Separations

Featured

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.

AIChE Journal Highlight: A Bright Future for RO Water Desalination

June
2017
Journal Highlight
Water scarcity and groundwater contamination have sparked major efforts to preserve and diversify regional water portfolios through water desalination and water reuse. While various approaches exist, reverse osmosis (RO) membrane desalination has...

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...

CEP: News Update

May
2017
News Update
4D Printing Creates Shape-Shifting Materials Scientists at Georgia Institute of Technology and Singapore Univ. of Technology and Design have developed a way to 3D-print objects that can easily change shape when they are heated. The process could...

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

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

Distillation in Practice

Public (classroom) Course
Learn essential distillation techniques and developments and how to apply them to solve difficult distillation problems.

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...

Crystallization Operations

Public (classroom) Course
A practical overview of the basics of crystallization and precipitation and how to apply the fundamentals of crystal growth and nucleation to...

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.

Sponsored Webinar: 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...

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...

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 Technology: Priniciples and Applications - discusses new materials for 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 calculations.

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 specific separations.

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 continuous phase is a liquid and the dispersed phase may be a solid, a gas, or an immiscible fluid...

AIChE Journal Highlight: Microreaction Technology Comes of Age

March
2017
Journal Highlight
Microreaction technology has matured over the past two decades, from simple devices and concepts to diverse commercial equipment and applications. This evolution has occurred in parallel with process intensification efforts aimed at using...

Catalyzing Commercialization: Sour Gas Has a Sweeter Future

January
2017
Catalyzing Commercialization
Many distributed natural-gas-containing resources, which include natural gas, landfill gas, and biogas, contain significant amounts of sulfur (mainly as hydrogen sulfide). The sulfur content in these gases, which can range from several hundred parts per million to several percent, must be reduced to acceptable levels (e.g., 1 ppm for demanding catalytic processes and several hundred ppm for internal combustion engines or boilers) before these gases can be utilized.

Use Downcomer Gamma Scans to Troubleshoot Your Process

January
2017
Reactions and Separations
Henry Z. Kister, Chuck Winfield
Downcomer scanning can provide valuable information to diagnose your tower. In particular, these scans are useful for determining the mechanism of flooding — one of the most common problems encountered in distillation columns. Follow these guidelines to avoid pitfalls.

January 2017 CEP Preview

January 9, 2017
This month CEP looks at troubleshooting, offers a feature on process safety management don'ts (read full text online), looks at air-cooled heat exchanger performance, and much...

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...

November 2015 CEP Preview

November 16, 2015
This month, CEP's cover feature is liquid-liquid extraction, and members and non-members alike can read the full article online. See the preview for more about this month's issue.

May 2016 CEP Preview

May 13, 2016
This month, the CEP cover story takes a look at the advantages of fixed valves, while Back to Basics column gives smart tips for a successful energy assessment.

February 2015 CEP Preview

February 18, 2015
Ethics Examining Your Engineering Responsibility Engineering ethics frequently has nothing to do with technology and everything to do with communication, thought and decision-...

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...

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...

Impact of DDT on FPSO Explosion Risk Assessment

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 2, 2014
In recent explosion accidents on onshore petrochemical facilities, it has been concluded that a deflagration-to-detonation-transition (DDT) took...

Development of Heat Exchangers for Use As Replacement Plates

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 30, 2013
Development of Heat Exchangers for Use as Replacement Plates In Distillation Columns: Proof of Concept and Collection of Design Information 2 Graham...

Removal of Heavy Hydrocarbons from Lean Natural Gas

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 29, 2013
Removal of heavy hydrocarbons, such as C 6 + from natural gas is essential prior to cryogenic liquefaction in order to prevent freeze-out of these...

Root Cause Study of Debutanizer Column Operational Upsets

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 3, 2012
The NOVA Chemicals Debutanizer Column at the Corunna site experienced operational upsets. Gamma scans revealed that the column had flooded, and upon...

Carbon Capture Ready Heavy Oil Extraction and Upgrading

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 3, 2012
Carbon dioxide emissions from heavy oil production are typically higher than that of producing conventional crudes. Ultimately, carbon dioxide...
Subscribe to Separations