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|Title:||A method for calculation of vapor-liquid and liquid-liquid equilibria|
|Citation:||Han, G.,Rangaiah, G.P. (1997). A method for calculation of vapor-liquid and liquid-liquid equilibria. Computers and Chemical Engineering 21 (8) : 905-913. ScholarBank@NUS Repository.|
|Abstract:||A new parameter, pseudo temperature (Tp) is introduced to solve two-phase equilibrium calculations. The resulting Tp-method has a single set of equations to describe different phase regions encountered in vapor-liquid equilibrium (VLE) and liquid-liquid equilibrium (LLE). It does not require a priori the number of phases existing at equilibrium, and involves a minimization problem having a linear objective function subject to nonlinear constraints, which can be solved by a version of successive linear programming method. Tp-method is tested on typical examples for VLE and LLE, and compared with pseudo pressure (Pp) method of Bullard and Biegler [Computers and Chemical Engineering 17, 95-109 (1993)] for VLE. In each example, several operating conditions are considered to cover both single- and two-phase situations. The results show that Tp-method is successful for both VLE and LLE, and that Tp-and Pp-methods are comparable for VLE. © 1997 Elsevier Science Ltd.|
|Source Title:||Computers and Chemical Engineering|
|Appears in Collections:||Staff Publications|
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