Separations

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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.

Pressure Swing Adsorption: A Ubiquitous Gas Separation Technology

Archived Webinar
Aug 6, 2014
This webinar provides an overview of the ubiquitous pressure swing adsorption (PSA) technology. Adsorption is classified as a unit operation in chemical engineering that exploits the ability of a solid surface to concentrate species selectively from a fluid phase onto its surface. Adsorption...

Crystallization Operations

Face-to-Face Course
A practical overview of the basics of crystallization and precipitation and how to apply the fundamentals of crystal growth and nucleation to...

May 2018 CEP Preview

May 18, 2018

This month, brush up on the essentials of continuous evaporation, learn new uses for hydrofoil impellers, enjoy the special section on translational medicine, and more.

Crystallization Process Development

eLearning (online) Course
An in-depth overview of what theories, methods and techniques should be on the radar of every engineer involved in crystallization processes and...

Distillation in Practice

Face-to-Face Course
Learn essential distillation techniques and developments and how to apply them to solve difficult distillation problems.

New Products: April 2018

April
2018
New Products
Filtration and Separations Dust Filter Meets Sanitary Standards The Hygienic Round Top Removal (HRT) filter is a pulse-jet filter designed for dust collection in low-capacity pneumatic conveying systems. The unit has a top-hinged dome and uses snap-...

Technical Entity Trends: A Water Roadmap for Chemical Engineers

April
2018
Technical Entity Trends
Michelle Bryner
Water is one of the most important resources in the chemical process industries (CPI) — presenting both opportunities as well as compliance obligations. It is involved in a broad range of operations, including separations, product recovery,...

Characterizing Adsorbents for Gas Separations

March
2018
Reactions and Separations
Darren Broom
Pressure-swing adsorption (PSA) and temperature-swing adsorption (TSA) separate a specific gas species from a mixture of gases. This article explains how to evaluate the performance of an adsorbent for a given separation.

March 2018 CEP Preview

March 13, 2018

This issue delves into process intensification, modularization in chemical processing, and takes a look at characterizing adsorbents for gas separations—plus much more.

February 2018 CEP Preview

February 15, 2018
Learn how to optimize pilot plant testing for liquid-liquid extractions, analyze the performance of pump networks, get an update on the chemical industry in Hungary, and much more.

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...

Pilot Plant Testing for Liquid-Liquid Extraction

February
2018
Reactions and Separations
Donald Glatz, Brendan Cross, Thomas D. Lightfoot, P.E.
When designing a liquid-liquid extraction column, pilot plant testing generates the data necessary for accurate scaleup to the production rate. This article describes how to optimize pilot plant testing.

Distillation in Practice

eLearning (online) Course
Learn essential distillation concepts including vapor liquid equilibrium, start-up and troubleshooting, and other best practices with this online...

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, are widely used in industry as energy-efficient alternatives to cryogenic or absorptive separation...

Recovering Hydrogen — and Profits — from Hydrogen-Rich Offgas

January
2018
Reactions and Separations
Joanna Benson, Andrew Celin
As demand for industrial-grade hydrogen increases, more facilities are recovering H2 from offgas and selling it. Several recovery technologies are available, each with its own strengths and limitations.

Challenges in the Application of Adsorbent Technologies for Midstream Contaminants Control

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 28, 2017
Adsorbent technologies have been used in the midstream industry for contaminant purification from natural gas. Molecular sieves are the product of choice for the deep dehydration required by Liquefied Natural Gas and midstream facilities. Also, adsorbents can remove other impurities such as carbon dioxide, hydrogen sulfide, mercaptans, and mercury. There are different mechanisms for adsorption, some of which are regenerable and some are not. Advances in adsorbents provides a technology overview and high level guidelines to design, operation, and troubleshooting.

Effectiveness of Water Sprays in Mitigating Toxic Releases

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 28, 2017
Chemical manufacturing operations must consider and prepare for release of toxic chemicals, such as anhydrous ammonia, anhydrous hydrofluoric acid,...

Trace Contaminant Removal in Petroleum Refining Processes

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 27, 2017
Adsorbents are widely utilized for trace contaminant removal in petroleum refining processes, including fluid catalytic cracking, catalytic reforming...

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.

Molecular Sieve Cracked Gas Dryer Tutorial

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 13, 2016
This tutorial provides an overview of adsorption technology. It will cover the following topics: adsorption phenomenon, structure and chemistry of...

Dividing Wall Column - Design for a Retrofit

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 12, 2016
A market opportunity arose for a higher value market for an existing product line if key impurities could be reduced an order of magnitude below...

Hydrates in Ethylene Plant Cold Section

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 12, 2016
Ethylene plants are at risk of hydrate formation due to the very nature of the process: wet hot section followed by high-pressure, cryogenic...

Democratizing Fossil Fuel Conversion

Conference Presentation
AIChE Annual Meeting
November 10, 2015
Do you have a billion dollars? Neither do most of the 6 million companies in the Unites States. In fact, less than 10 companies in the U.S. can...

Water Desalination By Shock Electrodialysis

Conference Presentation
AIChE Annual Meeting
November 9, 2015
The development of cost and energy efficient water purification systems, specifically desalination systems, is one of the most critical engineering...

Fundamentals of Amine Systems Design

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 29, 2015
The Fundamentals of Acid Gas Removal provides an overview and a basic guide to design, operation, corrosion and troubleshooting for amine treating...

Guidelines for Dynamic Modeling of Column Startup

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 28, 2015
Advances in computing speed continue to enable dynamic modeling of ever increasing complexity. This includes simulation of non-routine conditions...

Cost Effective Control of Red Oil in Caustic Tower Systems

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 28, 2015
Cost Effective Control of Red Oil in Caustic Tower Systems Authors: Kyle David Mankin Global Marketing Manager- Petrochemicals P. N Ramaswamy ,...

Advanced Aromatics Recovery Technology with AED-BTX Process

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 28, 2015
For over forty years, the petrochemical industry has used Liquid-Liquid Extraction (LLE) for the Aromatics Recovery. Even though Extractive...

CO2 Capture Performance of Imidazole-Based Solvents

Conference Presentation
AIChE Annual Meeting
November 17, 2014
ION Engineering, The University of Alabama and other partners are currently building a slipstream-scale process for post-combustion CO2 capture at an...

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