Reactor Comparison for the Esterification of Fatty Acids from Waste Cooking Oil
Esterification of the fatty acids contained in waste cooking oil with glycerol, a reaction involving immiscible and viscous reactants, was achieved in two pilot‐scale continuous pulsed reactors: the oscillatory baffled reactor and the helix reactor. In both reactors, with or without baffles, the rea...
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| Vydáno v: | Chemical engineering & technology Ročník 38; číslo 12; s. 2161 - 2169 |
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| Hlavní autoři: | , , , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
Weinheim
WILEY-VCH Verlag
01.12.2015
WILEY‐VCH Verlag |
| Témata: | |
| ISSN: | 0930-7516, 1521-4125 |
| On-line přístup: | Získat plný text |
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| Shrnutí: | Esterification of the fatty acids contained in waste cooking oil with glycerol, a reaction involving immiscible and viscous reactants, was achieved in two pilot‐scale continuous pulsed reactors: the oscillatory baffled reactor and the helix reactor. In both reactors, with or without baffles, the reaction reaches its thermodynamic equilibrium at lower temperatures, shorter residence times and with higher selectivities than those reported in the literature. This equilibrium is then shifted by an increase in the excess of glycerol, or by removing water from the reactive media by an intermediary decantation or by the use of dodecylbenzene sulfonic acid, a surfactant catalyst. Further investigations would be required to increase the conversions without decreasing the selectivities, by increasing the initial amount of free fatty acids.
The esterification reaction of the fatty acids contained in waste cooking oil (40 % of free fatty acids) with glycerol was carried out by two continuous and intensified technologies: an oscillatory baffled reactor and a pulsed helix reactor. Good conversions and selectivities were obtained at lower temperatures and shorter residence times than in conventional reactors. |
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| Bibliografie: | French Government INP Toulouse European Union ArticleID:CEAT201500138 Réseau Franco-Néerlandais TNO Delft région Midi-Pyrénées ark:/67375/WNG-LQ9X5D8C-D istex:0F3FFF2273F70493FE5675DF79C23D36007565F6 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 0930-7516 1521-4125 |
| DOI: | 10.1002/ceat.201500138 |