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Now showing items 11-20 of 24
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 ...
Separation of lignin from industrial prehydrolysis liquor using a solid acid catalyst
(ETA-Florence Renewable Energies, 2019)
The concept of a biorefinery has been introduced in the pulp and paper industry in order to improve the industry’s profitability and competitiveness by generating new revenues from new products. Prehydrolysis liquor (PHL) ...
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 ...
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. ...
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 ...
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 ...
Preparation of biochar from sunflower husks (Poster)
(ETA-Florence Renewable Energies, 2014)
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 ...