Appropriate Placement of Compressors and Expanders

AIChE Spring Meeting and Global Congress on Process Safety
Apr 4, 2012
The term “Appropriate Placement” was introduced in Pinch Analysis during the 1980s to indicate how special unit operations should be correctly...

Introduction to Pinch Analysis

AIChE Webinar
Apr 27, 2011
This webinar introduces the basic principles and tools of pinch analysis and shows how they can be applied in real-world applications.

Success and Prospects in Thermodynamics

AIChE Annual Meeting
Nov 16, 2008
Accurate thermodynamic models are essential to any chemical engineering endeavor. In this presentation, Cummings reviews some of the more important...

Introduction to Solid-Fluid Equilibrium Modeling

Back To Basics
Chau-Chyun Chen, Sheik Tanveer, Yifan Hao
This article introduces the thermodynamic property models that are commonly used in process simulators to perform solid-liquid equilibrium and solid-supercritical fluid equilibrium calculations.

Troubleshooting Distillation Simulation

Reactions and Separations
Stanislaw K. Wasylkiewicz
A tool called azeotrope pressure sensitivity analysis (APSA) can shed light on the dependence of an azeotrope's composition and temperature on changes in pressure.

Understanding Crystallization and Crystallizers

Fluids and Solids Handling
Ketan D. Samant, Lionel O'Young
Gain qualitative insight into the basic mechanisms of crystallization, the principles of crystallizer operation, and the ways in which these concepts relate to the selection and application of the various crystallizer configurations in industrial...

Use Exponential Functions to Correlate Temperature Dependence

Physical Properties
Faruk Civan
Use Exponential Functions to Correlate Temperature Dependence Asymptotic exponential equations may provide a more-accurate or easier-to-use representation of a property’s temperature dependence than commonly used polynomial expressions.

Thermodynamics for the Practicing Engineer

June, 2009
Thermodynamics for the Practicing Engineer, as the title suggests, is written for all practicing engineers and anyone studying to become one. Its focus therefore is on applications of thermodynamics, addressing both technical and pragmatic problems in the field. Readers are provided a solid base in...

A Simple Approach to Vapor Pressure Prediction

Reactions and Separations
Andrew J. DeDoes, Matthew D. Goetz, Michael J. Misovich
This method reproduces the vapor pressure predictions of the Soave-Redlich-Kwong and Peng-Robinson equation of state with a simple Antoine equation that uses constants derived from critical properties and the acentric factor.

Working with Non-Ideal Gases

Fluids and Solids Handling
Jimmy Peress
Here are two proven methods for predicting gas compressibility factors.

Streamlining Crystallization Process Design

Fluids and Solids Handling
Christianto  Wibowo, Ka M. Ng, Lionel O'Young
Use phase diagrams to develop reliable crystallization processes quickly and cost effectively.

Solving Phase Equilibrium Problems

Reactions and Separations
James R. Reinhardt, Terrence L. Chambers
Use this optimization-based approach to analyze multi-component, multi-phase Equilibria.

Apply Solubility Theory for Process Improvements

Reactions and Separations
Michael J. Gentilcore
For solid compounds that dissolve in solvents but do not ionize, the thermodynamics of solubility can provide valuable predictions and insights.

Understand Thermodynamics to Improve Process Simulations

Computational Methods
David Hill, Fred C. Justice, P.E.
Selecting a thermodynamic model is an important step in process simulation — one that many engineers overlook. This overview of applied thermodynamics can help you choose the right model for your process.

Accurately Predict the VLE of Thiol-Hydrocarbon Mixtures

Reactions and Separations
Chorng H. Twu, Vince Tassone, Wayne Sim
This methodology can be used to calculate vapor-liquid equilibria (VLE) between thiols and hydrocarbons at any composition, temperature or pressure to improve gasoline fractionation processes.

Handbook of Polymer Solution Thermodynamics

December, 1993
Created for engineers and students working with pure polymers and polymer solutions, this handbook provides up-to-date, easy to use methods to obtain specific volumes and phase equilibrium data. A comprehensive database for the phase equilibria of a wide range of polymer-solvent systems, and PVT...

Handbook of Aqueous Electrolyte Thermodynamics: Theory & Application

June, 1986
Expertise in electrolyte systems has become increasingly important in traditional CPI operations, as well as in oil/gas exploration and production. This book is the source for predicting electrolyte systems behavior, an indispensable "do-it-yourself" guide, with a blueprint for formulating...
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