Výsledky vyhledávání - "Roelf Venter"

Biofuels from spent coffee grounds: comparison of processing routes

Autor: Sanette Marx, Chantelle Truter, Roelf Venter, Jaco Louw, Sanjib Kumar Karmee

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) of the SCG, in water as a so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f12f71951f249dcbe7c63e84023a2695
https://hdl.handle.net/10394/35430

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Upgrading of the aqueous product stream from hydrothermal liquefaction: Simultaneous removal of minerals and phenolic components using waste-derived hydrochar

Autor: Roelf Venter, Sanette Marx, Amoné Louw, Christine T. Dewah

Publikováno v: Biomass and Bioenergy. 151:106170

We investigated the co-adsorption of AAEM and phenolic components onto hydrochar prepared from the organic fraction of MSW. HCl washing of the char removed more AAEM (up to 1 g L−1) than phenols from the hydrochar and improved the oxygen content fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::839d57662b8217c29395afad5c0609e2
https://doi.org/10.1016/j.biombioe.2021.106170

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Effect of biomass feedstock composition on biochar properties produced through hydrothermal liquefaction

Autor: Sanette Marx, D. Bartlett, Roelf Venter

The effect that 6 different biomass feedstocks have on biochar was investigated. The biochar was produced through hydrothermal liquefaction at temperatures of 260˚C and 300˚C. The effect of temperature was also investigated. It was discovered that

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5a8c9e85da1035929806d1acafd0e7f
https://www.eares.org/siteadmin/upload/7104EAP1118263.pdf

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The evaluation of spent coffee grounds as feedstock for continuous hydrothermal liquefaction

Autor: Roelf Venter, Sanette Marx, J. Von Wielligh, C.J. Schabort

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 coffee grounds is a readily a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d64340309f017f151db63896c79ae6e
https://hdl.handle.net/10394/34212

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Evaluation of Waste Process Grease as Feedstock for Biodiesel Production

Autor: Roelf Venter, Sanette Marx

Publikováno v: Waste and Biomass Valorization. 5:75-86

Awareness of the depletion of fossil energy reserves, the rising demand for energy in the world and the problems associated with the burning of fossil fuel encourage researchers to find alternative energy sources, such as biodiesel. The use of inedib

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f5cc2f53a9ae007cb1fa8f563e84be8d
https://doi.org/10.1007/s12649-013-9218-y

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Biodiesel production from butter factory effluent

Autor: C.J. Schabort, Sanette Marx, Hennie Visser, Roelf Venter

Publikováno v: African Journal of Biotechnology; Vol 13, No 7 (2014); 897-904

The increase in energy demand coupled with the depletion of fossil fuels has increased the need for renewable and sustainable energy sources. Butter waste effluent was identified as a possible feedstock for biodiesel. The effects of the temperature,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92b5f75142c5b5a81968a6fb8409d734
https://www.ajol.info/index.php/ajb/article/view/109336

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