Na_2O/MCM-41固体碱催化的废油脂酯交换反应研究  

Transesterification reaction of waste oil catalyzed by solid base Na_2O/MCM-41

作　　者：许慎敏[1] 陈慧[1] 梁宝臣[1] 

机构地区：[1]天津理工大学化学化工学院,天津300191

出　　处：《天津理工大学学报》2008年第2期5-7,共3页Journal of Tianjin University of Technology

基　　金：国家自然科学基金(20676106);科技部重大研究前期研究专项(2005CCA06500);天津市科技计划项目(07QTPTJC29900)

摘　　要：在固体碱催化剂Na2O/MCM-41作用下,对废油脂制取生物柴油的工艺优化进行了研究.考察了Na2O添加量、甲醇油脂摩尔比、催化剂用量、反应温度、反应时间等对酯交换反应的影响.在Na2O添加量为8.0%,醇油物质的量比为16∶1,催化剂用量为油重的3.0%,反应温度为130℃及反应时间为2 h的条件下,生物柴油的收率可达到89.84%.The technics of transestefification to produce biodiesel from waste oil catalyzed by solid base catalyst Na2O/MCM-41 was studied. The influence of different Na2O loadings, molar ratio of methanol to oil, dosage of solid base Na2O/MCM-41, reaction temperature and reaction time to transestfifieation were investigated. Under the following conditions： 8.0 % Na2O loading, molar ratio of methanol to oil 16：1, catalyst dosage 3.0 %, reaction temperature 130℃ and time 2 h, the yield of biodiesel could reach 89.84%.

关 键 词：固体碱催化剂 废油脂 生物柴油 酯交换反应 

分 类 号：O643.32[理学—物理化学]