Process synthesis mass-exchanger networks

Stanley, C., and El-Halw, M. M. (1995). Synthesis of mass exchange networks using linear programming techniques. In Waste Minimization nirough Process Design (A. P. Rossiter, ed.), pp. 209-224. McGraw Hill, New York. 

Have mass integration possibilities been evaluated Are mass exchange networks (MEN) in place in the flowsheet MEN synthesis has been addressed in the book by El-Halwagi,9 and application of this method to water management has been addressed in a paper by Liu et al.10 These aspects should be looked at carefully during the process synthesis stage, as they offer considerable scope for solvent or MSA reduction. 

Keywords process condensate synthesis of mass exchange network multicomponents total annualized cost. 

Foo CY, Manan ZA, Yunus RM, Aziz RA. Synthesis of mass exchange network for batch processes 1. Utility targeting. Chem Eng Sci 2004 59 1009—26. 

The CHARMEN synthesis problem can be stated as follows Given a number Nr of waste (rich) streams and a number Ns of lean streams (frtiysical and reactive MSAs), it is desired to synthesize a cost-effective network of physical and/or reactive mass exchangers which can preferentially transfer certain undesirable species from the waste streams to the MSAs. Given also are the flowrate of each waste stream, G,, its supply (inlet) composition, yf, and target (outlet) composition, y/, and the supply and target compositions, Xj and jc for each MSA. In addition, available for service are hot and cold streams (process streams as weU as utilities) that can be used to optimize the mass-exchange temperatures. 

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