摘要
为针对乙苯脱氢过程实施先进控制及优化技术,基于反应动力学、物料衡算、能量守恒原理及Ergun方程,通过求解微分方程组建立乙苯脱氢绝热负压径向反应器的机理模型,可有效预测未来系统的生产状况.在所建立的机理模型基础上,根据实际生产状况建立了所需的约束条件及优化条件,利用工程应用较多的多变量复合形约束算法实现了过程生产的在线优化.通过改变各个操作条件明确了它们对脱氢生产的影响规律,为后续先进控制与优化项目的实施奠定了基础.
By the principles of kinetics and conservation of energy, we solve the related differential equations and develop a first principle model for the dehydrogenation of ethylbenzene to styrene in an adiabatic radial flow reactor. This model can be used to predict the features of the dehydrogenation system. The constraints to the practical process are formulated for simulating and online optimizing the dehydrogenation of ethylbenzene using a constraint multivariable complex algorithm. Simulation results show that the obtained model can reveal the reactions in operation, and thus it is applicable to the implementation of advanced control and optimization.
出处
《控制理论与应用》
EI
CAS
CSCD
北大核心
2010年第7期903-908,共6页
Control Theory & Applications
基金
上海市科委人才培养计划资助项目(08R21421200)
关键词
乙苯脱氢
机理模型
在线优化
选择性
转化率
dehydrogenation of ethylbenzene
first principle modeling
online optimization
conversion
selectivity
