Software Listing: Equilibrium

Uses Simulink to compute Vapor-Liquid Equilibrium diagrams for ethanol-water binary mixture. To compute activity coefficients, program uses Van-Laar Model. This mixture presents a positive azeotrope..

  • Platform: Matlab, Scripts

The program computes the liquid-liquid equilibrium diagrams for a type II ternary systems based on the NRTL model. The ternary mixture: hexane-heptane-methanol is an example of type II systems. The equilibrium diagram is computed at a temperature of 306 K..

  • Platform: Matlab, Scripts

The program computes the liquid-liquid equilibrium diagrams for a type I ternary system based on the NRTL model. The ternary mixture: water-ethylacetate-acetone is an example of type I systems. The equilibrium diagram is obtained at a temperature of 288.15 K..

  • Platform: Matlab, Scripts

Reaction Equilibrium designed as a small and simple simulation tool that manages to illustrate qualitative concepts relating to chemical reaction equilibrium.

Problems in reaction equilibria are a staple of physical chemistry and thermodynamics courses, and their treatment via the formalism of the equilibrium constant is familiar to anyone with training in chemistry or chemical engineering.

While the use of these tools is not difficult to learn, an intuitive understanding of the standard Gibbs energy, enthalpy, and entropy of reaction can be more elusive.

Like everything in thermodynamics, they have their origin in molecular-level behaviors, and thus some understanding of them can be gained by observing molecules "react" while following Newtonian mechanics, and seeing how the emergent behavior can be...

  • Platform: WinOther

ABEW - Acid base equilibrium for Windows. - Single acid or base solution. - Salt hydrolysis. - Mixture of acid + base. - Buffer solution. - Acid base titration (polyprotic acids titration). - 26 types of graphics and data table ABEW can calculate pH, concentrations, equilibrium constants, degree of dissociation and volumes for 34 types of calculation of acid-base equilibriums. Strong and weak , monoprotic, diprotic and triprotic acids. We can print graph and data table for each equilibrium. - Easy and fast to use. User's manual in PDF format..

  • Platform: Windows 7, WinOther, WinVista

A pH Calculator, a Virtual Titrator, a Real Titration Data Analyzer, a Distribution Diagram Generator - that's CurTiPot, the all-in-one freeware to learn, teach and work with chemical equilibrium of acids, bases, salts and buffers at home, classroom, interactive "dry lab" or research laboratory. Features of this powerful suite of MS Excel spreadsheets embrace: - pH calculation of any aqueous solution of strong and weak acids, bases, salts, buffers and mixtures of up to 7 polyprotic systems (>40 species), with activity coefficient estimation; - Simulation and overlay of acid-base titration curves of any complexity, with or without random errors in pH and/or volume.

  • Platform: Win2000, Windows Server, WinOther

A pack of games, based on swinging, on efforts to reach balance, on interesting equilibrium effects and such..

  • Platform: WinOther

Vapour Liquid Equilibrium (VLE) is a program written in java for simulation of various VLE calculations like bubble point, dew point, flash point, Pxy and Txy diagrams, etc. It supports user defined methods for activity and fugacity calculations..

  • Platform: Linux, Mac OS X, Unix, WinOther

The program computes the tie lines, the operating and mixing points and the number of equilibrium stages using the Hunter and Nash graphical method of a liquid-liquid extraction problem. One feed of acetic acid (35 wt %) in water which flow rate = 1000 kg/hr is extracted using a solvent consisting of pure isopropyl ether which flow rate = 1475 kg/h. We find that 5.35 equilibrium stages are needed to achieve the raffinate product requirement of 10 wt % acetic acid composition. This example is treated in the book by Phillip C. Wankat, Separations in Chemical Engineering, Equilibrium Staged Separations, Prentice Hall, 1988.

  • Platform: Matlab, Scripts

This being a very basic program for the demonstration of bubble and dew point calculations of a ideal binary VLE mixture obeying Raoult's. The basic purpose of this program is to demonstrate VLE P-T-x-y calculations of a ideal binary mixture and to get related data in graphical form for any such a system. It uses Raoult's law for the VLE calculations, the Antoine equation for the calculation of pure component vapour pressures at different temperatures and the Dalton's law for the calculation of total pressure of the vapor in equilibrium with the liquid. Further modifications required are: 1)It can be modified further for non-ideal mixtures by introducing the activity coefficients of the components.

