摘要
为了研究蒎烷在裂解管式反应器中内主要变量沿管程的分布,基于自由基链式机理,结合质量、能量和动量守恒,本文建立蒎烷在管式反应器中的二维模型。通过反应器内的温度分布、出口转化率和产品选择性与工业数据的对比,发现计算值与工业实际值吻合良好,验证了该模型的准确性。模拟分析了蒎烷进料量、入口温度和管径对反应的转化率、选择性的影响,结果表明最佳的工艺条件是蒎烷进料量为0.36 kmol.h^(-1),进料温度为646 K,裂解管管径(0.3～0.4)m,为蒎烷热裂解反应器的优化设计提供理论依据。
A two-dimensional model for an industrial pinane cracking tubular reactor was established in order to investigate the distribution of important variables inside the reactor. The model was based on the reaction kinetics and combined with mass, energy, and momentum balance. The model was proved accurate compared with industrial dada such as the pinane conversion, dihydromyrcene （DHM） selectivity, and temperature at the outlet of reactor. The effects of feed flow rate, feed temperature, and reactor diameter on the conversation of pinane and the selectivity to DHM were investigated through simulation, and the optimum technological parameters were obtained as following： the feed flow rate 0.36 kmol.h^-1, feed temperature 646 K, and reactor diameter （0.3-0.4） m, which provided reliable information for the pinane cracking reactor operation optimization and decision making.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2012年第3期274-278,共5页
Computers and Applied Chemistry
基金
国家自然科学基金资助项目(201176049)
福建省自然科学基金资助项目(2011J01038)
关键词
蒎烷
二氢月桂烯
裂解
二维模型
pinane, dihydromyrcene, cracking, 2-dimensional model
