# Working Guide to Vapor-Liquid Phase Equilibria Calculations

Working Guide to Vapor-Liquid Phase Equilibria Calculations offers a practical guide for calculations of vapor-phase equilibria. The book begins by introducing basic concepts such as vapor pressure, vapor pressure charts, equilibrium ratios, and flash calculations. It then presents methods for predicting the equilibrium ratios of hydrocarbon mixtures: Wilson's correlation, Standing's correlation, convergence pressure method, and Whitson and Torp correlation. The book describes techniques to determine equilibrium ratios of the plus fraction, including Campbell's method, Winn's method, and Katz's method. The remaining chapters cover the solution of phase equilibrium problems in reservoir and process engineering; developments in the field of empirical cubic equations of state (EOS) and their applications in petroleum engineering; and the splitting of the plus fraction for EOS calculations.

Audience

Petroleum Engineer, Reservoir Engineer, Production Engineer, Drilling Engineer, Completion Engineer, Operations Engineer, Drilling Manager, Operations Manager, Project Production Engineer, Project Reservoir Engineer

Paperback, 300 Pages

Published: September 2009

Imprint: Gulf Professional Publishing

ISBN: 978-1-85617-826-6

## Contents

• 1 Vapor Pressure2 Equilibrium Ratios3 Flash Calculations Example 3-1 Solution4 Equilibrium Rations for Real Solutions 4.1 Wilsonâs Correlation 4.2 Standingâs Correlation Example 4-1 Solution 4.3 Convergence Pressure Method Haddenâs Method Standingâs Method Rzasaâs Method 4.4 Whitson and Torp Correlation Example 4-2 Solution5 Equilibrium Ratios for the Plus Fraction 5.1 Campbellâs Method 5.2 Winnâs Method 5.3 Katzâs Method6 Applications of the Equilibrium Ratio in Reservoir Engineering 6.1 Dew-Point Pressure Example 6-1 Solution 6.2 Bubble-Point Pressure Example 6-2 Solution 6.3 Separator Calculations Example 6-3 Solution 6.4 Density Calculations The Standing-Katz Method Example 6-4 Solution The Alani-Kennedy Method Example 6-5 Solution7 Equations of State 7.1 The Van Der Waals Equation of State Example 7-1 Solution 7.2 Redlich-Kwong Equation of State Example 7-2 Solution Example 7-3 Solution Example 7-4 Solution 7.3 Soave-Redlich-Kwong Equation of State and Its Modifications Example 7-5 Solution Example 7-6 Solution 7.4 Modifications of the SRK Equation of State Example 7-7 Solution 7.5 Peng-Robinson Equation of State and Its Modifications Example 7-8 Solution8 Applications of the Equation of State in Petroleum Engineering 8.1 Determination of the Equilibrium Ratios 8.2 Determination of the Dew-Point Pressure 8.3 Determination of the Bubble-Point Pressure 8.4 Three-Phase Equilibrium Calculations 8.5 Vapor Pressure from Equation of State9 Splitting and Lumping Schemes of the Plus Fraction 9.1 Splitting Schemes Katzâs Method Example 9-1 Solution Lohrenzâs Method Example 9-2 Solution Pedersenâs Method Example 9-3 Solution Ahmedâs Method Example 9-4 Solution 9.2 Lumping Schemes Whitsonâs Lumping Scheme Example 9-5 Solution Example 9-6 SolutionProblemsReferencesIndex