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当前位置: 首页 > 文章 > 响应面法优化新型磁性固体酸催化地沟油甘油酯化的工艺 湖北农业科学 2016 (5) 1259-1263
Position: Home > Articles > Optimization of the New Type Magnetic Solid Acid Catalyst Catalyzed Esterification of Swill-cooked Dirty Oil With Glycerol by Response Surface Method Hubei Agricultural Sciences 2016 (5) 1259-1263

响应面法优化新型磁性固体酸催化地沟油甘油酯化的工艺

作  者：
徐世杰;季祥;刘彬;成杰;蔡禄
单  位：
内蒙古科技大学生物工程与技术研究所/内蒙古自治区生物质能源化利用重点实验室
关键词：
地沟油;磁性固体酸催化剂;预酯化;响应面法
摘  要：
以地沟油为原料,采用自制新型磁性固体酸催化剂A作为地沟油预酯化催化剂,通过响应面法优化试验分析催化剂用量、醇酸摩尔比、反应温度,反应时间对地沟油酯化率的影响,得到最优工艺条件为醇酸摩尔比0.5、催化剂用量0.59%、反应温度221℃、反应时间2.55 h,酯化率达99.67%。地沟油酸值由114.82 mg KOH/g降至0.39 mg KOH/g。催化剂重复利用5次,酯化率依然保持在97.49%以上。
译  名：
Optimization of the New Type Magnetic Solid Acid Catalyst Catalyzed Esterification of Swill-cooked Dirty Oil With Glycerol by Response Surface Method
作  者：
XU Shi-jie;JI Xiang;LIU Bin;CHENG Jie;CAI Lu;The Institute of Bioengineering and Technology/Inner Mongolia Key Laboratory of Biomass-Energy Conversion ,Inner Mongolia University of Science and Technolog;
关键词：
swill-cooked dirty oil;;magnetic solid acid catalyst;;pre esterification;;response surface method
摘  要：
Using swill-cooked dirty oil as raw material,the new type self-made magnetic solid acid catalyst A was used as pre esterification catalyst. The effects of catalyst dosage, molar ratio of methanol to free fatty acid, reaction temperature,reaction time on the swill-cooked dirty oil esterification rate were analyzed by the response surface. Finally the optimal process conditions were got. The molar ratio of methanol to free fatty acid(FFA) was 0.5,the amount of catalyst was 0.59%,the reaction temperature was 221 ℃,reaction time was 2.55 h. The esterification rate reached 99.67%. Swill-cooked dirty oil acid value reduced from 114.82 mg KOH / g to 0.39 mg KOH / g. Catalyst was reused five times,the esterification rate remained at 97.49%.

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