  • Platform: Matlab, Scripts

This GUI uses a constant relative volatility (alpha) to estimate the equilibrium curve. From there, the GUI uses the "McCabe and Thiele Graphical Method" to estimate the ideal number of plates in the column. A reference is provided in the GUI: look in Help/About. Comments, suggestions or bugs, please write to cgelmiREMOVE@gmail.com.

  • Platform: Matlab, Scripts

The programs compute the vapor-liquid diagram of an ethane-benzene mixture at 25dlT-C and 175dlT-C. This binary mixture exhibits a peculiar behavior because the volatilities of ethane and benzene are very different. We use the SRK equation of state to compute equilibrium constants. This problem was presented in Thermodynamique, Application au GdoTenie Chimique et doT l'Industrie PdoTetrolidodure by Jean Vidal, Technip, 1997..

  • Platform: Matlab, Scripts

In the program, we obtain equilibrium constants, compressibility factors, molar volumes and densities using the Soave-Redlich-Kwong equation of state. We find the same results as those given by Henley and Seader in Equilibrium-Stage Separation Operations in Chemical Engineering, Wiley, 1981 (example 4-10 page 175). A paper on the SRK EOS is available at these links: http://library.wolfram.com/infocenter/Articles/6871/ http://www.jstage.jst.go.jp/article/jcej/4...40_534/_article.

  • Platform: Matlab, Scripts

Simulink implementation of a General Economic Equilibrium with 2 firms and 2 consumers. The model features two general level-2 masked s-functions. The first one implements the consumer, which maximizes his utility function, and the second implements the firm, which maximizes its profit. This was taken from: "Economics: a Mathematical Introduction", C.J. McKenna and Ray Rees, Chapter 14..

  • Platform: Matlab, Scripts

PTTD Number of Theoretical Plates by McCabe-Thiele method for distillation towers of binary mixtures - Interactive changes using McCabe-Thiele diagram - Full printable reports - Vapor equilibrium using relative volatility or VLE data table - 47 VLE data tables included - Easy and fast to use

- User's manual in PDF format.


.

  • Platform: Win7 x32, Win7 x64, WinOther, WinVista, WinVista x64

MCTH Number of Theoretical Plates by McCabe-Thiele method for distillation towers of binary mixtures - Interactive changes using McCabe-Thiele diagram - Full printable reports - Vapor equilibrium using relative volatility or VLE data table - 47 VLE data tables included - Easy and fast to use. User\'s manual in PDF format..

  • Platform: Win7 x32, Win7 x64, WinVista, WinVista x64, WinXP
  • Kintecus
  • License: Shareware
  • Price: 645
  • Rating

The Kintecus simulation software has been cited in many peer reviewed journals: J. Phys. Chem.A, PCCP, J. Biol. Chem., Plas. Chem. Plas. Proc., Int. J. Chem. React. Tech, Arch. Bio. Chem. Bio. Phys., THEOCHEM, etc. It is an Industrial Strength/Research Grade chemical modeling, chemical kinetics and equilibrium software for simulation of combustion, nuclear, biological, enzyme, atmospheric and many other processes via a graphical interface. Kintecus features the ability to quickly run Chemkin models. Multiple Chemkin/freestyle thermodynamic databases can be used. Isothermal/Non-isothermal, adiabatic constant volume, constant pressure (variable volume) can easily be modeled with a flick of a switch.

  • Platform: Win2000, WinXP, Win7 x32, Win7 x64, Windows 8, Windows 10, WinServer, WinOther, WinVista, WinVista x64

The Real Option Valuation template combines a set of option pricing tools to quantify the embedded strategic value for a range of financial analysis and investment scenarios. Traditional discounted cash flow investment analysis will only accept an investment if the returns on the project exceed the hurdle cost of capital rate. This is a worthwhile exercise as input for valuing real options; however it ignores any strategic options that are commonly associated with many investment decisions. Real option valuation provides the ability to identify what options might exist in a business proposal and the tools to estimate the quantification of them.

  • Platform: Mac OS X, Win2000, Win7 x32, Win7 x64, WinOther, WinVista, WinVista x64

DTTF Number of Theoretical Plates by McCabe-Thiele method for distillation towers of binary mixtures - Interactive changes using McCabe-Thiele diagram - Full printable reports - Vapor equilibrium using relative volatility or VLE data table - 47 VLE data tables included - Easy and fast to use. - User's manual in PDF format..

  • Platform: WinOther

SDEN - Distillation simulator of binary mixtures from 1 to 6 consecutive stages - Rayleigh equation - Relative volatility or VLE tables - Graphs and table of results - 10 Vapor-Liquid equilibrium tables included - User's Manual.

  • Platform: WinOther

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