Soft Sensor for Distillation Column Feeds
Distillation columns are normally controlled at a pre-designed condition, which is the optimal for a specified feed condition. In reality, however, the feeds may vary in their flow rates, temperatures, or compositions, which results in the distillation process operating at non-optimal values. Therefore, it is ideal to optimally adjust the operations in conjunction with the real feed variation. The online hardware measurement of the feed status, however, is basically impossible for most columns. A method using the temperature measurements along the distillation column to detect the feed variations is proposed in this paper. Verification is conducted through simulations under different conditions. Both derivative-based and derivative-free optimization methods are discussed for the soft-sensor establishment.
distillation column optimal operation feed variation temperature distribution soft-sensor.
Lingyu Zhu Xi Chen Zhijiang Shao Jixin Qian
State Key Laboratory of Industrial Control Technology, Department of Control Science & Engineering,Z State Key Laboratory of Industrial Control Technology, Department of Control Science & Engineering,Z
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
5755-5760
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）