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.

Adsorption Basics: Part 2

August
2017
Back To Basics
Alan Gabelman, P.E.
This article focuses on adsorbents, including activated carbon, zeolite molecular sieves, and polymeric adsorbents, as well as ion exchange resins.

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...

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...

AIChE Journal Highlight: Absorption Methods Determine Mass-Transfer Parameters of Packed Beds

August
2017
Journal Highlight
To design and analyze absorber columns, engineers need reliable mass-transfer parameters for rate-based models in process simulations. However, unlike for distillation, no set of standardized measurement methods for absorption have been generally accepted. Mass-transfer parameters measured by different methods at different facilities, or calculated from different correlations, can have significant disparities. Thus, a need exists to improve the precision and accuracy of experimental methods for determining mass-transfer coefficients so that reliable and coherent sets of data can be derived.

Distillation in Practice

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

New Products: August 2017

August
2017
New Products
Engineering Services Cloud-Based SCADA Service Delivers Scalable Support and Upgrades Experion Elevate, a cloud-based real-time process super-visory control and data acquisition (SCADA) system, is a scalable subscription service that enables secure...

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...

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.

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...

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...

Dynamic Simulation of Demethanizer and Chilling Train System

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 2, 2012
The chilling train system is an important part of ethylene plant which is usually combined with demethanizer and a series of flash drums to separate...

July 2017 CEP Preview

July 10, 2017
This month features a special section on solar energy, with a look at concentrating solar thermal (CST), solar thermochemical energy storage (CSP), and more.

Adsorption Basics: Part 1

July
2017
Back To Basics
Alan Gabelman, P.E.
Adsorption can be used to treat waste streams or purify valuable components of a feed. This article describes both equilibrium and mass-transfer considerations, and reviews the fundamentals of adsorption system design.

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...

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,...

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