Efficient dilution levels of diluted press liquor in the palm-oil clarification process and the design of an automated control system to maintain
In this study were evaluated eight levels of dilution for liquid coming out of the press (LP) in the palm oil clarification process in a range between 0.8 and 1.4, measured as percentage volume oil / percentage volume water in the diluted press-liquor (LPD). This assessment led to the establish, within the range considered, an optimal dilution of 1.4 (percentage volume oil / percentage volume water), which one in relation to the conventional dilution level of 1.0 (percentage volume oil / percentage volume water), increased the oil recovery efficiency by 50 percent. This value can reduce water consumption in the clarification process in approximately 29 percent, which means almost 10 percent less in total water consumption per ton of palm oil. In general, a lower consumption of water during the oil extraction process means lower sizes in clarifications equipment and larger residence times, as well as a reduction in the generation of effluents. Rheological analysis was conducted on samples taken from LPD, which led to classify the type of fluid as Non-Newtonian-Seudoplastic and analyze the effect of the dilution on the viscosity for the diluted press-liquor. That results was used to design and to evaluate a control system that ensures the appropriate dilution (1.4 percentage volume oil / percentage volume water) during current conditions of processing, which allows a quick separation of oil, an overall increase in the process efficiency and reducing environmental impact by decrease the water consumption and effluents generation.
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Fedepalma
2008
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| Online Access: | https://publicaciones.fedepalma.org/index.php/palmas/article/view/1361 |
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