| 鲁 洋1，王 霜1,2,3，李法社1,2,3，隋 猛1，王文超1.拟合系数定常回归法分析生物柴油酯化反应
影响因素的数学模型[J].中国油脂,2019,44(10):66~70.[LU Yang1, WANG Shuang1,2,3, LI Fashe1,2,3, SUI Meng1, WANG Wenchao1.Mathematical model for analyzing influencing factors of biodieselesterification by fitting coefficient constant regression method[J].China Oils and Fats,2019,44(10):66~70.] |
| 拟合系数定常回归法分析生物柴油酯化反应
影响因素的数学模型 |
| Mathematical model for analyzing influencing factors of biodieselesterification by fitting coefficient constant regression method |
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| DOI： |
| 中文关键词: 拟合系数定常回归法 硬脂酸异戊酯 离子液体 数学模型 |
| 英文关键词:fitting coefficient constant regression method isoamyl stearate ionic liquid mathematical model |
| 基金项目:国家自然科学基金项目（51766007）；云南省自然科学基金项目（2018FB092）；省部共建复杂有色金属资源清洁利用国家重点实验室自设项目（CNMRCUTS1704）；NSFC云南联合基金项目（U1602272） |
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| 中文摘要: |
| 以吡啶硫酸氢盐离子液体为催化剂，对硬脂酸和异戊醇催化制备硬脂酸异戊酯的转化率进行了研究。发现反应时间、反应温度、催化剂用量和醇酸摩尔比对生物柴油酯化反应的单一和复合影响规律，并利用拟合系数定常回归法构建这4种因素对生物柴油酯化反应复合作用的数学模型，得到生物柴油酯化反应转化率与4种因素的单一及复合影响的函数关系。并在醇酸摩尔比7∶ 1、反应时间30 min、催化剂用量7%、反应温度90 ℃的条件下对复合影响数学模型进行验证。结果表明，运用数学模型计算所得转化率为98.735 8%，与转化率实验值98.34%进行比较，相对误差仅为0.402%。 |
| 英文摘要: |
| The conversion rate of isoamyl stearate prepared by stearic acid and isoamyl alcohol was studied using pyridine hydrogen sulfate ionic liquid as catalyst. The single and compound influencing laws of reaction time, reaction temperature, catalyst dosage and molar ratio of alcohol to acid on the conversion rate of biodiesel were found, and a mathematical model was established to construct the compound effect of these four factors on esterification reaction by fitting coefficient constant regression method. The functional relationships between the conversion rate of biodiesel and the single and compound influence of the four factors were obtained. The mathematical model of the compound influence was verified under the conditions of molar ratio of alcohol to acid 7∶ 1, reaction time 30 min, catalyst dosage 7% and reaction temperature 90 ℃. The results showed that the conversion rate calculated by mathematical model was98735 8%. It was compared with the experimental value conversion rate of 98.34%, and the relative error was only 0.402%. |
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