化工学报2024，Vol.75Issue(6)：2157-2165,9.DOI:10.11949/0438-1157.20231318
液相法合成三聚氰酸体系热力学分析
Thermodynamics analysis on liquid-phase synthesis of cyanuric acid
晁惠雨 1白振敏 2侯汉青 1田立志 3李洪 3房晓权 3石晓华1
作者信息
- 1. 郑州大学化工学院,河南 郑州 450001
- 2. 中海石油化学股份有限公司,北京 572600
- 3. 中海石油华鹤煤化有限公司,黑龙江 鹤岗 154100
- 折叠
摘要
Abstract
The liquid-phase synthesis of cyanuric acid using glycol as a circulating agent is a series reaction system consisting of alcoholysis,elimination and cycloaddition reactions.The thermophysical properties of components,enthalpy changes,Gibbs free energy changes and equilibrium constant of this reaction system were carried out by group contribution method.Then feasibility and difficulty of the reactions were analyzed on the basis of thermodynamic calculation combined with available experimental data.The results show that alcoholysis and elimination are both endothermic process and the equilibrium constants of the two reactions are small,which can be promoted forward by improving temperature.Cycloaddition reaction is exothermic and can be fully proceeded.The consecutive reaction can proceed under the appropriate conditions.The outcome from thermodynamic calculation and analysis can provide theoretical guidance for the development of the industrial scale-up process of the reaction.关键词
三聚氰酸/尿素/醇/双氨基甲酸酯/热解/热力学/基团贡献法Key words
cyanuric acid/urea/alcohol/dicarbamate/pyrolysis/thermodynamics/group contribution method分类
化学化工引用本文复制引用
晁惠雨,白振敏,侯汉青,田立志,李洪,房晓权,石晓华..液相法合成三聚氰酸体系热力学分析[J].化工学报,2024,75(6):2157-2165,9.
