State Key Laboratory of Fine Chemicals, School of Chemical Machinery, Dalian University of Technology, Dalian 116024, China.
State Key Laboratory of Fine Chemicals, School of Chemical Machinery, Dalian University of Technology, Dalian 116024, China.
Bioresour Technol. 2017 Mar;228:298-304. doi: 10.1016/j.biortech.2016.12.085. Epub 2016 Dec 24.
Continuous fixed bed reactors filled by three kinds of packing which were glass bead, glass spring and Dixon rings were investigated. The effect of temperature, pressure, the molar ratio of methanol to oil, flow rate, the size and shape of the packing were researched. The highest yield 90.84% of FAME was obtained by filling Dixon rings as packing with the condition of the temperature was 350°C, the pressure was 22MPa, the molar ratio of methanol to oil was 42:1. In addition, the reusability of Dixon rings was perfect. Numerical simulation was researched to provide theoretical basis for experimental results, besides the kinetics and thermodynamics behavior were investigated to explore the reaction mechanism.
考察了三种填充床反应器，分别是玻璃珠、玻璃弹簧和 Dixon 环，研究了温度、压力、甲醇与油的摩尔比、流速、填充床的尺寸和形状等因素对反应的影响。在温度为 350°C、压力为 22MPa、甲醇与油的摩尔比为 42:1 的条件下，采用 Dixon 环作为填充床，甲酯的最高收率达到 90.84%。此外，Dixon 环具有良好的可重复使用性。数值模拟为实验结果提供了理论依据，同时还研究了动力学和热力学行为，以探讨反应机制。
