摘要
采用基团贡献法对三丙酮胺合成反应进行了热力学分析。结果表明,该反应为放热反应,其放热程度随温度升高而增加;计算得到的主反应平衡常数大于106,从热力学角度来说,反应的平衡转化率和收率可以接近100%。通过固定床反应器进行了动力学实验,研究了在自制固体催化剂催化作用下343 K时三丙酮胺合成反应的动力学;根据反应机理与热力学计算结果建立了包含关键组分的反应动力学模型,并拟合得到343 K下的反应速率常数。
The thermodynamic analysis of the synthesis reaction of triacetoneamine was carried out using the group contribution method.The results show that the reaction is exothermic,and the degree of heat release increases with increasing temperature.The equilibrium constant of the main reaction is calculated to be greater than 106,indicating that the equilibrium conversion and yield of the reaction can approach 100%from a thermodynamic perspective.Experiments were conducted using a fixed bed reactor to study the kinetics of the synthesis of triacetoneamine under the catalytic action of a self-made solid catalyst at 343 K.A corresponding kinetic model was established based on the characteristics of the reaction system,and the reaction rate constant at 343 K was fitted.
作者
杨勇
孙伟振
赵玲
YANG Yong;SUN Weizhen;ZHAO Ling(State Key Laboratory of Chemical Engineering and Low-carbon Technology,East China University of Science and Technology,Shanghai 200237,China)
出处
《化工学报》
北大核心
2026年第1期416-424,共9页
CIESC Journal
关键词
三丙酮胺
基团贡献法
热力学
动力学模型
triacetoneamine
group-contribution
thermodynamics
kinetic modeling
