Preparation of Mesoporous Nanosized KF/CaO-MgO Catalyst and its Application for Biodiesel Production by Transesterification

被引：46
|
作者：
Wang, Yun [1 ]
Hu, Sheng-yang [1 ]
Guan, Yan-ping [1 ]
Wen, Li-bai [1 ]
Han, He-you [1 ]
机构：
[1] Huazhong Agr Univ, Coll Sci, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China
来源：
CATALYSIS LETTERS | 2009年 / 131卷 / 3-4期
基金：
国家高技术研究发展计划(863计划);
关键词：
Nanosized solid-base catalyst; Coprecipitation method; Transesterification reaction; Biodiesel production; SOLID BASE CATALYST; SOYBEAN OIL; CALCIUM-OXIDE; REFLUXING METHANOL; ACID; ESTERS;
D O I：
10.1007/s10562-009-9972-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A mesoporous nanosized KF/CaO-MgO catalyst was prepared by coprecipitation method, and was characterized by transmission electron microscopy, X-ray diffraction, nitrogen adsorption and laser confocal Raman microspectroscopy. The catalyst possessed a unique mesoporous structure with pore size of ca. 34 nm and the average particle size of ca. 35 nm. In comparison with CaO and KF/CaO catalyst, the as-prepared catalyst exhibited higher catalytic activity, higher resistance to saponification, and better acidoresistance (10 mg KOH/g oil). The factors affecting on transesterification were also investigated, and a desired biodiesel yield over 95% was obtained under an optimal preparation conditions.
引用
收藏
页码：574 / 578
页数：5
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