Synthesis of ordered mesoporous Mg-Al composite oxide-supported potassium catalysts for biodiesel production
Synthesis of ordered mesoporous Mg-Al composite oxide-supported potassium catalysts for biodiesel production
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用于生物柴油生产的有序介孔镁铝复合氧化物负载钾催化剂的合成
DOI：
10.1016/j.catcom.2018.08.014
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发表时间：
2018
影响因子：
3.7
通讯作者：
Li Ruifeng
中科院分区：
文献类型：
--
作者：
Pan Dahai;Liu Tonglian;Yu Feng;Chen Shuwei;Yan Xiaoliang;Shi Xiufeng;Fan Binbin;Li Ruifeng
制备了有序介孔mg单键al复合氧化物负载K催化剂（xK/OMMA），并将其用于大豆油与甲醇的酯交换反应。与使用有序介孔氧化铝或介孔镁单键混合氧化物作为载体制备的基于K负载的催化剂相比，制备的K/OMMA具有更高的大豆油转化率（高达97.0%），对脂肪酸甲酯的选择性为99.8%，并且具有理想的可重复使用性。xk /OMMA优越的催化性能与载体OMMA优良的结构和表面特性有关，从而有利于催化活性位点的产生及其高度均匀的分散。
Ordered mesoporous Mgsingle bondAl composite oxide-supported K catalysts (xK/OMMA) were prepared and used for soybean oil transesterification with methanol. The preparedxK/OMMA demonstrated a much higher soybean oil conversion (up to 97.0%) along with a 99.8% selectivity to fatty acid methyl ester and a desirable reusability, compared with K-based catalysts prepared with the same K loading and using ordered mesoporous alumina or mesoporous Mgsingle bondAl mixed oxide as support. The superior catalytic performance ofxK/OMMA is associated with the excellent structural and surface properties of support OMMA, thus benefiting the generation of catalytically active sites and their highly homogenous dispersion.