Separations Division (SEP)

The SEP division provides technical programs for meetings with coverage of a variety of currently used and novel methods of separation. Division members can exchange knowledge of technical publications, computer programs, databases, separation research centers, networks and programs.

September 2019 CEP Preview

September 13, 2019

This month in CEP, learn about NSF grants, get tips for safe scaleup, learn about planning a plant decommissioning, and much more.

August 2019 CEP Preview

August 15, 2019

This month the future of hydrogen, a look at advances in distillation, uses for dynamic simulations, and much more.

Shortcut Modeling of Natural Gas Supersonic Separation

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 2, 2019
Supersonic separation is a novel technology for natural gas separation. The theoretical design uniquely combines concepts from aerodynamics,...

Tutorial on Adsorption Unit Troubleshooting

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 2, 2019
The cracked gas driers are a reliable unit operation in the ethylene plant. Because issues with adsorption units are rare, the process engineer may...

Distillation Technology: What’s Next?

Back To Basics
José L. Bravo
Distillation is often described as a mature technology that is well understood and established, no longer requiring funding or attention from research and development. This thinking is flawed, as distillation has come a long way in the past three decades and has even more room to grow.

Editorial: Let’s Talk Separations

Cynthia Mascone
Our editorial calendar told me that this issue’s Back to Basics article would cover distillation, but I didn’t know specifically what Liz Pavone, who handles that department, had planned until I got her edited article: “Distillation Technology: What...

Improve Regeneration of Adsorbent Beds

Reactions and Separations
Tom Lessard, P.E., Sarah Skillern
Evaluating adsorbent bed process design and regeneration procedures can provide opportunities for optimization, ultimately reducing operating costs and emissions.

CEP: News Update

News Update
New Report Looks to the Future of Separation Science The National Academies of Sciences, Engineering, and Medicine (NASEM) has released a new report detailing a research agenda for the future of separation science. The memo outlines major...

Avoid Sulfolane Regeneration Problems

Reactions and Separations
Donald F. Schneider
The regeneration of sulfolane, a common extraction solvent, is difficult. With proper attention to design and operation, problems can be minimized.

Advanced Manufacturing Progress: Membranes Are a Flexible Intensification Solution

Advanced Manufacturing Progress
Ignasi Palou-Rivera
Membranes can be used in a diverse array of industries and applications. They are an inherently intensified technology that are typically constructed as small units that can be numbered-up to increase scale. Membranes are an obvious focus area for the RAPID Manufacturing Institute, which is working to further their development and application.

Distillation Technology for Operators

eLearning (online) Course
Gain an understanding of the theory of successful distillation practices. In addition, learn about what actually happens in a column with this online...

Design Principles for Liquid-Liquid Extraction

Reactions and Separations
Joerg Koch, Glenn Shiveler
Many factors must be evaluated when developing a liquid-liquid extraction process. Here are some of the important parameters to consider as you go from laboratory testing to commercial-scale operation.

Modeling Membrane Separation

Archived Webinar
Dec 12, 2018
Are you interested in simulating membrane dialysis? Could you use tools to help you analyze designs, better understand the processes occurring

Distillation Trays as Mechanical Equipment

Archived Webinar
Dec 14, 2016
Further your understanding of the mechanics of vapor-liquid handling on the tray, how trays are laid out and installed, and how this knowledge helps to avoid common problems.

Optimizing Adsorption Process Design and Operation

Archived Webinar
Oct 29, 2014
This webinar describes new model-based approaches that allow the rapid and accurate design and operational analysis of complex adsorption cycles. Periodic adsorption processes, such as PSA or TSA,...

Solid/Liquid Separation: Fundamentals and Applications

Archived Webinar
Jan 15, 2014
This webinar outlines a strategy for process owners and support personnel to guide design and insure tight integration of process properties and objectives with solid-liquid separation technologies.

New Materials for Membrane Separations

Archived Webinar
Mar 13, 2013
In this webinar, Dr. Richard D. Noble - the co-director of the NSF Industry/University Cooperative Research Center for Membrane Applied Science Technology and co-author of Membrane Separations...

The Science of Classifying Solids: Screening Technology

Archived Webinar
Dec 7, 2011
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...

Ionic Liquids

Archived Webinar
Aug 26, 2009
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...

The Ubiquitous Hydrocyclone Separator: Theory and Practice

Archived Webinar
Feb 10, 2009
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. The...
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