William L. Luyben

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Although steady-state design and open-loop dynamics of reactive distillation columns have been explored in many papers, very few papers have dealt with closed-loop control. Most of these control papers consider reactive distillation columns in which there is only one product, and an excess of one of the reactants is sometimes assumed. This paper explores(More)
The control of an ideal reactive distillation column is compared with that of a similar, but somewhat di2erent, real chemical system, the production of methyl acetate. Similarities and di2erences are observed. Three control structures are evaluated for both systems. A control structure with one internal composition controller and one temperature controller(More)
This paper considers the design and control of a reactive distillation column in which one reactant is consumed and two products are formed (A B+C). The volatilities are B ¿ A ¿ C , i.e. the reactant is intermediate boiling between the two products. The metathesis of 2-pentene is considered as the demonstrative example. The column has a single feed of the(More)
This paper considers the plantwide control structure design for improved disturbance rejection. The balanced control scheme of ‘Comput. Chem. Eng. 20 (1996) 1291’ has the advantage of alleviating the snowball effect for plants with recycles by changing condition in several units in the process so as to distribute the work evenly among process units as(More)