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Figures 11.40-11.47 provide the response of the system for all of the disturbances imposed on the previous systems. Stable base-level regulatory control is achieved in all cases, with the composition of the bottoms from the recovery column driven back to its specification. Figures 11.40 and 11.41 show the responses to step changes in the throughput

20% excess B; Composition/Temp Cascade +20% F0A 374

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