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November chementator briefs

By Edited by Gerald Ondrey |

Process Systems Enterprise Ltd. (PSE; London, U.K.; www.psenterprise.com) is to make new advanced thermodynamic modeling tools for prediction of liquid and gas thermodynamic properties available through its gPROMS process-modeling environment. The technology makes it possible to considerably speed up the optimal design of new process plants by integrating molecule and process design, says Mark Matzopoulos, PSE’s COO and marketing director. PSE has signed an agreement to commercialize Imperial College London’s (www3.imperial.ac.uk) Statistical Associating Fluid Theory (SAFT) research. SAFT allows many different thermodynamic properties of mixtures to be determined accurately based on physically realistic models of molecules and their interactions with other molecules. Its key advantage is the ability to predict very accurately the behavior of strongly associating systems, such as azeotropic refrigerant mixtures, aqueous solutions of non-ionic surfactants and even strong electrolyte solutions. It also accurately quantifies behavior of systems involving high molecular weight components, such as polymer-gas systems. All of these systems are typically represented poorly by conventional techniques, such as cubic equations of…
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