Separations

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...

Ionic Liquids for Aromatic Extraction: Are They Ready?

December
2006
Reactions and Separations
Sachin T. Anjan
Ionic liquids have already moved into the commercial arena as reaction solvents. This article compares them to conventional solvents and examines their potential for the extraction of benzene, toluene and xylene from reformate.

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.

Bioseparation Basics

October
2014
Back To Basics
Roger G. Harrison
Bioseparations are critical to the field of biochemical engineering. Each bioseparation process must be tailored to separate, purify, or recover the desired bioproduct. This article gives an introductory overview of filtration and chromatography — two key bioseparation unit operations.

Optimizing Crystallizer Scaleup

June
2003
Fluids and Solids Handling
Wayne Genck
Explore how mixing parameters impact the crystallization process and recommend ways to improve the likelihood of successful scaleup. The concepts of nucleation and growth, types of mixing, design considerations, agitator parameters and scaleup...

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...

Bridge the Gap with Semicontinuous Distillation

August
2001
Reactions and Separations
James R. Phimister ,  Warren D. Seider
This processing strategy combines the advantages of batch and continuous operation, providing flexibility and efficiency in a single design.

Design Principles for Liquid-Liquid Extraction

November
2015
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.

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...

Understand the Basics of Membrane Filtration

April
2013
Back To Basics
Hua Wang, Hongyi Zhou
Membrane filtration is an integral part of many industrial processes, as it is often more environmentally sustainable and cost-effective than other separation technologies

Modeling Reactive Absorption

January
2009
Reactions and Separations
Eugeny Kenig, Panos Seferlis
Effective modeling of reactive absorption enhances system design, improves experiment planning for parameter-estimation, and facilitates process operation and control decisions.

Accurately Predict the VLE of Thiol-Hydrocarbon Mixtures

September
2004
Reactions and Separations
Wayne Sim, Vince Tassone, Chorng H. Twu
This methodology can be used to calculate vapor-liquid equilibria (VLE) between thiols and hydrocarbons at any composition, temperature or pressure to improve gasoline fractionation processes.

Producing Nitrogen via Pressure Swing Adsorption

June
2012
Reactions and Separations
Svetlana Ivanova, Robert Lewis
Pressure swing adsorption (PSA) can be a cost-effective method of onsite nitrogen generation for a wide range of purity and flow requirements.

Real World Modeling of Distillation

July
2003
Reactions and Separations
Harry Kooijman, Rajamani Krishna , Ross Taylor
Previously, simulations based on nonequilibrium, or rate-based, models were considered impractical due to their complexity. However, with ever-increasing computing power, these simulations are not only feasible, but in some circumstances they should...

Using Chromatography to Separate Complex Mixtures

December
2010
Back To Basics
Nathalie Fraud
Purifying high-value mixtures, such as pharmaceuticals, can be an expensive undertaking. Choosing the correct chromatography methods can improve purity and reduce processing time and cost.

Streamlining Crystallization Process Design

January
2004
Fluids and Solids Handling
Christianto  Wibowo, Lionel O'Young, Ka M. Ng
Use phase diagrams to develop reliable crystallization processes quickly and cost effectively.

Developing Crystallization Processes

March
2011
Reactions and Separations
Christianto Wibowo
With solid-liquid equilibrium as its foundation, this systematic approach makes it easy to identify operating regions and theoretical yield to maximize the desired product.

Understanding Crystallization and Crystallizers

October
2006
Fluids and Solids Handling
Lionel O'Young, Ketan D. Samant
Gain qualitative insight into the basic mechanisms of crystallization, the principles of crystallizer operation, and the ways in which these concepts relate to the selection and application of the various crystallizer configurations in industrial...

Evaluating Distillation Column Performance

June
2013
Reactions and Separations
AIChE’s Equipment Testing Procedures Committee, Tray and Packed Columns Procedure Revision Subcommittee
Follow these guidelines to assess the capacity and efficiency of distillation columns containing trays or packing.

Molecular Sieve Cracked Gas Dryer Tutorial

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 13, 2016 - 3:40pm-4:55pm
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
Tuesday, April 12, 2016 - 4:30pm-5:00pm
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...

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.

Democratizing Fossil Fuel Conversion

Conference Presentation
AIChE Annual Meeting
Tuesday, November 10, 2015 - 12:30pm-3:00pm
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
Monday, November 9, 2015 - 8:30am-11:00am
The development of cost and energy efficient water purification systems, specifically desalination systems, is one of the most critical engineering...

Recent Trends in the Removal of Sulfate through Precipitation

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 29, 2015 - 10:15am-10:45am
Removal of Sulfate through Precipitation Many mines have very high sulfate concentrations in their waste water due to the sulfides in the ore...

Fundamentals of Amine Systems Design

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 29, 2015 - 8:00am-8:30am
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
Tuesday, April 28, 2015 - 3:30pm-4:00pm
Advances in computing speed continue to enable dynamic modeling of ever increasing complexity. This includes simulation of non-routine conditions...

Boosting Returns through Advanced Hydrogen Solutions in Refineries

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 28, 2015 - 2:30pm-3:00pm
Modern high complexity refining landscape involves increasing proportion of ‘opportunity crudes’ processing and widened bottom-of-the-barrel...

Cost Effective Control of Red Oil in Caustic Tower Systems

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 28, 2015 - 9:00am-9:30am
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
Tuesday, April 28, 2015 - 8:30am-9:00am
For over forty years, the petrochemical industry has used Liquid-Liquid Extraction (LLE) for the Aromatics Recovery. Even though Extractive...

Thermogravimetic Analysis and Fast Pyrolysis of Milkweed

Conference Presentation
AIChE Annual Meeting
Wednesday, November 19, 2014 - 10:45am-11:00am
Pyrolysis characteristics and fast pyrolysis of Milkweed was carried out in a thermogravimetric analyzer and a bubbling fluidized bed reactor. Total...

Imparting Ionic Liquid Character to Commodity Chemicals

Conference Presentation
AIChE Annual Meeting
Tuesday, November 18, 2014 - 5:15pm-5:30pm
We have observed that certain bulky salts that are commonly used to synthesize ionic liquids are also highly soluble in a number of polar organic...

CO2 Capture Performance of Imidazole-Based Solvents

Conference Presentation
AIChE Annual Meeting
Monday, November 17, 2014 - 12:45pm-1:15pm
ION Engineering, The University of Alabama and other partners are currently building a slipstream-scale process for post-combustion CO2 capture at an...

Impact of DDT on FPSO Explosion Risk Assessment

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 2, 2014 - 10:45am-11:15am
In recent explosion accidents on onshore petrochemical facilities, it has been concluded that a deflagration-to-detonation-transition (DDT) took...

Single Use Centrifuge- CHO Clarification

Conference Presentation
AIChE Annual Meeting
Thursday, November 7, 2013 - 4:00pm-4:30pm
Abstract Text: The large scale economic collection of proteins is an important problem for the Biotechnology industry. Generally , proteins are...

Scaling-Up in Supercritical Fluid Chromatography

Conference Presentation
AIChE Annual Meeting
Thursday, November 7, 2013 - 9:45am-10:15am
Supercritical fluid chromatography (SFC) is already recognized as the method of choice for the preparative separation of chiral molecules in...

Reactivity of Biopolymers in Ionic Liquids

Conference Presentation
AIChE Annual Meeting
Wednesday, November 6, 2013 - 12:45pm-1:15pm
Ionic liquids are gaining increasing acceptance as novel solvents for chemical transformations. This has included a recent focus on the use of ionic...
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