School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
Bioresour Technol. 2011 Feb;102(4):3819-26. doi: 10.1016/j.biortech.2010.11.100. Epub 2010 Nov 29.
Fatty acid methyl ester was produced from used vegetable cooking oil using Mg(1-)(x) Zn(1+)(x)O(2) solid catalyst and the performance monitored in terms of ester content obtained. Used vegetable cooking oil was employed to reduce operation cost of biodiesel. The significant operating parameters which affect the overall yield of the process were studied. The highest ester content, 80%, was achieved with the catalyst during 4h 15 min reaction at 188°C with methanol to oil ratio of 9:1 and catalyst loading of 2.55 wt% oil. Also, transesterification of virgin oil gave higher yield with the heterogeneous catalyst and showed high selectivity towards ester production. The used vegetable cooking oil did not require any rigorous pretreatment. Catalyst stability was examined and there was no leaching of the active components, and its performance was as good at the fourth as at the first cycle.
脂肪酸甲酯由废弃食用油采用 Mg(1-)(x) Zn(1+)(x)O(2) 固体催化剂生产，并根据获得的酯含量监测其性能。废弃食用油的使用降低了生物柴油的运营成本。研究了影响工艺总收率的重要操作参数。在 188°C 下，甲醇与油的比例为 9:1，催化剂用量为 2.55wt%油，反应 4h15min 时，催化剂的酯含量最高，达到 80%。此外，用非均相催化剂进行的 virgin oil 酯交换反应具有更高的收率，并且对酯的生成具有很高的选择性。废弃食用油无需进行任何严格的预处理。对催化剂的稳定性进行了考察，没有活性成分的浸出，其性能在第四周期与第一周期一样好。
