Author: Kanrakot Thamanavat
Publisher:
ISBN:
Category : Carbon dioxide
Languages : en
Pages :
Book Description
The objectives of this work are to measure phase equilibria in the carbon dioxide + pyrrole system and to correlate and predict the phase behavior of this system with a thermodynamic model. This binary system is of interest due to the growing applications of supercritical carbon dioxide as a solvent or reaction medium for pyrrole. Polypyrrole is an electrically conducting polymer of interest in a number of applications such as anti-static coatings. Pyrrole has also been used as a reactant in enzymatic reaction. Knowledge of the phase behavior of carbon dioxide + pyrrole system is therefore necessary for evaluating optimal conditions and feasibility of such applications. Phase equilibria in the carbon dioxide + pyrrole system were measured at 313 K, 323 K, and 333 K using a synthetic method. Liquid-vapor (LV) phase behavior and liquid-liquid (LL) phase behavior were observed. The pressure in the experiments ranged from 84 to 151.1 bar. The Patel-Teja equation of state and the Mathias-Klotz-Prausnitz mixing rule with two temperature independent parameters was able to correlate the phase equilibrium data satisfactorily and was used to predict the phase behavior at other temperatures. A pressure-temperature diagram was then constructed from these calculations and suggests that the carbon dioxide + pyrrole system exhibit type IV phase behavior in the classification of Scott and van Konynenburg.
High Pressure Phase Equilibria in the Carbon Dioxide + Pyrrole System
Author: Kanrakot Thamanavat
Publisher:
ISBN:
Category : Carbon dioxide
Languages : en
Pages :
Book Description
The objectives of this work are to measure phase equilibria in the carbon dioxide + pyrrole system and to correlate and predict the phase behavior of this system with a thermodynamic model. This binary system is of interest due to the growing applications of supercritical carbon dioxide as a solvent or reaction medium for pyrrole. Polypyrrole is an electrically conducting polymer of interest in a number of applications such as anti-static coatings. Pyrrole has also been used as a reactant in enzymatic reaction. Knowledge of the phase behavior of carbon dioxide + pyrrole system is therefore necessary for evaluating optimal conditions and feasibility of such applications. Phase equilibria in the carbon dioxide + pyrrole system were measured at 313 K, 323 K, and 333 K using a synthetic method. Liquid-vapor (LV) phase behavior and liquid-liquid (LL) phase behavior were observed. The pressure in the experiments ranged from 84 to 151.1 bar. The Patel-Teja equation of state and the Mathias-Klotz-Prausnitz mixing rule with two temperature independent parameters was able to correlate the phase equilibrium data satisfactorily and was used to predict the phase behavior at other temperatures. A pressure-temperature diagram was then constructed from these calculations and suggests that the carbon dioxide + pyrrole system exhibit type IV phase behavior in the classification of Scott and van Konynenburg.
Publisher:
ISBN:
Category : Carbon dioxide
Languages : en
Pages :
Book Description
The objectives of this work are to measure phase equilibria in the carbon dioxide + pyrrole system and to correlate and predict the phase behavior of this system with a thermodynamic model. This binary system is of interest due to the growing applications of supercritical carbon dioxide as a solvent or reaction medium for pyrrole. Polypyrrole is an electrically conducting polymer of interest in a number of applications such as anti-static coatings. Pyrrole has also been used as a reactant in enzymatic reaction. Knowledge of the phase behavior of carbon dioxide + pyrrole system is therefore necessary for evaluating optimal conditions and feasibility of such applications. Phase equilibria in the carbon dioxide + pyrrole system were measured at 313 K, 323 K, and 333 K using a synthetic method. Liquid-vapor (LV) phase behavior and liquid-liquid (LL) phase behavior were observed. The pressure in the experiments ranged from 84 to 151.1 bar. The Patel-Teja equation of state and the Mathias-Klotz-Prausnitz mixing rule with two temperature independent parameters was able to correlate the phase equilibrium data satisfactorily and was used to predict the phase behavior at other temperatures. A pressure-temperature diagram was then constructed from these calculations and suggests that the carbon dioxide + pyrrole system exhibit type IV phase behavior in the classification of Scott and van Konynenburg.
