MPC在重油催化裂化反应-再生系统控制中的应用

AN INDUSTRIAL APPLICATION OF MPC TECHNIQUE IN RESIDUE CATALYTIC CRACKER PROCESS CONTROL

将多变量模型预测控制（ＭＰＣ）技术应用于工业催化裂化装置反应－再生系统的过程控制，有助于提高反应－再生系统的稳定操作以及优化操作。从烧焦控制、裂化苛刻度控制、压力平衡控制、分馏塔底控制和裂化产率优化控制等五方面详细论述了反应－再生系统的控制策略。工业实践表明，应用此控制明显地改善了对再生催化剂温度、分馏塔底第一层板下温度等关键工艺参数的控制。

MPC technology has been applied for controlling the reaction/regeneration system of an industrial residue catalytic cracking unit to enhance its stable operation and optimizing the operation. Definition of the multivariable control strategy has been provided in sufficient detail with emphasis on the regenerator control, cracking conversion control, pressure balance control, main fractionator bottom control and cracking yields control. The industrial application showed that the key process parameters, such as the regenerator dense phase temperature and the temperature under the first tray of the fractionator bottom, etc. were obviously improved, which resulted in increasing conversion and light oil yield.