Comparative control study of ideal and methyl acetate reactive distillation
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چکیده
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 provides e2ective control of both systems for both high and moderate conversion designs. A two-temperature control structure is e2ective when the system is overdesigned in terms of number of reactive trays, holdup and/or catalyst load. Direct control of product purity for the high-conversion/high-purity design is di4cult because of system nonlinearity and interaction. Tray temperature control avoids the nonlinearity problem. ? 2002 Elsevier Science Ltd. All rights reserved.
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تاریخ انتشار 2002