Dielectric properties of mixed materials in transesterification reaction system

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

doi:10.11949/j.issn.0438-1157.20180105

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Dielectric properties of mixed materials in transesterification reaction system

更新时间：2025-12-10

- Dielectric properties of mixed materials in transesterification reaction system
- CIESC Journal Issue 8, Pages: 3670-3677(2018)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180105
  CLC： N015O621.2
- Online First：05 August 2018，
  
  Published：05 August 2018
- 稿件说明：
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SONG Rui, JIN Guangyuan, CUI Zhengwei, et al. Dielectric properties of mixed materials in transesterification reaction system[J]. CIESC Journal, 2018, (8): 3670-3677.
DOI：

SONG Rui, JIN Guangyuan, CUI Zhengwei, et al. Dielectric properties of mixed materials in transesterification reaction system[J]. CIESC Journal, 2018, (8): 3670-3677. DOI： 10.11949/j.issn.0438-1157.20180105.

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。

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.

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