RMPCT技术在连续重整装置上的应用  

Robust model predictive control technology applied in CCRU

作　　者：房韡[1] 王锋[1] 邱建章[1] 王雪梅[2] 

机构地区：[1]石油化工科学研究院,北京100083 [2]中原石油勘探局工程建设总公司油气储运工程处,河南濮阳457001

出　　处：《计算机与应用化学》2011年第6期713-717,共5页Computers and Applied Chemistry

摘　　要：催化连续重整是石油加工中极其重要的工艺过程。由于反应复杂,过程变量多,变量之间耦合严重,存在许多重要不易测量变量,使过程控制难度大,采用常规的PID单回路控制有很大的局限性。多变量模型预估控制MPC是石油化工生产中广泛应用的1种先进控制策略。霍尼韦尔公司在MPC的基础上开发出了鲁棒多变量模型预测控制技术RMPCT。将RMPCT技术应用于某炼厂连续重整装置,并根据连续重整装置工艺特点制定了控制策略,建立软测量仪表。文中共涉及4个先进控制器,分别控制连续重整装置中的预分馏塔、反应加热炉、重整反应器和稳定塔。先进控制器投用后的结果表明,控制策略设计是合理的,相对传统控制方式,先进控制能使装置运行更加平稳,优化了装置运行,实现了节能降耗。Continuous Catalytic Reforming Unit（CCRU）is very important unit in the refinery.Chemical reaction is extremely complexity in CCR. There are plenty of variables which are usually multiple-variable coupling.Many variables are unmeasured by the normal instruments.For these reasons given above,the CCRU process control is especially difficult,and the result is not satisfied by the normal PID single variable control system. Multivariable model predictive control（MPC）is one of advanced process control technologies which are extensive used in petrochemical process. Based on MPC,Honeywell promoted the Robust Multivariable model predictive control technology（RMPCT）.RMPCT is applied the CCRU.On the base of analysis with CCR process,the advanced controller targets and variables are determined.The controller strategy is designed.There are some soft instruments built.There are fore advanced controllers which are control the separately control prefractionator tower,heating furnace,reforming reactor and debutanizer tower.The industrial application shows that the control strategy and the definition of controller are reasonable.Compared with the normal control system,the RMPCT can more stabilize the unit,the unit operation is more optimized and energy consumption is less.

关 键 词：连续重整 先进控制 工艺计算 鲁棒多变量模型预测控制 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程] TB115[自动化与计算机技术—控制科学与工程]