This article presents a comparative review on the operability and flexibility concepts and
their application to process design and control. First, the operability and flexibility …

Currently, chemical process design and process control are separate disciplines assisting
process development at different stages. Design and control decisions are made separately …

Because chemical plants are never operating at the nominal design conditions or at a
steady state it is important to include aspects of flexibility, operability and control into the …

One of the key components of chemical plant operability is flexibility—the ability to operate
over a range of conditions while satisfying performance specifications. A general framework …

Controllability is one of the most important aspects of chemical process operability, because
it can be used to assess the attainable operation of a given process and improve its dynamic …

Flexible operations design is one of the key challenges of process engineering over the last
years. However, even when uncertainty during the design phase is taken into account, the …

A systematic approach for the synthesis of flexible and controllable plants is presented. It
provides a new quantitative measure of the flexibility and controllability of a design and …

All chemical plants are subject to uncertainties and variations during their design and
operation. Given this fact, it is clearly important for an engineer to be able to quantify the …

An optimization-based approach is presented for assessing and enhancing the dynamic
operability characteristics of processes. A dynamic operability measure is used that captures …

Process flexibility is important to ensure that an operation can be both profitable and
manipulative to changes in internal or external process parameters. A new flexibility metric …