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  • Title: Biodiesel production using cation-exchange resin as heterogeneous catalyst.
    Author: Feng Y, He B, Cao Y, Li J, Liu M, Yan F, Liang X.
    Journal: Bioresour Technol; 2010 Mar; 101(5):1518-21. PubMed ID: 19699089.
    Abstract:
    Three types of cation-exchange resins (NKC-9, 001 x 7 and D61) as solid acid catalysts were employed to prepare biodiesel from acidified oils generated from waste frying oils. The results show that the catalytic activity of NKC-9 was higher than that of 001 x 7 and D61. The conversion of the esterification by NKC-9 increased with increasing in the amount of catalyst, reaction temperature and time and methanol/oil molar ratio. The maximal conversion of reaction is approximately 90.0%. Furthermore, NKC-9 resin exhibits good reusability. Gas chromatography-mass spectrometry analysis reveals that the production is simplex and mainly composed of C16:0 (palmitic), C18:2 (linoleic), and C18:1 (oleic) acids of methyl ester, respectively.
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