化工学报 ›› 2018, Vol. 69 ›› Issue (8): 3670-3677.doi: 10.11949/j.issn.0438-1157.20180105

• 能源和环境工程 • 上一篇    下一篇

酯交换反应体系混合物料的介电特性

宋睿, 金光远, 崔政伟, 宋春芳, 陈海英   

  1. 江南大学机械工程学院, 江苏省食品先进制造装备技术重点实验室, 江苏 无锡 214122
  • 收稿日期:2018-01-24 修回日期:2018-03-09 出版日期:2018-08-05 发布日期:2018-03-19
  • 通讯作者: 金光远 E-mail:gyuanjin@jiangnan.edu.cn
  • 基金资助:

    国家自然科学基金项目(21606109);中央高校基本科研业务费专项资金(JUSRP51634B)。

Dielectric properties of mixed materials in transesterification reaction system

SONG Rui, JIN Guangyuan, CUI Zhengwei, SONG Chunfang, CHEN Haiying   

  1. School of Mechanical Engineering, Jiangnan University, Jiangsu Key Laboratory of Advanced Food Manufactoring Equipment and Technology, Wuxi 214122, Jiangsu, China
  • Received:2018-01-24 Revised:2018-03-09 Online:2018-08-05 Published:2018-03-19
  • Supported by:

    supported by the National Natural Science Foundation of China (21606109) and the Fundamental Research Funds for the Central Universities(JUSRP51634B).

摘要:

近几年来,微波在制备生物柴油的化学工艺中被广泛应用。而微波强化化学反应的实验研究和工程应用中存在很多限制因素,物料介电特性是其中一个重要因素。针对甲醇和菜籽油加入自制催化剂的酯交换反应体系,采用矢量网络分析仪测量不同反应条件下甲醇和菜籽油酯交换反应系统的介电系数,考察反应温度、醇油摩尔比、催化剂用量等因素对介电特性的影响规律。结合酯交换反应动力学,讨论反应温度变化对介电特性的影响,从而为微波加热酯交换反应过程的多物理仿真提供物料介电信息。

关键词: 生物柴油, 催化剂, 酯交换, 介电特性, 反应动力学

Abstract:

In recent years, microwave enhanced chemical reaction has been widely used in the chemistry technology of biodiesel. There are some limitations in the study of microwave technology in chemical engineering applications. The dielectric properties of materials are one of the most important factors. Based on the transesterification reaction system of methanol and rapeseed oil with self-made catalyst, the dielectric constant of methanol and rapeseed oil transesterification system under different reaction conditions was measured by vector network analyser. The effects of reaction temperature, molar ratio of methanol to oil and the dielectric properties of the catalyst, were discussed based on experimental results. Combined with the kinetics of transesterification reaction, the influence of reaction temperature on the dielectric properties was discussed to provide material dielectric information for multi-physics simulation of transesterification under microwave heating.

Key words: biodiesel, catalyst, transesterification, dielectric properties, reaction kinetics

中图分类号: 

  • TN015

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