燃料化学学报2018，Vol.46Issue(1)：59-66,8.
原位共沉淀法制备NiMg(Al)O/γ-Al2O3催化剂及其酯交换性能
In situ co-precipitation of NiMg( Al) O on γ-Al2 O3 and its catalytic performance in the transesterification
摘要
Abstract
NiMgAl-LDHs/γ-Al2 O3 was first synthesized by in-situ co-precipitation method with γ-Al2 O3 as support, which was further transformed to the NiMg ( Al ) O/γ-Al2 O3 catalyst through calcination. The NiMg ( Al) O/γ-Al2 O3 catalyst was characterized by TG-DTG, XRD, SEM, N2 physisorption, FT-IR and CO2-TPD and its performance in the transesterification was investigated, for the production of biodiesel with microalgae oil and methanol as raw materials. The results show that NiMgAl-LDHs and NiMg( Al) O are successfully developed on the surface and pores ofγ-Al2 O3 with high binding strength. The NiMg( Al) O/γ-Al2 O3 catalyst exhibits high activity in transesterification;with a methanol/oil molar ratio of 12:1 , the yield of biodiesel oil reaches 95％after reaction for 3 h. Moreover, the yield of biodiesel is still above 82％ after using seven times.关键词
生物柴油/γ-Al2O3/酯交换/水滑石Key words
biodiesel/γ-Al2 O3/transesterification/hydrotalcite分类
能源科技引用本文复制引用
陈颖,刘天聪,高彦华,梁宇宁..原位共沉淀法制备NiMg(Al)O/γ-Al2O3催化剂及其酯交换性能[J].燃料化学学报,2018,46(1):59-66,8.基金项目
The project was supported by the National Natural Science Foundation of China (50476091).国家自然科学基金(50476091)资助 （50476091）
