Biodiesel synthesis and kinetic analysis based on MnCo3/Na silicate as heterogeneous catalyst
| Autor: | Xiang Shen, Xiaochan Zhu, Hui Liu, Dejan Skala, Yanan Zhang, Miodrag Zdujić, Ivana Lukić |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
MnCO3/Na-silicate
Biodiesel food.ingredient Chemistry 020209 energy 02 engineering and technology General Chemistry Transesterification Heterogeneous catalysis 7. Clean energy Soybean oil Autoclave Catalysis transesterification lcsh:Chemistry chemistry.chemical_compound food lcsh:QD1-999 kinetics Yield (chemistry) 0202 electrical engineering electronic engineering information engineering reusability Fatty acid methyl ester Nuclear chemistry |
| Zdroj: | Journal of the Serbian Chemical Society, Vol 83, Iss 3, Pp 345-365 (2018) Journal of the Serbian Chemical Society |
| ISSN: | 1820-7421 0352-5139 |
| Popis: | The MnCO3/Na silicate (Mn/Na/Si mole ratio of 4.65:1:1.65) catalyst in the form of solid particles with diameter of 0.99–1.99 mm was used as a catalyst for transesterification of soybean oil in batch autoclave at different conditions: 388–468 K, methanol-to-oil mole ratio 12:1–30:1, catalyst amount based on the mass of oil 0–12.5 %. The complete triacylglycerols (TAG) conversion and high yield of fatty acid methyl ester (FAME) was obtained after 1 h at 458 K, methanol-to-oil mole ratio 30:1 and 10 % of catalyst. Kinetics of transesterification process was analyzed by three models: the simple first order irreversible reaction rate, as well as two more complex models recently reported in literature. The catalyst reuse in transesterification process was tested and the average values of 99.0 % of TAG conversion and 97.5 % of FAME yield were obtained after 8 consecutive runs. Different techniques were used to characterize fresh and used MnCO3/Na silicate catalyst. The determined amounts of leached Na ( |
| Databáze: | OpenAIRE |
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