -
Fuel ethanol production from sweet sorghum bagasse using microwave irradiation
Marx, S.; Chiyanzu, I.; Ndaba, B.; Schabort, C.J. (ETA-Florence Renewable Energies, 2013)Sweet sorghum is a hardy crop that can be grown on marginal land and can provide both food and energy in an integrated food and energy system. Lignocellulose rich sweet sorghum bagasse (solid left over after starch and ... -
The hydrotreatment of an unsaturated fatty acid vegetable oil to hydrocarbons over Ni/SiO2-Al2O3
Venter, Roelf; Schabort, Corneels; Marx, Sanette (ETA-Florence Renewable Energies, 2015)In this study, sunflower oil was hydrotreated in the presence of a nickel catalyst with the objective to evaluate the effect of reaction parameters on the characteristics of the reaction product. The effect of reaction ... -
In-situ biodiesel production from municipal waste water treatment plant clarifier effluent stream
Schabort, C.; Van Tonder, G.C.; Venter, R.J.; Marx, S. (ETA-Florence Renewable Energies, 2015)The natural occurrence of micro-algal species in water treatment plants introduces many operational problems. If one, however, considers the high lipid, protein and carbohydrate content, micro-algae become attractive as ... -
Thermochemical liquefaction of water hyacinth
Schabort, C.J.; Van Tonder, G.C.; Marx, S. (ETA-Florence Renewable Energies, 2013)The use of non-edible biomass should be investigated as alternatives for biofuel production. Aquatic weeds like water hyacinth (WH) are classified as third generation crops. WH in South Africa is an invasive species that ... -
Ultrasonic assisted biodiesel production
Schabort, C.J.; Marx, S.; Hövener, D. (ETA-Florence Renewable Energies, 2014)One of the biggest hurdles in the production of biodiesel is the high production cost compared to petroleum-derived diesel. Even though the mechanical agitation utilised during biodiesel production is effective, it is ... -
Waste butter and margarine as feedstock for biodiesel production
Schabort, C.J.; Visser, H.P.; Hartzenberg, A.; Venter, R.; Marx, S. (ETA-Florence Renewable Energies, 2012)The resulting bio-waste from butter and margarine factories should be disposed of in an environmentally friendly manner. Currently the bio-waste is either flushed into the municipal sewerage system or moved to landfill ...