An input-output process model involving the isomerization of dimethyl benzene is statis-tically established, and developed and tested on a commercial unit.

• 根据长期积累的操作记录数据建立了二甲苯异构化反应器操作工况的统计模型，据此对优化方向进行计算分析，制定了调优方案并在工业装置上实施。