Experimental Phase Behavior in High Pressure Carbon Dioxide-aromatic Systems and the Prediction of Such Behavior Using a New Quadratic Equation of State PDF Download
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Author: Rahoka Sadid Mohamed
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Rahoka Sadid Mohamed
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 496
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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 1116
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Book Description
Author: Claudia R. V. Morgado
Publisher: BoD – Books on Demand
ISBN: 9535112252
Category : Technology & Engineering
Languages : en
Pages : 474
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Book Description
The reconciliation of economic development, social justice and reduction of greenhouse gas emissions is one of the biggest political challenges of the moment. Strategies for mitigating CO2 emissions on a large scale using sequestration, storage and carbon technologies are priorities on the agendas of research centres and governments. Research on carbon sequestration is the path to solving major sustainability problems of this century a complex issue that requires a scientific approach and multidisciplinary and interdisciplinary technology, plus a collaborative policy among nations. Thus, this challenge makes this book an important source of information for researchers, policymakers and anyone with an inquiring mind on this subject.
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Category :
Languages : en
Pages :
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A theoretical approach, the SAFT (Statistical Associating Fluid Theory) equation of state, is adapted and extended to understand the thermodynamics and phase equilibria of systems containing carbon dioxide (CO2), CO2-philic and CO2-phobic compounds, including both small molecules (such as n-alkanes and n-perfluoroalkanes) and macromolecules (homopolymers, polymer blends and copolymers), to provide rapid reliable predictions for a wide range of systems of interest. Most prior research has concentrated on developing SAFT equations suitable for phase equilibrium calculations (vapor-liquid and liquid-liquid). In the present work we demonstrate that the SAFT equations are particularly useful not only in pressure-temperature-volume-composition phase equilibrium problems but, also for more difficult aspects of the behavior of mixtures such as derivative properties (e.g., Joule-Thomson inversion curves) and formation of aggregates. To accomplish this goal, we studied the strengths and limitations that different thermodynamic models present not only for pure CO2, but also for its mixtures with small molecules and macromolecules. The research is divided in three major areas: a) a fundamental investigation of the thermophysical properties of pure carbon dioxide, using predictions from both molecular simulations and equations of state; b) a detailed study of the phase equilibria of binary and ternary mixtures of CO2, n-perfluoroalkanes and n-alkanes as a representation of small CO2-philic and partially CO2-phobic compounds; and c) a study of phase equilibria in binary and ternary mixtures of CO2, CO2-philic and CO2-phobic polymers. The ability of the SAFT approach to perform such predictions relies on its more rigorous foundation, since it is practically the only approach that has been able to describe both small molecules and macromolecules.
Author: Goodness Imonighavwe
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Hydrocarbon Phase Behavior modelling is extremely important in the characterization of fluids because this helps in obtaining fluid properties that are important in the design and optimization of various production processes and facilities. These fluid properties were initially obtained through laboratory measurements until the introduction of cubic equations of state which provided fairly accurate results in less time. A major drawback of cubic equations of state is measurement of liquid densities. This is extremely important when dealing with reservoir fluids such as gas condensates which exhibit a retrograde behavior of splitting into gas and liquid phases during isothermal expansion. The goal of this study is to develop a tool that will be able to detect when a hydrocarbon mixture undergoes a phase split and also be able to provide a more accurate prediction of condensate properties than the presently used Equations of state. This tool is developed by the incorporation of a newly developed equation of state into flash calculations and the predictions made are not only compared to experimental values but also to the predictions made by the popular two parameter, Peng-Robinson (PR) and three parameter Patel-Tejas (PR) equations of state.The new equation of state proved to be more accurate in the prediction of the composition, density and viscosity of the liquid phase when compared to Peng-Robinson and It also showed great accuracy in the predictions of these properties at higher temperatures, where Patel-Teja failed to excel.
Author: Mary B. Kiszka
Publisher:
ISBN:
Category :
Languages : en
Pages : 160
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Author: David P. Ting
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages :
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Book Description
Author: Michael L. Michelsen
Publisher:
ISBN: 9788798996132
Category : Phase rule and equilibrium
Languages : en
Pages : 382
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Book Description
Author: Aage Fredenslund
Publisher: Elsevier
ISBN: 0444601503
Category : Technology & Engineering
Languages : en
Pages : 393
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Book Description
Vapor-Liquid Equilibria Using UNIFAC: A Group-Contribution Method focuses on the UNIFAC group-contribution method used in predicting quantitative information on the phase equilibria during separation by estimating activity coefficients. Drawing on tested vapor-liquid equilibrium data on which UNIFAC is based, it demonstrates through examples how the method may be used in practical engineering design calculations. Divided into nine chapters, this volume begins with a discussion of vapor and liquid phase nonidealities and how they are calculated in terms of fugacity and activity coefficients, respectively. It then introduces the reader to the UNIFAC method and how it works, the procedure used in establishing the parameters needed for the model, prediction of binary and multicomponent vapor-liquid equilibria for a large number of systems, the potential of UNIFAC for predicting liquid-liquid equilibria, and how UNIFAC can be used to solve practical distillation design problems. This book will benefit process design engineers who want to reliably predict phase equilibria for designing distillation columns and other separation processes.
