Studies on Phase Equilibrium Calculations from Equations of State

Studies on Phase Equilibrium Calculations from Equations of State PDF Author: Juan Francisco Javier Alvarado
Publisher:
ISBN:
Category : Collineation
Languages : en
Pages : 436

Get Book Here

Book Description

Studies on Phase Equilibrium Calculations from Equations of State

Studies on Phase Equilibrium Calculations from Equations of State PDF Author: Juan Francisco Javier Alvarado
Publisher:
ISBN:
Category : Collineation
Languages : en
Pages : 436

Get Book Here

Book Description


Phase Equilibria in Chemical Engineering

Phase Equilibria in Chemical Engineering PDF Author: Stanley M. Walas
Publisher: Butterworth-Heinemann
ISBN: 1483145085
Category : Science
Languages : en
Pages : 689

Get Book Here

Book Description
Phase Equilibria in Chemical Engineering is devoted to the thermodynamic basis and practical aspects of the calculation of equilibrium conditions of multiple phases that are pertinent to chemical engineering processes. Efforts have been made throughout the book to provide guidance to adequate theory and practice. The book begins with a long chapter on equations of state, since it is intimately bound up with the development of thermodynamics. Following material on basic thermodynamics and nonidealities in terms of fugacities and activities, individual chapters are devoted to equilibria primarily between pairs of phases. A few topics that do not fit into these categories and for which the state of the art is not yet developed quantitatively have been relegated to a separate chapter. The chapter on chemical equilibria is pertinent since many processes involve simultaneous chemical and phase equilibria. Also included are chapters on the evaluation of enthalpy and entropy changes of nonideal substances and mixtures, and on experimental methods. This book is intended as a reference and self-study as well as a textbook either for full courses in phase equilibria or as a supplement to related courses in the chemical engineering curriculum. Practicing engineers concerned with separation technology and process design also may find the book useful.

Multiphase Equilibria of Complex Reservoir Fluids

Multiphase Equilibria of Complex Reservoir Fluids PDF Author: Huazhou Li
Publisher: Springer Nature
ISBN: 3030874400
Category : Technology & Engineering
Languages : en
Pages : 220

Get Book Here

Book Description
This short monograph focuses on the theoretical backgrounds and practical implementations concerning the thermodynamic modeling of multiphase equilibria of complex reservoir fluids using cubic equations of state. It aims to address the increasing needs of multiphase equilibrium calculations that arise in the compositional modeling of multiphase flow in reservoirs and wellbores. It provides a state-of-the-art coverage on the recent improvements of cubic equations of state. Considering that stability test and flash calculation are two basic tasks involved in any multiphase equilibrium calculations, it elaborates on the rigorous mathematical frameworks dedicated to stability test and flash calculation. A special treatment is given to the new algorithms that are recently developed to perform robust and efficient three-phase equilibrium calculations. This monograph will be of value to graduate students who conduct research in the field of phase behavior, as well as software engineers who work on the development of multiphase equilibrium calculation algorithms.

The Thermodynamics of Phase and Reaction Equilibria

The Thermodynamics of Phase and Reaction Equilibria PDF Author: Ismail Tosun
Publisher: Newnes
ISBN: 0444594973
Category : Science
Languages : en
Pages : 736

Get Book Here

Book Description
This book provides you with a sound foundation for understanding abstract concepts (eg physical properties such as fugacity, etc or chemical processes, ie distillation, etc) of phase and reaction equilibria and shows you how to apply these concepts to solve practical problems using numerous and clear examples.

The Calculation of Phase Equilibria from a Thermal Equation of State Applied to the Pure Fluids Argon, Nitrogen, Oxygen and Their Mixtures

The Calculation of Phase Equilibria from a Thermal Equation of State Applied to the Pure Fluids Argon, Nitrogen, Oxygen and Their Mixtures PDF Author: Eberhard Bender
Publisher:
ISBN:
Category : Argon
Languages : en
Pages : 184

Get Book Here

Book Description


State-of-the-art Review of Phase Equilibria

State-of-the-art Review of Phase Equilibria PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

Get Book Here

Book Description
High-pressure phase-equilibrium calculations using an equation of state are more sensitive to the mixing rules than to details in the effect of density or temperature on pressure. Attention must be given to the problem of how to extend equations of state to mixtures. One possible technique is provided by perturbation theory; another by superposition of chemical equilibria. At low or moderate pressures, vapor-phase corrections are often important. When specific intermolecular forces produce formation of molecular aggregates, strong deviations from ideal-gas behavior can be significant even at pressures well below 1 bar. When vapor-liquid equilibrium data are reduced using conventional expressions for the excess Gibbs energy, the resulting binary parameters tend to be partially correlated, it difficult, but no impossible, to calculate ternary liquid-liquid equilibria using binary parameters only. New models for calculating properties of liquid-phase mixtures mist allow for changes in free volume to give consideration to the effect of mixing on changes in rotational and vibrational degrees of freedom. Liquid-phase volumetric effects are also important in describing the solubilities of gases in solvent mixtures. Therefore, future liquid-phase models should incorporate a liquid-phase equation of state, either of the van der Waals type or, perhaps, as given by the direct-correlation function theory of liquids.

