| dc.contributor.author | Grobler, J.J. | |
| dc.contributor.author | Schabort, C.J. | |
| dc.date.accessioned | 2020-02-27T11:56:33Z | |
| dc.date.available | 2020-02-27T11:56:33Z | |
| dc.date.issued | 2018 | |
| dc.identifier.citation | Grobler, J.J. & Schabort, C.J. 2018. The effect of aqueous phase recirculation during hydrothermal liquefaction of spent coffee grounds. 10th International Conference on Advances in Science, Engineering, Technology & Healthcare (ASETH-18), 19-20 Nov 2018, Cape Town, South Africa: 254-258. [https://doi.org/10.17758/EARES4.EAP1118260] | en_US |
| dc.identifier.isbn | 978-81-938365-2-1 | |
| dc.identifier.uri | http://hdl.handle.net/10394/34213 | |
| dc.identifier.uri | https://www.eares.org/siteadmin/upload/3919EAP1118260.pdf | |
| dc.identifier.uri | https://doi.org/10.17758/EARES4.EAP1118260 | |
| dc.description.abstract | 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 minutes. Four recirculation reactions were
completed following a control reaction and the results were compared.
It was found that the recirculation of the aqueous phase had increased
the bio-oil mass yield by 51 %. An increase in the organics and
nitrogen concentration was observed in the aqueous phase, while the
total organic carbon decreased due to migration of carbon species to
the bio-oil product phase. The bio-oil retained its high energy content
following the recirculation reactions with a higher heating value of
32.61 MJ/kg. The main component of the bio-oil was identified as C16-
C18 aliphatic acids with long carbon chain hydrocarbons | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | EARET | en_US |
| dc.subject | Aqueous phase recirculation | en_US |
| dc.subject | Batch hydrothermal liquefaction | en_US |
| dc.subject | Spent coffee grounds | en_US |
| dc.title | The effect of aqueous phase recirculation during hydrothermal liquefaction of spent coffee grounds | en_US |
| dc.type | Presentation | en_US |
| dc.contributor.researchID | 25044575 - Grobler, J.J. | |
| dc.contributor.researchID | 12380687 - Schabort, Cornelis Johannes | |
