Incorporation of dynamic behaviour in an automated process synthesis system

Incorporating non-economic criteria into an automated process synthesis pro cedure enables an engineer to prune, more easily and more effectively, the large design space early in the design process. Although existing synthesis procedures are based on the use of steady state modelling, issues such as operability and flexibility are best handled through the use of dynamic mod els. This paper describes a discrete programming approach, implemented in t he Jacaranda synthesis tool, incorporating dynamic modelling for the genera tion of process designs, which meet specified criteria for operability or f lexibility. Particular attention is given to implementation issues, includi ng especially how to incorporate dynamic modelling efficiently in an automa ted environment. An example of the design of separation sequences with good start-up and feed disturbance behaviour is presented. (C) 2000 Elsevier Sc ience Ltd. All rights reserved.