Well-dispersive K2O-KCl alkaline catalyst derived from waste banana peel for biodiesel synthesis

作者:Fan, Mingming; Wu, Hao; Shi, Min; Zhang, Pingbo*; Jiang, Pingping
来源:Green Energy & Environment, 2019, 4(3): 322-327.
DOI:10.1016/j.gee.2018.09.004

摘要

In this work, a novel alkaline catalyst was synthesized by an economical and effective method of roasting waste banana peel. From XRD, FTIR, SEM, EDS, TGA and CO2-TPD characterization, it was proved that the calcined banana peel catalyst showed the strong alkalinity and well dispersity in microstructure, and K2O-KCl as the main active contents. The calcined banana peel catalyst showed better catalytic performance than the catalysts by physical mixing of K2O and KCl, which was due to good dispersibility of K2O-KCl formed during decomposing of carbon fiber by calcination of banana peel. Furthermore, the calcined banana peel catalyst also performed well in both water-resistant ability and recyclability, indicating their potential for biodiesel production from an efficient, robust, and low-cost catalyst.