Journal
CHEMICAL ENGINEERING RESEARCH & DESIGN
Volume 81, Issue A2, Pages 277-281Publisher
INST CHEMICAL ENGINEERS
DOI: 10.1205/026387603762878755
Keywords
distillation; heat integration; modelling; control; optimization
Categories
Ask authors/readers for more resources
multi-effect distillation where the condenser of a high pressure column is integrated with the reboiler of a low pressure column has been studied. The method of self-optimizing control has been used to provide a systematic procedure for the selection of controlled variables, based on steady-state economics. The system has 10 degrees of freedom at steady state. The heat integrated distillation system was optimized to find the nominal operating point. It was found that the constraints on the product composition, area in the combined reboiler/condenser, the purity constraint in the low pressure column and the pressure in the low pressure column are active constraints. For the remaining unconstrained variable it was found that a temperature in the low-pressure column has good self-optimizing properties. The study also shows how there can be multiplicities in the objective function for certain variables in the system.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available