Separations

Column Revamps

Conference Presentation
Southwest Process Technology Conference
Thursday, October 3, 2013 - 1:30pm-4:30pm
Distillation and absorption columns sometimes need to be revamped to achieve capacity increases, separation improvements or energy consumption...

Stable Facilitated Transport Membrane For Olefin/Paraffin Separation

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Thursday, May 2, 2013 - 10:00am-10:30am
Currently, the separation of olefins (ethylene, propylene) from paraffins (ethane, propane) on a commercial scale is accomplished almost exclusively...

Challenges and Opportunities in Oil Fields Produced Water Treatment

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, May 1, 2013 - 8:00am-8:30am
Produced water treatment composition varies all over the map and requires specific unit processes and unit operations with each and every site...

Development of Heat Exchangers for Use As Replacement Plates

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 30, 2013 - 4:30pm-5:00pm
Development of Heat Exchangers for Use as Replacement Plates In Distillation Columns: Proof of Concept and Collection of Design Information 2 Graham...

Gas Cleanup Using Elastic Layered Metal-Organic Framework Adsorbents

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 30, 2013 - 9:00am-9:30am
The suitability of elastic layered metal-organic frameworks (ELM) for the removal of carbon dioxide from methane-rich gas mixtures was evaluated...

Removal of Heavy Hydrocarbons from Lean Natural Gas

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 29, 2013 - 2:30pm-3:00pm
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...

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...

Scale-up of SAPO-34 Membranes for CO2/CH4 Separation

Conference Presentation
AIChE Annual Meeting
Monday, October 29, 2012 - 9:30am-10:00am
SAPO-34 membranes have pores with a diameter of approximately 0.38 nm and have the potential to be used for large scale removal of CO 2 impurities...

The Mixed Matrix Membrane Story

Conference Presentation
AIChE Annual Meeting
Monday, October 29, 2012 - 9:00am-9:30am
The talk will highlight the evolution of Mixed Matrix Membranes (MMM), developed in the mid-1980s. The talk will first provide an introduction into...

The Rayleigh Equation Revisited What to Do When Alpha Isn't Constant

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Wednesday, April 4, 2012 - 12:00am
Abstract Integration of the Rayleigh Equation for batch distillation in closed analytical form has heretofore required that relative volatility (α)...

Root Cause Study of Debutanizer Column Operational Upsets

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Tuesday, April 3, 2012 - 12:00am
The NOVA Chemicals Debutanizer Column at the Corunna site experienced operational upsets. Gamma scans revealed that the column had flooded, and upon...

Dynamic Simulation of Demethanizer and Chilling Train System

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
Monday, April 2, 2012 - 12:00am
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...

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...

A Century of Separations: CO2 Recovery: Myth and Legend

Conference Presentation
AIChE Annual Meeting
Thursday, November 20, 2008 - 2:00pm-2:30pm
Carbon dioxide recovery will be the major challenge for the separations community for the foreseeable future. Various separations technologies are...

Ten Distillation Revamp Pitfalls to Avoid

February
2014
Back To Basics
Doug Bouck
Projects aimed at improving distillation column operation may encounter a variety of hurdles. This article looks at ten common problems and provides guidance on how to avoid them.

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.

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

Realistically Predict Capacity and Pressure Drop for Packed Columns

July
2007
Reactions and Separations
Emil Abkar, Khashayar Afshar, Jeffrey Scherffius, Henry Z. Kister
Generalized pressure-drop correlation (GPDC) charts have been the standard for predicting packing flood points and pressure drops. This article guides engineers on the correct and incorrect uses of the GPDC interpolation procedure, and updates the...

Troubleshooting Distillation Simulation

June
2006
Reactions and Separations
Stanislaw K. Wasylkiewicz
A tool called azeotrope pressure sensitivity analysis (APSA) can shed light on the dependence of an azeotrope's composition and temperature on changes in pressure.

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...

Diagnosing Maldistribution in Towers

May
2007
Reactions and Separations
Simon X. Xu
Gamma CAT-scan technology makes possible the collection of much more vital online process information than conventional diagnostic techniques.

Be Smart about Column Design

November
2012
Reactions and Separations
Daniel R. Summers, P.E., Mark Pilling, P.E.
Optimizing distillation equipment and processes can improve both the profitability and the greenness of an operation.

Distillation Troubleshooting

March, 2006
The last half-century of research on distillation has tremendously improved our understanding and design of industrial distillation equipment and systems. High-speed computers have taken over the design, control, and operation of towers. Invention and innovation in tower internals have greatly...

Solid-Liquid Separation: A Guide to Centrifuge Selection

July
2012
Back To Basics
Tom Patnaik
Centrifugation is a necessary step in many pharmaceutical and chemical production processes. These guidelines will help chemical engineers better understand the process of centrifuge selection.

CEP: AIChE Journal Highlight - A New Spin on Separations

September
2012
Journal Highlight
The microelectronics industry has been revolutionized by technologies that boast ever-increasing capabilities in increasingly smaller areas. Now, the ability to pack high functionality into smaller devices is poised to transform the chemical process...

Design and Control of Distillation Systems for Separating Azeotropes

March, 2010
Hands-on guidance for the design, control, and operation of azeotropic distillation systems Following this book's step-by-step guidance, readers learn to master tested and proven methods to overcome a major problem in chemical processing: the distillation and separation of azeotropes. Practical in...
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