羰基化醋酸反应中的温度控制过程优化

Optimization of Temperature Control Process in Carbonylation of CH3COOH Reaction

甲醇液相羰基化Rh-I催化体系醋酸生产中影响温度的因素较多,具有模型不确定性、非线性、变量间相互耦合以及大滞后等特点,对工艺过程进行了部分改进。在TDC3000 DCS系统中利用TDC3000中的APM模块上的常规调节功能组态和控制语言CL/APM编程相结合,采用预测函数(PFC)与传统PID相结合技术,用集散控制方法对醋酸反应过程进行温度智能控制。实际证明该方法具有催化反应效果好、操作简单、系统运行安全可靠等特点。

In carbonylation of methanol liquid with RH-I as catalysis CH3 COOH manufacturing system, temperature was influenced by lots of factors. Aimed at the uncertainty, nonlinearity, cross coupling among variables and big delay of the model,made some improvement on manufacturing technique process. In TDC3000 DCS system,the normal adjustment function configuration in APM module was combined with control language, PFC （predictive functional control） was combined with traditional PID. DCS was used to control the average of the process of CH3 COOH reaction. Practical results prove good effects, simpleness, reliability and security in system operation.