摘要
在高温作用下甲苯和C9A发生歧化和烷基转移反应,生成目的产品苯和二甲苯,通过调整甲苯和C9A的比例可以实现苯和二甲苯产品的分布。二甲苯异构化反应通过环烷烃中间体将乙苯最大限度地转化为二甲苯,可以从混合二甲苯中获取最高产率的对二甲苯。介绍了相关积分法优化控制技术在芳烃联合装置歧化反应器和异构化反应器上的成功应用。项目设置两个优化器,组成两组在线优化系统,分别对甲苯歧化反应器、二甲苯异构化反应器进行在线优化操作。通过完善基础控制、解决数据传输问题、建立优化控制界面和切换逻辑等实施手段,不仅改善了反应器的控制效果,而且提高了产品收率,减少了能耗,降低了劳动强度。
Toluene disproportionation and transalkylation units, under high temperature, toluene and C9A disproportionation and Transalkylation reaction occurs to produce alkyl benzene and xylene, by adjusting the toluene and CgA proportion to realize the distribution of benzene and xylene products. Xylene isomerization units, in the reaction process, Through cycloparafin hydrocarbon intermediates ethylbenzene will maximize into xylene, high yield of paraxylene can be gained from xylene mixture. The successful application of DCIO on Toluene disproportionation reactor, Transalkylation reactor and xylene isomerization reactor is introduced. Two optimizer is set up to form two groups of online optimization system, and to conduct online optimal operation of the reactor individually, by improving the basic control, optimizing data transmission, building optimal control interface and switchi.ng logic. It is not only improved stability of unit operation and product quality, but also increased BTX yield, reduced energy consumption, decreased workload.
出处
《石油化工自动化》
CAS
2010年第5期20-23,共4页
Automation in Petro-chemical Industry
关键词
甲苯歧化-烷基转移反应
二甲苯异构化反应
相关积分法
Toluene disproportionation and transalkylation, Xylene isomerization, Dynamic Correlation Integration
