化工进展2023，Vol.42Issue(12)：6191-6196,6.DOI:10.16085/j.issn.1000-6613.2023-0129
麻花式插件微通道中游离脂肪酸预酯化
Esterification of free fatty acids in a twist plug-in microchannel
摘要
Abstract
Microchemical technology is becoming an important method to strengthen the flow chemistry.In view of the limitations of the preesterification process of free fatty acids,such as low mass transfer efficiency,bulk volume,and high energy consumption.A twist plug-in microchannel was proposed to solve the above mentioned problems in the conventional esterification reactor.Methanol and oleic acid were employed as experimental systems to investigate the influence of parameters such as flow rate,reaction temperature and channel length on the preesterification reaction,and compared with other esterification reactors.The results showed that the conversion rate in the twist plug-in microchannel could reach 94.3%with only 3.26s at 40℃.With the increase of flow rate in the twist plug-in microchannel,the conversion first decreased and then increased,and the yield of fatty acid methyl ester gradually increased.The increase of catalyst dosage and alkyd molar ratio could promote the preesterification reaction.Increasing the reaction temperature and increasing the length of the twist plug-in microchannel could promote the conversion rate and the yield of fatty acid methyl ester.The correlation equations of reaction conversion rate and yield of fatty acid methyl ester were established,respectively.The calculated data were in good agreement with the experimental values with the relative error within 15%.关键词
微通道/麻花式插件/游离脂肪酸/预酯化Key words
microchannel/twist plug-in/free fatty acids/esterification分类
化学化工引用本文复制引用
马跃,王钦艳,金央..麻花式插件微通道中游离脂肪酸预酯化[J].化工进展,2023,42(12):6191-6196,6.基金项目
国家重点研发计划(2022YFC2904703) （2022YFC2904703）
国家自然科学基金(21776180) （21776180）
四川省科技计划重点研发项目(21ZDYF4086). （21ZDYF4086）
