Academic Journal
Hydrogel-based water removal in biodiesel–diesel blends: efficacy and impact on metal contamination.
| Τίτλος: | Hydrogel-based water removal in biodiesel–diesel blends: efficacy and impact on metal contamination. |
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| Συγγραφείς: | Pratiwi, Fatimah Tresna1 (AUTHOR), Romelan1 (AUTHOR), Pamungkas, Ade1 (AUTHOR), Matheofani2 (AUTHOR), Heryana, Yayan1 (AUTHOR), Solikhah, Maharani Dewi1 (AUTHOR) maha003@brin.go.id |
| Πηγή: | Canadian Journal of Chemistry. 2026, Vol. 104 Issue 1, p22-36. 15p. |
| Θεματικοί όροι: | *Hydrogels, *Biodiesel fuels, *Ion exchange (Chemistry), *Water purification, *Fuel quality, *Heavy metal toxicology, *Acrylamide, *Acrylates |
| Περίληψη: | After over a decade of using biodiesel blends, the challenge of its hygroscopic nature remains unresolved. Biodiesel's chemical structure leads to significant water absorption, particularly during storage and distribution. This study explored water reduction in B30 biodiesel blends using two hydrogels: acrylate- and acrylamide-based, containing potassium (H1) and sodium (H2). A B30 blend with 600 ± 50 ppm water was filtered through a fixed-bed column with hydrogel at a flow rate of 10 L/h for 5 h per cycle. The results showed that both hydrogels effectively reduced water content; H1 decreased it to 155 ppm, while H2 reduced it to 187 ppm in the first cycle. Over seven cycles, H2 outperformed H1 with total adsorption capacities of 0.756 and 0.645 g H2O/g hydrogel, respectively. However, the adsorption process altered fuel metal content, indicating metal transfer from the hydrogel to the fuel. The concentrations of Ca, K, Mg, and Na increased after 30 min of contact with the hydrogel, with Na showing the most significant rise reaching up to 1.47 times the concentration in the feed. In contrast, the concentration of Al decreased, indicating that ion exchange occurred during the interaction between the fuel and the hydrogel. [ABSTRACT FROM AUTHOR] |
| Βάση Δεδομένων: | Academic Search Index |
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