| Soybean biodiesel methyl esters, free glycerin and acid number quantification by (1) H nuclear magnetic resonance spectroscopy. | |
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MedLine Citation:
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PMID: 23225640 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Production of alternative fuels, such as biodiesel, from transesterification of vegetable oil driven by heterogeneous catalysts is a promising alternative to fossil diesel. However, achieving a successful substitution for a new renewable fuel depends on several quality parameters. (1) H NMR spectroscopy was used to determine the amount of methyl esters, free glycerin and acid number in the transesterification of soybean oil with methanol in the presence of hydrotalcite-type catalyst to produce biodiesel. Reaction parameters, such as temperature and time, were used to evaluate soybean oil methyl esters rate conversion. Temperatures of 100 to 180 °C and times of 20 to 240 min were tested on a 1 : 12 molar ratio soybean oil/methanol reaction. At 180 °C/240 min conditions, a rate of 94.5 wt% of methyl esters was obtained, where free glycerin and free fatty acids were not detected. Copyright © 2012 John Wiley & Sons, Ltd. |
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Authors:
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Natasha Coral; Elizabeth Rodrigues; Victor Rumjanek; José Roberto Zamian; Geraldo Narciso da Rocha Filho; Carlos Emmerson Ferreira da Costa |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-12-7 |
Journal Detail:
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Title: Magnetic resonance in chemistry : MRC Volume: - ISSN: 1097-458X ISO Abbreviation: Magn Reson Chem Publication Date: 2012 Dec |
Date Detail:
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Created Date: 2012-12-10 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9882600 Medline TA: Magn Reson Chem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 John Wiley & Sons, Ltd. |
Affiliation:
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LCO, Laboratório de Catálise e Oleoquímica, Faculdade de Química, UFPA, Rua Augusto Corrêa s/n, Guamá, CEP: 66075-110, Belém, Pará, Brazil. |
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