Experimental Phase Behavior in High Pressure Carbon Dioxide-aromatic Systems and the Prediction of Such Behavior Using a New Quartic Equation of State
Author: Rahoma Sadik Mohamed
Publisher:
ISBN:
Category : Aromatic compounds
Languages : en
Pages : 166
Book Description
Publisher:
ISBN:
Category : Aromatic compounds
Languages : en
Pages : 166
Book Description
Phase Equilibria with Supercritical Carbon Dioxide
Author: Mercedes G. Montalbán
Publisher: Intechopen
ISBN: 9781803565033
Category :
Languages : en
Pages : 0
Book Description
We are living in a critical time, both for humanity and the planet, which has led us to look for more sustainable formulas to interact with the environment. One of the important changes in the design and operation of chemical processes is the search for environmentally friendly technologies. Supercritical carbon dioxide has been revealed as a promising environmentally friendly solvent that is energy efficient, selective and capable of reducing waste, making it a promising alternative to conventional organic solvents. However, reliable and versatile mathematical models of phase equilibrium thermodynamics are needed for the use of supercritical carbon dioxide in process design and viability studies. This book reviews experimental procedures for obtaining high-pressure phase equilibria data and describes the phase diagrams of binary mixtures and some thermodynamic models capable of determining the conditions of phase equilibria at high pressures. These concepts are applied to the components of the transesterification reaction of rac-2-pentanol with a vinyl ester, which is important in the pharmaceutical industry because (S)-2-pentanol can be obtained as a reaction product. This product is a key intermediate in the synthesis of drugs against Alzheimer's disease.
Publisher: Intechopen
ISBN: 9781803565033
Category :
Languages : en
Pages : 0
Book Description
We are living in a critical time, both for humanity and the planet, which has led us to look for more sustainable formulas to interact with the environment. One of the important changes in the design and operation of chemical processes is the search for environmentally friendly technologies. Supercritical carbon dioxide has been revealed as a promising environmentally friendly solvent that is energy efficient, selective and capable of reducing waste, making it a promising alternative to conventional organic solvents. However, reliable and versatile mathematical models of phase equilibrium thermodynamics are needed for the use of supercritical carbon dioxide in process design and viability studies. This book reviews experimental procedures for obtaining high-pressure phase equilibria data and describes the phase diagrams of binary mixtures and some thermodynamic models capable of determining the conditions of phase equilibria at high pressures. These concepts are applied to the components of the transesterification reaction of rac-2-pentanol with a vinyl ester, which is important in the pharmaceutical industry because (S)-2-pentanol can be obtained as a reaction product. This product is a key intermediate in the synthesis of drugs against Alzheimer's disease.
Phase Equilibria with Supercritical Carbon Dioxide
Author: Mercedes G. Montalbán
Publisher:
ISBN: 9781803565057
Category : Liquid carbon dioxide
Languages : en
Pages : 0
Book Description
Publisher:
ISBN: 9781803565057
Category : Liquid carbon dioxide
Languages : en
Pages : 0
Book Description
TWO-PHASE AND THREE-PHASE EQUILIBRIA IN THE SYSTEM: CARBON-DIOXIDE - METHANE.
Author: HAROLD GEORGE DONNELLY
Publisher:
ISBN:
Category :
Languages : en
Pages : 540
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 540
Book Description
High-pressure Phase Equilibrium Data for Systems Containing Carbon Dioxide, Ω-pentadecalactone, Chloroform and Water
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
High Pressure Multi-phase Equilibrium of Carbon Dioxide with Organic Solids in Binary and Ternary Systems
Author: Gary Leon White
Publisher:
ISBN:
Category : Carbon dioxide
Languages : en
Pages : 356
Book Description
Publisher:
ISBN:
Category : Carbon dioxide
Languages : en
Pages : 356
Book Description
Carbon Dioxide Equilibria and Their Applications
Author: James N. Butler
Publisher: Routledge
ISBN: 135146258X
Category : Science
Languages : en
Pages : 276
Book Description
Carbon dioxide, bicarbonate ion, and carbonate ion comprise the most important acid-base system in natural waters, and the equilibria between them regulate the pH of seawater, as well as most rainwater, stream water, river water, and groundwater. Carbon Dioxide Equilibria and Their Applications provides a clear, compact presentation of this topic,
Publisher: Routledge
ISBN: 135146258X
Category : Science
Languages : en
Pages : 276
Book Description
Carbon dioxide, bicarbonate ion, and carbonate ion comprise the most important acid-base system in natural waters, and the equilibria between them regulate the pH of seawater, as well as most rainwater, stream water, river water, and groundwater. Carbon Dioxide Equilibria and Their Applications provides a clear, compact presentation of this topic,
Three-phase Equilibria of the Ethane Carbon Dioxide System
Author: James H. McMicking
Publisher:
ISBN:
Category :
Languages : en
Pages : 158
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 158
Book Description
Phase Equilibria and Other Physicochemical Aspects of Interest for Enzymatic Reactions in Near-critical Carbon Dioxide
Author: Rob Matheus Maria Stevens
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 248
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 248
Book Description