Optimizing control of a wall-cooled fixed-bed reactor

✍ Scribed by Xing-Gui Zhou; Liang-Hong Liu; Wei-Kang Yuan

• Book ID: 104108125
• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 145 KB
• Volume: 54
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/s0009-2509(98)00368-6

✦ Synopsis

A novel on-line optimizing control strategy for wall-cooled "xed-bed reactors is presented. It is essentially a nonlinear model predictive algorithm in which the pro"t is uniquely expressed as the objective function, instead of a square sum of the deviations between model predicted outputs and a desired output variable trajectory. Excessive bed temperature is avoided by setting a constraint on the maximum reactor temperature. Excellent performance including fast tracking to the optimum operating condition and small overshooting of the reactor temperature has been demonstrated by taking advantage of a dynamic KL-NN reactor model.