Key Lab of Hollow Fiber Membrane Material and Processes of Ministry of Education, School of Material Science and Engineering, Tianjin Polytechnical University, Tianjin 300160, PR China.
Bioresour Technol. 2010 Mar;101(5):1518-21. doi: 10.1016/j.biortech.2009.07.084. Epub 2009 Aug 20.
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.
三种类型的阳离子交换树脂（NKC-9、001 x 7 和 D61）作为固体酸催化剂，用于从废煎炸油产生的酸化油中制备生物柴油。结果表明，NKC-9 的催化活性高于 001 x 7 和 D61。NKC-9 酯化转化率随着催化剂用量、反应温度、时间和甲醇/油摩尔比的增加而增加。反应的最大转化率约为 90.0%。此外，NKC-9 树脂表现出良好的可重复使用性。气相色谱-质谱分析表明，产物简单，主要由甲酯的 C16:0（棕榈酸）、C18:2（亚油酸）和 C18:1（油酸）组成。
