【摘要】 建立了管式层流反应器中苯乙烯本体热聚合过程的模型。数值模拟了反应介质流速和温度沿反应器的轴向和径向的分布,考察了反应器的几何尺寸、壁温、反应介质入口温度和流量对反应器出口转化率和产物相对分子质量的影响。结果表明,反应器的几何尺寸和反应器壁温及进料质量流量对单体转化率影响较大,而入口温度影响不大。更多还原

【Abstract】 A model for styrene thermal polymerization process in tubular reactor has been developed starting from basic transport equation without adjustable parameters. Radical and axial changes in velocity and temperature were taken into consideration in this model. Various factors that affect monomer conversion and product quality such as dimensions of reactor, wall temperature, inlet temperature and inlet mass flow, were studied by computational simulation based on this model. The result show that reactor length, reactor diameter, wall temperature and inlet mass flow have significant effects on monomer conversion and quality of product. Whereas inlet temperature effect is much weaker.更多还原