Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4987315 | Chemical Engineering Research and Design | 2017 | 19 Pages |
Abstract
This paper is the first to address the challenges related to process dynamics and control of this highly integrated system. After showing the control difficulties associated with the original design owing to thermal unbalance, an efficient control structure is proposed which introduces a by-pass and an additional external duty stream to the side reboiler. The range of the external duty is rather small, about 5% of the combined duty of the reboilers, but sufficient to stabilize the system by controlling the temperature on the pre-concentration side of the column. Two quality control loops ensure product purity when the system is affected by feed flowrate and composition disturbances.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Iulian PatraÅcu, Costin Sorin Bildea, Anton A. Kiss,