丁苯橡胶聚合转化率的在线检测技术  

An On-Line Measurement Technique of SBR Polymerization Conversion

作　　者：徐文艳[1] 王豪[2] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234 [2]上海交通大学自动化系,上海200240

出　　处：《控制工程》2010年第S3期176-177,共2页Control Engineering of China

摘　　要：产品质量指标的在线连续检测是实现化工过程先进控制的前提,以丁苯橡胶(SBR)聚合反应过程为应用背景,利用软测量技术,根据聚合物胶浆密度随聚合反应程度发生变化,建立了聚合转化率数学模型,通过系统配置及测点位置的合理设计,采用常规仪表成功实现了丁苯橡胶聚合转化率的在线连续检测。应用结果表明,检测系统具有性能稳定可靠、硬件设备简单、操作维护方便、使用寿命长等优点,能够满足工艺控制的要求,提高了企业的经济效益,在丁苯橡胶行业中具有很好的推广应用价值。Advanced control in chemical industrial process relies on on-line measurement of product qualitv indexes.Based on soft-sensor technology and design of system configuration and measurement points,an on-line measurement system using conventional instruments is successfully realized in styrene-butadiene rubber(SBR) polymerization process.A mathematical model of polymerization conversion is established according to polymer glue density changes with polymerization degree.The application result shows that this measurement system is stable and reliable,with the advantages of simple hardware,convenient operation and long life,can meet the requirements of the process control and has great application value in SBR industry.

关 键 词：丁苯橡胶 聚合转化率 在线检测 软测量 

分 类 号：TQ333.1[化学工程—橡胶工业]