大豆油制备生物柴油K_(2)CO_(3)/SiO_(2)固体碱催化剂性能研究  

Performance Study on the Preparation of Biodiesel K_(2)CO_(3)/SiO_(2) Solid Alkali Catalyst from Soybean Oil

作　　者：黄振旭 裴先茹 李雨晴 曾会杰 耿钦铭 徐淑华 Huang Zhenxu;Pei Xianru;Li Yuqing;Zeng Huijie;Geng Qinming;Xu Shuhua(School of Chemistry and Chemical Engineering,Zhengzhou Normal University,Zhengzhou 450044,China)

机构地区：[1]郑州师范学院化学化工学院,河南郑州450044

出　　处：《山东化工》2023年第6期9-12,共4页Shandong Chemical Industry

基　　金：郑州师范学院教师教育课程改革研究重点项目(JSJYZD-001221945)。

摘　　要：采用浸渍法制备了K_(2)CO_(3)/SiO_(2)固体碱催化剂,运用X射线粉末衍射仪对催化剂进行了分析表征。探究了反应时间、K_(2)CO_(3)负载量、醇油物质的量比、焙烧温度、催化剂用量和焙烧时间6个因素对生物柴油产率的影响。探究结果显示,在大豆油制取生物柴油时,最优的条件是:K_(2)CO_(3)负载量70%、焙烧温度600℃、焙烧时间4 h、反应时间是4 h、催化剂用量3%、醇油物质的量比9∶1。此时产物的产率是94.7%。The K_(2)CO_(3)/SiO_(2) solid base catalyst was prepared by impregnation method,and the catalyst was characterized by X-ray powder diffractometer.The six factors of reaction time,K_(2)CO_(3) loading,methanol-to-oil molar ratio,calcination temperature,catalyst dosage,and calcination time were used to explore their influence on the yield of biodiesel.The results showed that in the study on the catalytic performance of the K_(2)CO_(3)/SiO_(2) solid alkali catalyst prepared by soybean oil,the optimal experimental conditions were:the loading amount of K_(2)CO_(3) was 70%,the roasting temperature was 600℃,the roasting time was 4 h,the transesterification reaction time was 4 h,the catalyst dosage was 3%,the molar ratio of alcohol oil was 9∶1,and the yield of biodiesel was 94.7%.

关 键 词：大豆油 酯交换 K_(2)CO_(3)/SiO_(2) 生物柴油 

分 类 号：TQ645.8[化学工程—精细化工]