Ce掺杂固体酸催化制取生物柴油的工艺优化及脂肪酸甲酯含量的测定  

Optimization of biodiesel preparation process catalyzed by Ce-doped solid acid and determination of fatty acid methyl ester

作　　者：丁立军[1,4] 陈静 李国银 连海飞 郝一男 DING Li-jun;CHEN Jing;LI Guo-yin;LIAN Hai-fei;HAO Yi-nan(College of Science,Inner Mongolia Agricultural University,Hohhot 010018,China;Inner Mongolia Autonomous Institute of Agriculture and Animal Husbandry Quality and Testing,Hohhot 010031,China;College of Material Science and Art Design,Inner Mongolia Agricultural University,Hohhot 010018,China;Key Laboratory of Agricultural Ecological Security and Green Development at Universities of Inner Mongolia Autonomous,Hohhot 010018,China)

机构地区：[1]内蒙古农业大学理学院,内蒙古呼和浩特010018 [2]内蒙古自治区农牧业质量与检测研究所,内蒙古呼和浩特010031 [3]内蒙古农业大学材料科学与艺术设计学院,内蒙古呼和浩特010018 [4]农业生态安全与绿色发展自治区高等学校重点实验室,内蒙古呼和浩特010018

出　　处：《现代化工》2023年第5期140-146,共7页Modern Chemical Industry

基　　金：内蒙古自治区高等学校科学研究项目(NJZY22508);内蒙古科技厅成果转化项目(2019CG018)。

摘　　要：为优化SO_(4)^(2-)/Zr O_(2)-CeO_(2)-杭锦2^(#)土(SZCe-HJ)催化大豆油制取生物柴油的工艺,基于中心复合(Central Composite Design,CCD)试验设计方法,以反应温度(X_(1))、醇油摩尔比(X_(2))、催化剂质量分数(X_(3))、反应时间(X_(4))为自变量及生物柴油产率(Y)为响应值进行优化试验。将试验数据拟合建立了数学模型,该模型能够较准确地预测SZCe-HJ催化大豆油制取生物柴油的产率。结果表明,在反应温度为178℃、醇油摩尔比为30∶1、催化剂质量分数为3.06%、反应时间为6 h优化工艺条件下,生物柴油平均产率最高为62.92%。经气相色谱定量分析,生物柴油中脂肪酸甲酯质量分数达到95.18%,符合使用标准。In order to optimize the process that producing biodiesel from soybean oil catalyzed by SZCe-HJ,a series of experiments are carried out,based on Central Composite Design method,through taking reaction temperature(X_(1)),alcohol oil molar ratio(X_(2)),catalyst dosage(X_(3))and reaction time(X_(4))as independent variables,and the biodiesel yield(Y)as a response value.A mathematical model is established by fitting the experimental data with Design Expert software.The model can accurately predict the conversion rate of soybean oil to biodiesel over SZCe-HJ catalyst.Results show that the yield of biodiesel is up to 62.92%under the optimal reaction conditions that temperature is 178℃,the molar ratio of methanol to oil is 30∶1,catalyst dosage is 3.06%,and reaction performs for 6 h.It is shown through gas chromatography quantitative analysis that the content of fatty acid methyl ester in biodiesel produced reaches 95.18%,which is in line with the standard.

关 键 词：生物柴油 固体酸 制取工艺 响应曲面法 

分 类 号：TQ645[化学工程—精细化工]