High-Pressure Fluid Phase Equilibria

High-Pressure Fluid Phase Equilibria PDF Author: Ulrich K Deiters
Publisher: Elsevier
ISBN: 044313281X
Category : Science
Languages : en
Pages : 476

Get Book Here

Book Description
High pressures play a more and more important role in modern technology. Examples are the supercritical fluid extraction of medical drugs and dyes from biological material, the handling of compressed or liquefied gases (including natural gas or hydrogen), the operation of modern thermal power plants, or various technical processes for controlled particle formation. High-Pressure Fluid Phase Equilibria, Second Edition enables understanding of the complicated phase behaviour that fluid or fluid mixtures (liquids, gases, or supercritical phases) can exhibit at elevated pressures. The underlying thermodynamic equations are explained, and robust algorithms for the computation of such equilibria (including solid–fluid equilibria) are proposed. Since the publication of the first edition of this book there have been many new developments, for instance differential equation methods for the computation of phase equilibria, accurate numerical differentiation, high-precision equations of state (e.g., the GERG model). Moreover, more detail and explanation has been added on important topics that were only briefly examined in the original book to better assist the reader, such as expansion processes and chemical reactions). The book remains invaluable as a single resource for grasping the intricacies of fluid phase behaviour. It enables readers to write or improve their own computer programs for the calculation of phase equilibria. It will appeal to graduate students of chemical engineering and university research staff involved in chemical engineering of supercritical fluids or the physical chemistry of fluids; the book can also serve as the basis of lectures or advanced students’ seminars. Comprehensively presents the complex world of phase equilibria (binary and ternary) and the various methods for computing phase equilibria, whilst carefully considering the relevant pressure and temperature ranges Introduces phase diagram classes, how to recognize them, and how to identify their characteristic features Presents rational nomenclature of binary fluid phase diagrams Includes problems and solutions for self-testing, exercises, or seminars New to this Edition: Presentation of the phase equilibria models is extended and expanded There are now more descriptions on more equations of state, especially the PCSAFT EoS Features new chapter on nonisothermal applications and chemically reactive systems and extensive updates and additions to all existing chapters

Equation of State Phase Equilibria Calculations

Equation of State Phase Equilibria Calculations PDF Author: Douglas Roger Perschke
Publisher:
ISBN:
Category : Carbon dioxide
Languages : en
Pages : 162

Get Book Here

Book Description


Phase Equilibria, Phase Diagrams and Phase Transformations

Phase Equilibria, Phase Diagrams and Phase Transformations PDF Author: Mats Hillert
Publisher: Cambridge University Press
ISBN: 1139465864
Category : Technology & Engineering
Languages : en
Pages : 525

Get Book Here

Book Description
Computational tools allow material scientists to model and analyze increasingly complicated systems to appreciate material behavior. Accurate use and interpretation however, requires a strong understanding of the thermodynamic principles that underpin phase equilibrium, transformation and state. This fully revised and updated edition covers the fundamentals of thermodynamics, with a view to modern computer applications. The theoretical basis of chemical equilibria and chemical changes is covered with an emphasis on the properties of phase diagrams. Starting with the basic principles, discussion moves to systems involving multiple phases. New chapters cover irreversible thermodynamics, extremum principles, and the thermodynamics of surfaces and interfaces. Theoretical descriptions of equilibrium conditions, the state of systems at equilibrium and the changes as equilibrium is reached, are all demonstrated graphically. With illustrative examples - many computer calculated - and worked examples, this textbook is an valuable resource for advanced undergraduates and graduate students in materials science and engineering.

Multiparameter Equations of State

Multiparameter Equations of State PDF Author: Roland Span
Publisher: Springer Science & Business Media
ISBN: 3662040921
Category : Science
Languages : en
Pages : 384

Get Book Here

Book Description
As a basis for printed property charts and tables, empirical multiparameter equa tions of state have been the most important source of accurate thermodynamic property data for more than 30 years now. However, due to increasing demands on the accuracy of thermodynamic property data in computerised calculations as well as the availability of appropriate software tools, and the ever increasing computer power, such formulations are nowadays becoming a valuable tool for everyday work. This development has substantially increased the number of scientists, engi neers, and students who are working with empirical multiparameter equations of state, and it continues to do so. Nevertheless, common knowledge on this kind of thermodynamic property models and on the ongoing progress in this scientific discipline is still very limited. Multiparameter equations of state do not belong to the topics which are taught intensively in thermodynamic courses in engineering and natural sciences and the books and articles where they are published mainly deal with the thermodynamic properties of certain substances rather than with the theoretical background of the used equations of state. In contrast to this, my concern mainly was to give a survey of the theoretical background of multiparameter equations of state both with regard to their application and their development.