State Key Laboratory of Hollow Fiber Membrane Materials and Processes, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, PR China.
Bioresour Technol. 2013 Jul;139:316-22. doi: 10.1016/j.biortech.2013.04.040. Epub 2013 Apr 19.
An integrated process of catalytic composite membranes (CCMs) and sodium methoxide was developed to produce biodiesel from waste chicken fat. The free fatty acids (FFAs) in the chicken oil were converted to methyl esters by esterification with methanol using a novel sulfonated polyethersulfone (SPES)/PES/non-woven fabric (NWF) CCMs in a flow-through catalytic membrane reactor. The CCM is that the NWF fibers were fully embedded in SPES/PES with a homogeneous and microporous structure. The oil obtained after esterification was carried out by transesterification of sodium methoxide. The results showed that the FFAs conversion obtained by CCMs with the acid capacity of 25.28 mmol (H(+)) was 92.8% at the residence time 258s. The CCMs present a good stability during the continuous running of 500 h. The conversion of transesterification was 98.1% under the optimum conditions. The quality of the biodiesel met the international standards.
采用催化复合膜（CCM）和甲醇钠的集成工艺，从废鸡油中生产生物柴油。在流动催化膜反应器中，使用新型磺化聚醚砜（SPES）/聚醚砜（PES）/无纺纤维（NWF）CCM 将鸡油中的游离脂肪酸（FFAs）与甲醇进行酯化反应转化为甲酯。CCM 是指 NWF 纤维完全嵌入具有均匀和微孔结构的 SPES/PES 中。酯交换反应采用甲醇钠进行。结果表明，在酸容量为 25.28mmol（H(+)）的 CCM 作用下，酯化后得到的 FFAs 转化率在停留时间 258s 时达到 92.8%。在连续运行 500h 期间，CCM 表现出良好的稳定性。在最佳条件下，酯交换转化率为 98.1%。生物柴油的质量符合国际标准。
