Prediction Of Phase Equilibria And Physical Properties For Mixtures With Oils Gases And Water
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Prediction Of Phase Equilibria And Physical Properties For Mixtures With Oils Gases And Water
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Author : K. Aasberg-Petersen
language : en
Publisher:
Release Date : 1991
Prediction Of Phase Equilibria And Physical Properties For Mixtures With Oils Gases And Water written by K. Aasberg-Petersen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Prediction Of Phase Equilibria And Physical Properties Formixtures With Oils Gases And Water
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Author : K. Aasberg-Petersen
language : en
Publisher:
Release Date : 1991
Prediction Of Phase Equilibria And Physical Properties Formixtures With Oils Gases And Water written by K. Aasberg-Petersen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.
Modeling Of Thermodynamic Properties And Phase Equilibria Of Multicomponent Systems Related To The Oil And Gas Industry Using The Pc Saft Equation Of State
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Author : Sally Hisham Mohamed El Meragawi
language : en
Publisher:
Release Date : 2015
Modeling Of Thermodynamic Properties And Phase Equilibria Of Multicomponent Systems Related To The Oil And Gas Industry Using The Pc Saft Equation Of State written by Sally Hisham Mohamed El Meragawi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Equations of state (EoS) have proved to be a reliable tool in chemical engineering thermodynamics for modeling the physical properties of complex systems. Various types of EoS have been developed based on different theories. For various reasons, some have become more popular for use in industry and academia. Of the popular EoS, two were chosen for investigation in this thesis. The first one was the Perturbed Chain- Statistical Associating Fluid Theory (PC-SAFT), an equation derived based on statistical mechanics and the second was the Peng-Robinson (PR) EoS, a cubic EoS commonly used in industry. In this work, the prediction capabilities of these two EoS were compared for several properties. The analysis began with an evaluation of their use in the prediction of the saturation properties of pure components and derivative properties from ambient conditions to the supercritical range. The particular derivative properties studied include the isochoric and isobaric heat capacities, the speed of sound, and the isothermal compressibility. In general, it was concluded that PC-SAFT outperforms PR in all cases. Next, the same primary and derivative properties of several binary and a select ternary mixture were studied. To improve agreement with experimental data, a binary interaction parameter was introduced and fitted to binary mixture vapor - liquid equilibria (VLE) data. This procedure drastically improved the accuracy of the models compared to the case where no binary interaction parameter used for the case of VLE predictions. However, for the case of the derivative properties, the use of the binary interaction parameter to ensure a more accurate representation of the interactions between molecules had only a marginal effect on the prediction of these properties. Finally, phase equilibria of hydrates were studied. As EoS for fluids are not designed to predict the properties of solid phases, the van der Waals-Platteeuw model was incorporated to allow for the prediction of three-phase equilibrium conditions of various hydrate formers. Specifically, this work focused on the equilibrium of a water-rich liquid phase, a hydrate phase and a vapor phase rich in a hydrate former. In all cases, calculations of the solid hydrate phase properties are based on the Kihara potential. This potential requires three parameters to be defined; initial values for which were found through a review of the literature. The accuracy of the predictions of the three-phase equilibrium is highly dependent on the reliability of these parameters. Thus, one of the parameters, the so-called Îæ parameter, was fitted to hydrate equilibrium data and resulted in a significant improvement in the accuracy of predictions of both PC-SAFT and PR EoS. The new set of parameters was then used to predict the three-phase equilibrium of several binary, ternary and quaternary mixtures of hydrate forming agents. Several conclusions are drawn from this work, including the observation that the accuracy of the models is reduced when the number of components increases. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/155481
Phase Equilibrium In Mixtures
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Author : M. B. King
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Phase Equilibrium In Mixtures written by M. B. King and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
Phase Equilibrium in Mixtures deals with phase equilibrium and the methods of correlating, checking, and predicting phase data. Topics covered range from latent heat and vapor pressure to dilute solutions, ideal and near-ideal solutions, and consistency tests. Molecular considerations and their use for the prediction and correlation of data are also discussed. Comprised of nine chapters, this volume begins with an introduction to the role of thermodynamics and the criteria for equilibrium between phases, along with fugacity and the thermodynamic functions of mixing. The discussion then turns to some of the phase phenomena which may be encountered in chemical engineering practice; methods of correlating and extending vapor pressure data and practical techniques for calculating latent heats from these data; the behavior of dilute solutions both at low and high pressures for reacting and non-reacting systems; and the behavior of ideal and near-ideal solutions. The remaining chapters explore non-ideal solutions at normal pressures; practical methods for testing the thermodynamic consistency of phase data; and the extent to which the broad aspects of phase behavior may be interpreted in the light of simple molecular considerations. This book is intended primarily for graduate chemical engineers but should also be of interest to those graduates in physics or chemistry who need to use phase equilibrium data.
Phase Equilibrium Engineering
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Author : Esteban Brignole
language : en
Publisher: Elsevier Inc. Chapters
Release Date : 2013-04-02
Phase Equilibrium Engineering written by Esteban Brignole and has been published by Elsevier Inc. Chapters this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-02 with Science categories.
In previous chapters, we have seen the fundamental criteria for phase equilibria and how the phenomenological phase behavior and separation technology of real mixtures are determined by their constituent molecular interactions. Our purpose in this chapter is to present the properties of fluids and the models for the prediction of thermodynamic properties and phase equilibria. These models are classified as predictive models using only pure component properties and semiempirical models based on a molecular thermodynamic approach. Finally, the chapter highlights the importance of the class of mixture and molecular interactions of its components in the selection of thermodynamic models for phase equilibrium calculations.
Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1993
Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Power resources categories.
Phase Equilibria In Chemical Engineering
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Author : Stanley M. Walas
language : en
Publisher: Butterworth-Heinemann
Release Date : 2013-10-22
Phase Equilibria In Chemical Engineering written by Stanley M. Walas and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.
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.
Phase Equilibria And Gas Mixtures Properties
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Author :
language : en
Publisher:
Release Date : 1968
Phase Equilibria And Gas Mixtures Properties written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.
High Pressure Fluid Phase Equilibria
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Author : Ulrich K Deiters
language : en
Publisher: Elsevier
Release Date : 2012-04-26
High Pressure Fluid Phase Equilibria written by Ulrich K Deiters and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-04-26 with Technology & Engineering categories.
The book begins with an overview of the phase diagrams of fluid mixtures (fluid = liquid, gas, or supercritical state), which can show an astonishing variety when elevated pressures are taken into account; phenomena like retrograde condensation (single and double) and azeotropy (normal and double) are discussed. It then gives an introduction into the relevant thermodynamic equations for fluid mixtures, including some that are rarely found in modern textbooks, and shows how they can they be used to compute phase diagrams and related properties. This chapter gives a consistent and axiomatic approach to fluid thermodynamics; it avoids using activity coefficients. Further chapters are dedicated to solid-fluid phase equilibria and global phase diagrams (systematic search for phase diagram classes). The appendix contains numerical algorithms needed for the computations. The book thus enables the reader to create or improve computer programs for the calculation of fluid phase diagrams. introduces phase diagram classes, how to recognize them and identify their characteristic features presents rational nomenclature of binary fluid phase diagrams includes problems and solutions for self-testing, exercises or seminars
First Principles Predictions Of Thermodynamic Properties And Phase Equilibria For Pure And Mixture Fluids
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Author : 謝介銘
language : en
Publisher:
Release Date : 2010
First Principles Predictions Of Thermodynamic Properties And Phase Equilibria For Pure And Mixture Fluids written by 謝介銘 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.