化工学报 ›› 2003, Vol. 54 ›› Issue (2): 204-208.

• 催化、动力学与反应器 • 上一篇    下一篇

催化裂化提升管反应器不可测输入的在线观测

江青茵;曹志凯;陈紫鸾;陈喜亮;邓铭波;王成林   

  1. 厦门大学化工系;中国石油化工集团公司广州分公司
  • 出版日期:2003-02-25 发布日期:2003-02-25

ONLINE OBSERVATION FOR UNMEASURABLE INPUTS IN FCCU RISER

JIANG Qingyin ;CAO Zhikai;CHEN Ziluan;CHEN Xiliang;DENG Mingbo;WANG Chenglin   

  • Online:2003-02-25 Published:2003-02-25

摘要: 在非线性系统观测理论基础上给出满足一定条件的不可测输入可观性的简化充分性条件,在此基础上分析催化裂化提升管反应器(FCCU)不可测输入的可观测条件,提出一更为有效的观测方案,给出仿真结果和工业运行结果.

关键词:

催化裂化装置, 非线性系统, 观测器, 不可测输入

Abstract:

On-line optimizing control of FCCU has been considered as a very important work.Although there have been so many studies on this topic but the practical application results are not so ideal.This is due to essentially that the process is very complicated so there exist some key input variables which affect the reaction and cannot be measured on-line.This is the bottleneck of optimization.

This paper discusses the problem of on-line observation of unmeasurable variables in nonlinear systems such as FCCU.Based on the theory of nonlinear observers, a simplified sufficient conditon under certain conditons is presented to confirm the observability of the unmeasurable inputs in these systems.Based on it, the observable condition for the unmeasurable inputs in the riser of FCCU is discussed and a more available on-line observation method for these variables is put forward.Simulation results and industrial running results are also given.

Key words:

催化裂化装置, 非线性系统, 观测器, 不可测输入