2008
DOI: 10.1016/j.jprocont.2007.12.001
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Role of multiplicity in reactive distillation control system design

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Cited by 29 publications
(13 citation statements)
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“…Stable closed-loop responses without any form of control structure failures such as wrong control action [17,26] or closedloop steady-state transition [17] are obtained (data not shown). These results suggest that two-point temperature inferential control with fixed reflux ratio provides an effective regulatory control of the endothermic quaternary ideal RD system studied here.…”
Section: Control Structuresmentioning
confidence: 99%
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“…Stable closed-loop responses without any form of control structure failures such as wrong control action [17,26] or closedloop steady-state transition [17] are obtained (data not shown). These results suggest that two-point temperature inferential control with fixed reflux ratio provides an effective regulatory control of the endothermic quaternary ideal RD system studied here.…”
Section: Control Structuresmentioning
confidence: 99%
“…The column operates in the kinetically controlled regime [22,26] where the catalyst holdup on the reactive trays is not large enough for reaction equilibrium to be attained on the trays. If the catalyst loading is increased to an extent where reaction equilibrium is attained on the trays, then for a given reactive zone temperature, the composition of the vapor and liquid streams leaving the reactive zone would remain constant, regardless of throughput.…”
Section: Increased Catalyst Loading Per Traymentioning
confidence: 99%
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“…Output multiplicity (multiple outputs for given input) is also observed in the T 32 M - S IO relation. Although output multiplicity is not an issue as a feedback controller with the appropriate set point and action (reverse/direct) would stabilize T 32 M at the desired value, input multiplicity in T 32 M and T 39 M can potentially result in control system failure due to set point infeasibility or “wrong” control action. , In both IO relations, since the slope at the crossover point marked with the asterisk (∗) has the same sign as the base-case, the “wrong” control action can lead to a closed loop steady state transition for sufficiently large disturbances.…”
Section: Introductionmentioning
confidence: 99%