Browsing Faculty of Engineering by Subject "Transesterification"

Now showing items 1-6 of 6

    • Biofuel production from spent coffee grounds via lipase catalysis 

      Karmee, Sanjib Kumar; Swanepoel, Wian; Marx, Sanette (Taylor & Francis, 2018)
      Lipases namely Mucor miehei, Pseudomonas cepacia, Rhizopus delemar, Geotrichum candidum, Candida rugosa, Porcine pancreas-II, Pseudomonas fluorescence, and Candida antarctica lipase-B (Novozyme-435) were employed for ...

    • Biofuels from spent coffee grounds: comparison of processing routes 

      Marx, Sanette; Venter, Roelf; Karmee, Sanjib Kumar; Louw, Jaco; Truter, Chantelle (Taylor & Francis, 2020)
      Bulk fuel was produced from spent coffee grounds (SCG) using different oil extraction and fuel production methods. The highest oil yield (30.2%) and energy efficiency (50%) from continuous hydrothermal liquefaction (CHTL) ...

    • 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. ...

    • Enzymatic biodiesel production from Manilkara Zapota (L.) seed oil 

      Karmee, Sanjib Kumar (Springer, 2017)
      Oil obtained from the seeds of Manilkara zapota (L.) was transesterified with methanol using lipases as biocatalysts. Four commercially available lipases, such as, porcine pancreas, Candida rugosa, Pseudomonas cepacia and ...

    • In-situ biodiesel production from sunflower seeds using liquefaction 

      De la Rey, Jaco; Marx, Sanette; Venter, Roelf (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 ...

    • 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 ...