Boosting temperature inferential control performance in distillation columns
An effective compensation method improves performance
Although dual-point temperature inferential control can maintain stable distillation column operation, steady-state deviations often exist in product qualities in the face of nonstationary disturbances in feed flowrates and/or compositions. This article introduces an effective compensation mechanism that can considerably boost performance of the dual-point temperature inferential control of various distillation columns.
Temperature inferential control offers more advantages than direct composition control in distillation column operation in the aspects of controllability, reliability and maintenance cost.16 However, it also suffers from a number of drawbacks in tight control of produc
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