Integrated design of energy-saving chemical process systems: strategy, methods and implementation

New statements of the problem of integrated design of energy-saving multiproduct chemical process systems (MCPS) under uncertainty have been formulated. Approaches to the development of modified ( fast) algorithms of calculating the flexibility function of energy-saving MCPS and solving two-stage stochastic optimization problems have been defined for the following practically relevant cases: 1) the values of uncertain parameters xi at MCPS running stage can be determined precisely at any moment of time; 2) vector xi consists of two subvectors xi(1) and xi(2), of which vector xi(1) can be identified at MCPS running stage and the domain of uncertainty of vector xi(2) is the same as at the design stage. Modified algorithms of solution of the above-mentioned problems are proposed implementing branch and bound procedure. An example of integrated design of energy-saving MCPS for azo dyes production is given.