不同富氧条件下对苯二甲酸产品b值预测与调控  

Prediction and control the b value of PTA under different oxygen-rich conditions

作　　者：吴国清[1] 

机构地区：[1]中国石化仪征化纤股份有限公司PTA生产中心,江苏仪征211900

出　　处：《合成技术及应用》2014年第2期28-30,41,共4页Synthetic Technology & Application

摘　　要：对苯二甲酸(PTA)装置在不同富氧条件下生产,反应器尾气氧浓度、含水量、反应温度、催化剂以及反应器负荷对PTA产品b值均有影响,存在较复杂的关系。通过分析对苯二甲酸氧化过程中有色杂质生成机理,建立了产品b值与不同操作参数之间的定量神经元模型,评估了不同富氧状态下各工艺参数对b值的影响规律,预测b值大小,提出不同富氧条件下的b值调整策略。Terephthalic acid （PTA） is produced in different oxygen-rich conditions, The oxygen concentration of exhaust gas, water content, reaction temperature, catalyst and reactor load of reactor all have influence on the b value of PTA, here arecomplicated. By analyzing the formation mechanism of the colored impurity in the oxidation process of terephthalic acid, established a kind of quantitative model between the b value of product and different operating parameters, evalued the effect on the b value under different oxygen-rich conditions and different process parameters,predicted the b value, thus an optimal operating strategy for the b value was obtained at various oxygenrich content conditions.

关 键 词：对苯二甲酸 B值 富氧 神经元网络模型 约束优化 

分 类 号：TQ245.12[化学工程—有机化工]