摘要
研究催化重整是石油炼制过程中复杂的工艺流程,为提高系统的稳定性和精度,针对过程进行动态仿真研究,将反应器、加热炉、分离罐作为单位操作工段,建立23元集总模型,保证模型精度较高,解决了求解时无限多个微分方程才能模拟反应过程的难题,并且采用LM法优化目标函数,使用部分迭代法中的龙格一库塔法(RK)计算求解。所建立的模型,正确反映单元的动态特性,从而为催化重整过程的设计、预测和优化提供有益的支持。
Catalytic reforming is one of the most complicated processes in petroleum refining. Dynamic simula- tion procedure is concerned in this article which considered the reactors, heaters, separators as cell operation, a new kinetics model involving twenty -three components was built up to resolve the problem that countless differential e- quations were needed for the modeling of reacting process. Marquardt approach of objective function is implemented in optimization, while Range--Kuta（RK） approach of section iteration is applied for calculation. The model estab- lished accurately reflects the dynamic characteristics in unit operation, so as to provide useful supporting in forecast and optimize catalytic reforming.
出处
《计算机仿真》
CSCD
北大核心
2010年第4期275-278,共4页
Computer Simulation
关键词
催化重整
集总
动态模拟
Catalytic reforming
Kinetics model
Dynamic simulation
