PX氧化反应器-结晶器串联过程的数学模型  

Models of Reactor-Crystallizer Connected in Series in p-Xylene Oxidation Process

作　　者：李维兴[1] 王丽军[1] 庄华洁[1] 王勤波[1] 李希[1] 

机构地区：[1]浙江大学化工系,浙江杭州310027

出　　处：《化学反应工程与工艺》2005年第6期481-486,共6页Chemical Reaction Engineering and Technology

基　　金：国家自然科学基金资助项目(20076039)

摘　　要：在对二甲苯(PX)氧化反应器研究的基础上,建立了考虑结晶器中的反应、蒸发、杂质扩散等过程的反应器一结晶器串联的数学模型。模拟表明,该模型计算结果与工业实测数据吻合。串联操作在催化剂用量、燃烧消耗、产品收率等方面均优于单一反应器;通过提高结晶器温度,强化结晶器氧化作用,并调整氧化反应器和结晶器的负荷分配,可以达到增产效果。On the basis of PX oxidation reactor research, models of reactor-crystallizer connected in. series in p-xylene oxidation process had been set up, which had taken account of physical and chemical processes occur in crystallizer involving reaction, evaporation and impurity transfer in crystal. Models＇ reliability was investigated with industrial data. Simulation results Showed that compared with single oxidation reactor operation, cooperation of reactor-crystallizer connected in series could reduce catalyst content, decrease combustion rate, and increase terephthalic acid yield. Simulation results also showed that increasing crystallizer temperature and adjusting capacity distribution between oxidation reactor and crystallizer could increase total production capacity.

关 键 词：对二甲苯氯化 数学模型 反应器 结晶器 

分 类 号：TQ018[化学工程] TQ031.7