催化裂化过程动态模型及仿真──Ⅱ．过程动态仿真

FLUID CATALYTIC CRACKING PROCESS DYNAMIC MODEL AND SIMULATION──II. PROCESS DYNAMIC SIMULATION

本文根据“催化裂化过程动态模型及仿真（Ｉ）——过程动态模型”一文中建立的九阶状态空间模型对催化裂化动态过程实施仿真分析。文中首先引用复杂系统分解的结构化技术把催化裂化过程动态仿真系统分解成一系列简单的子系统，由此确立催化裂化过程动态仿真模型的模块层次结构并阐述一些主要功能模块其相应模型的构造。文中仿真算法选择四阶Ｒｕｎｇｅ－Ｋｕｔｔａ方法。仿真曲线的渐近收敛性表明仿真结果是令人满意的，从而表明所开发的催化裂化过程动态仿真系统是合理的、有效的。

Based on the 9th order state space model presented in the paper ″ Fluid Catalytic Cracking Process Dynamic Model and Simulation I. Proess Dynamic Model″, dynamic simulation study for the catalytic cracking process is presented in the paper. Using the structured technology for complex system decomposition, the catalytic cracking dynamic simulation system is decomposed into a series of simple subsystems; on this basis, modular level structure of the catalytic cracking process dynamic simulation model is built and some main modular models are described. In the paper, the simulation method employed is the 4th order Runge-Kutta method. The convergence of simulation curves demonstrates the simulation result is satisfactory. Also, it proves that the dynamic simulation system developed in the paper for fluid catalytic cracking process is feasible and effective.