Browsing Conference Papers - Potchefstroom Campus by Author "Marx, Sanette"
Now showing items 1-20 of 23
-
Bio-butanol fermentation using clostridium acetobutylicum and clostridium tetanomorphum in modified bioreactor flasks
(ETA-Florence Renewable Energies, 2015)An alternative new generation biofuel to bio-ethanol has attracted researchers to investigate various approaches for optimization of traditional ABE fermentation to enable bio-butanol to be produced cheaper at an industrial ... -
Bio-oil and bio-char production from sunflower hulls
(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 ... -
Co-digestion of sweet sorghum bagasse with scientific and crude glycerols for electricity generation
(PSRC, 2014)With the global fossil fuel supplies dwindling and the alarming increase of carbon dioxide in the atmosphere, the need for alternative, clean energies, from carbon neutral sources is pressing. This impetus advanced research ... -
Comparative adaptation of B. subtilis and P. aeruginosa in diesel supplemented medium and impact on biodegradation potential
(PSRC, 2014)The degree of diesel blending is likely to influence its toxicity as well as the susceptibility and speed of biodegradation. It is therefore imperative to identify strains that can degrade diesel blend in record time, such ... -
Conceptual cost of an integrated micro-algal biomass-to-liquids facility
(ETA-Florence Renewable Energies, 2011)An orderofmagnitude cost estimate was conducted on a new integrated biomasstoliquids (BtL) process that produces 2.6 million litres of biodiesel per year from microalgal biomass harvested from the Hartbeespoort Dam. ... -
Conceptual design of an integrated micro-algal biomass-to-liquids process
(ETA-Florence Renewable Energies, 2011)A new integrated biomasstoliquids conceptual process was developed to produce 2.6 million litres of biodiesel per year from harvested microalgal biomass. Three unconventional harvesting methods, a thermochemical ... -
Effect of operating parameters on hydrothermal liquefaction of sugarcane bagasse
(EARET, 2018)Hydrothermal liquefaction (HTL) is a thermochemical process that produces various products from lignocellulosic feedstocks. In this study sugar cane bagasse was used as feedstock for HTL. Experiments were carried out ... -
Effect of temperature and cathode material on power production in an earthenware microbial fuel cell
(EARET, 2018)This study investigates the performance of microbial fuel cells (MFCs) fed with municipal sewage water considering parameters such as temperature and cathode materials. Single chamber ceramic MFCs with the cathode exposed ... -
Enhancement of bio-methane production by lignocellulose substrates
(ETA-Florence Renewable Energies, 2015)In this study, water hyacinth, sweet sorghum bagasse and amaranth stems were used in a pig manure matrix to produce biogas with a high methane content. The anaerobic digestion was monitored over a period of 40 days, after ... -
Evaluation of cottonseed oil as co-feedstock for the hydroprocessing of petroleum middle distillates for diesel fuel production
(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 ... -
Feasibility of cultivating Hartbeespoort Dam microalgae
(ETA-Florence Renewable Energies, 2011)Three cultivation experiments were conducted to grow microalgae in three consecutively scaled-up laboratory systems, which consisted of one, five and 135-litre bioreactors. The highest productivity achieved under optimum ... -
Four novel methods for the harvesting of micro-algal biomass
(ETA-Florence Renewable Energies, 2011)The harvesting of micro-algal biomass is one of the most inefficient and costly steps in the whole biomass-to-liquids (BtL) value chain. Harvesting costs may contribute between 20–30% of the total cost of microalgal BtL ... -
The hydrotreatment of an unsaturated fatty acid vegetable oil to hydrocarbons over Ni/SiO2-Al2O3
(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 sunflower seeds using liquefaction
(ETA-Florence Renewable Energies, 2015)One of the most expensive steps in the bio-diesel value chain is the extraction of oil from the seeds. Simultaneous extraction and transesterification will lower the overall capital costs of the process while enhancing ... -
Preparation of biochar from sunflower husks (Poster)
(ETA-Florence Renewable Energies, 2014) -
Preparation of biochars for co-gasification from sweet sorghum bagasse
(ETA-Florence Renewable Energies, 2015)Biochar is a solid product obtained through torrefaction, liquefaction or pyrolysis of organic material. It can be used for soil amendment, activated carbon for sequestration, or as bio-coal for gasification or co-gasification. ... -
Production of bio-degradable polyurethane foam from sugarcane bagasse and biodiesel-derived crude glycerine
(ETA-Florence Renewable Energies, 2015)As the threat of the depletion of fossil based fuels becomes more of a reality, there is a need to find alternative carbon sources for the production of a wide range of chemicals, polymers and plastics. One plastic that ... -
Production of ethanol from sweetstem sorghum and tropical sugar beet for a rural community
(ETA-Florence Renewable Energies, 2011)Rural communities in the North West Province of South Africa are among the poorest in the world with an average income of less than ZAR 8.75 (EU 0.875) per day. The South African government has committed itself to upliftment ... -
Production of value-added products from biodiesel derived crude glycerol
(ETA-Florence Renewable Energies, 2015)Crude glycerol, a by-product of biodiesel production which contain impurities such as methanol, triglycerides and catalysts, would represent a huge challenge to the environment if disposed. Thus the best opportunity is to ...
