柑青醛合成新铃兰醛水合反应宏观动力学模型研究.pdf

文档介绍：第卷第期生物质化学工程
44 6 Vol. 44 No. 6
年月摇摇摇摇摇摇
2010 11 Biomass Chemical Engineering Nov. 2010
柑青醛合成新铃兰醛水合反应宏观动力学模型研究
陈艳平, 王碧玉, 黄智贤, 吴燕翔*
(福州大学化学化工学院, 福建福州)
350108
摘要:研究了以柑青醛为原料合成新铃兰醛的水合反应宏观动力学。探讨了反应条件对反应速率常数的影响,较佳工艺
摇
条件为反应温度、柑青醛初始浓度和流化速率-3 。采用拟均相反应模型对柑青醛合成新
338 K 0. 534 6 mol / L 3. 58伊10 m/ s
铃兰醛反应动力学数据进行拟合,得实验条件下宏观动力学模型: r . 7 C C ( RT) 6
- A = 1 26 伊10 A H2O exp -66 670/ -3. 68 伊10
C ( RT),正反应活化能(Ea )为,逆反应活化能(Ea )为。用动力学模型求得的计算
B exp -57 939/ + 66. 670 kJ/ mol - 57. 939 kJ/ mol
值与实验值的相对误差均小于,验证了所建动力学模型是适当的, 能较好的描述柑青醛水合反应过程。
5 %
关键词:柑青醛; 新铃兰醛; 水合反应; 动力学模型
中图分类号: 文献标识码: 文章编号: ( )
TQ224. 6摇摇摇摇摇摇摇 A摇摇摇摇摇摇摇 1673-5854 2010 06-0018-05
Study on ics Model of Synthesis of Lyral from Myrac Aldehyde
CHEN Yan鄄ping, WANG Bi鄄yu, HUANG Zhi鄄xian, WU Yan鄄xiang
(College of chemistry & Chemical Engineering, Fuzhou University, Fujian Fuzhou 350108)
Abstract
:The hydration ics of lyral synthesis using myrac aldehyde as raw materials was studied. Reaction conditions on
reaction rate constant were investigated. The optimum conditions were identified:reaction temperature 338 K, initial concentration
-3
of myrac aldehyde 0. 534 6 mol / L and the flow rate 3. 58伊10 m / s. ic data of myrac aldehyde synthesis lyral were fitted
r . 7 C C RT
based on homogeneous reaction model. A ics model was gained, - A = 1 26 伊 10 A H2O exp ( - 66 670 / ) - 3. 68 伊