Application of a Local Composition Equation of State to Supercritical Fluid Phase Equilibrium Problems

1984 ◽  
Vol 88 (9) ◽  
pp. 801-806 ◽  
Author(s):  
E. A. Brignole ◽  
S. Skjold-Jørgensen ◽  
A. A. Fredenslund
Keyword(s):  
Phase Equilibrium ◽  
Equation Of State ◽  
Supercritical Fluid ◽  
Equilibrium Problems ◽  
Fluid Phase ◽  
Local Composition ◽  
Fluid Phase Equilibrium

scholarly journals Evaluation of a New Multimodal Optimization Algorithm in Fluid Phase Equilibrium Problems

2020 ◽  
Vol 40 (1) ◽  
pp. 27-33
Author(s):  
Gustavo Mendes Platt ◽  
Marcelo Escobar Aragão ◽  
Fernanda Cabral Borges ◽  
Douglas Alves Goulart
Keyword(s):  
Phase Equilibrium ◽  
Equilibrium Problems ◽  
Optimization Problems ◽  
Fluid Phase ◽  
Problem Formulation ◽  
Flower Pollination Algorithm ◽  
Multimodal Optimization ◽  
Algorithm Performance ◽  
Computational Performance ◽  
Fluid Phase Equilibrium

Multimodal optimization problems are commonly found in engineering problems, and their solution can be very challenging for metaheuristic approaches. In this work, the use of a recently proposed multimodal metaheuristic method was analyzed - the Multimodal Flower Pollination Algorithm - in two fluid phase equilibrium problems: (i) the calculation of double azeotropes and (ii) parameter estimation in a thermodynamic model. Two different formulations were also considered in the double azeotropy problem. In the azeotrope calculation, a statistical analysis was conducted in order to verify if the algorithm performance is affected by the the problem formulation. The computational results indicate that the methodology provides robust results and that the objective function employed affects the computational performance.

Detailed calculation of complex fluid phase equilibrium sections for ternary systems

2017 ◽  
Vol 130 ◽  
pp. 399-414
Author(s):  
Gerardo O. Pisoni ◽  
Martín Cismondi ◽  
Marcelo S. Zabaloy ◽  
Lucio Cardozo-Filho
Keyword(s):  
Phase Equilibrium ◽  
Fluid Phase ◽  
Ternary Systems ◽  
Detailed Calculation ◽  
Fluid Phase Equilibrium ◽  
Complex Fluid
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