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Separations

Aqueous Morpholine As a Potential Post-Combustion CO2 Absorption Solution

Nov 1, 2012
Krishna Mohan Jinka
Due primarily to high cyclic capacity and high absorption rates compared to other methods, aqueous amine based CO 2 capture has gained great interest for application to post-combustion CO 2 capture. While aqueous amines have a long history for acid gas removal, challenges remain for the commercial...

The Rayleigh Equation Revisited What to Do When Alpha Isn't Constant

Apr 4, 2012
Robert G. Kunz
Abstract Integration of the Rayleigh Equation for batch distillation in closed analytical form has heretofore required that relative volatility (α) be assumed constant. A new technique presented in this paper produces a continuous analytical function for the Rayleigh Equation integral whether α is...

The Ubiquitous Hydrocyclone Separator: Theory and Practice

AIChE Webinar
Feb 10, 2009
Charles Petty

The hydrocyclone separator, which was invented in 1891 (see E. Bretney, “Water Purifier”, U.S. Patent 453,105) is widely used in process engineering as a classifier, a clarifier, or a thickener.

Be Smart about Column Design

November
2012
Reactions and Separations
Daniel R. Summers, P.E., Mark Pilling, P.E.
Optimizing distillation equipment and processes can improve both the profitability and the greenness of an operation.

Distillation Troubleshooting

March, 2006
The last half-century of research on distillation has tremendously improved our understanding and design of industrial distillation equipment and systems. High-speed computers have taken over the design, control, and operation of towers. Invention and innovation in tower internals have greatly...

Solid-Liquid Separation: A Guide to Centrifuge Selection

July
2012
Back To Basics
Tom Patnaik
Centrifugation is a necessary step in many pharmaceutical and chemical production processes. These guidelines will help chemical engineers better understand the process of centrifuge selection.

CEP: AIChE Journal Highlight - A New Spin on Separations

September
2012
Journal Highlight
The microelectronics industry has been revolutionized by technologies that boast ever-increasing capabilities in increasingly smaller areas. Now, the ability to pack high functionality into smaller devices is poised to transform the chemical process...

The Science of Classifying Solids: Screening Technology

AIChE Webinar
Dec 7, 2011
Karl Jacob

This webinar addresses the basics of screening, examining the fundamentals of screening: grade efficiency calculations, various aspects of probability of particle passage, and screening rate calculations.

The Design of Advanced Functional Membranes for Bioseparations

Oct 16, 2011
Scott M. Husson
Market demand is increasing rapidly for biotherapeutics such as recombinant proteins, monoclonal antibodies, viral vaccines and plasmid DNA. With the advent of molecular biotechnology and engineered cell lines, upstream production processes have made unprecedented progress in the last decade,...

Design and Control of Distillation Systems for Separating Azeotropes

March, 2010
Hands-on guidance for the design, control, and operation of azeotropic distillation systems Following this book's step-by-step guidance, readers learn to master tested and proven methods to overcome a major problem in chemical processing: the distillation and separation of azeotropes. Practical in...

Ionic Liquids

AIChE Webinar
Aug 26, 2009
Joan Brennecke

This webinar will cover the use of Ionic Liquids for both liquid and gas separations, emphasizing how the choice of anion, cation and functional groups can be used to tailor Ionic Liquids for specific separations.

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