Separations

New Materials for Membrane Separations

Mar 13, 2013

Richard Noble

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.

Evaluation of Mercury Capture Technology Using Various Sorbents Injection

Nov 2, 2012

Xiaofei Wang

Coal combustion is a single largest known anthropogenic source for mercury (Hg) emission. Recently, US EPA has proposed Mercury and Air Toxics Standards (MATS) in order to regulate emissions of Hg and other pollutants. Many Hg control technologies have been developed, such as activated carbon...

Aqueous Morpholine As a Potential Post-Combustion CO2 Absorption Solution

Nov 1, 2012

Krishna Mohan Jinka

Due primarily to high cyclic capacity and high absorption rates compared to other methods, aqueous amine based CO 2 capture has gained great interest for application to post-combustion CO 2 capture. While aqueous amines have a long history for acid gas removal, challenges remain for the commercial...

Mass Transfer Evaluation of CO2 Absorption in a Wetted Wall Column

Nov 1, 2012

Reynolds A. Frimpong

The chemical absorption of CO 2 in solvents is considered as one of the mature process options for reducing CO 2 emissions in power plants. Solvents with fast mass transfer rates and high CO 2 carrying capacity are therefore desired and continue to be explored to reduce equipment size and its...

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

Apr 4, 2012

Robert G. Kunz

Abstract Integration of the Rayleigh Equation for batch distillation in closed analytical form has heretofore required that relative volatility (α) be assumed constant. A new technique presented in this paper produces a continuous analytical function for the Rayleigh Equation integral whether α is...

Separation of the Cresol Isomers by a New Technique Combining Distillation and Crystallization

Apr 4, 2012

Lie-Ding Shiau

A new separation technology, called stripping crystallization (SC) or distillative freezing (DF), has been recently developed in our laboratory to separate the mixtures with close boiling temperatures, including the mixed xylenes [1-3] and the benzene/cyclohexane mixture [4]. In principle, SC is...

An Engineering Approach to the Synthesis of Integrated Distillation Schemes for Systems Involving Difficult Separations

Apr 4, 2012

G. T. Polley

An Engineering Approach to the Synthesis of Integrated Distillation Schemes for Systems Involving Difficult Separations D. Jantes Jaramillo, G.T. Polley Dept. of Chemical Engineering, University of Guanajuato, Mexico The separations of iso-pentane and n-pentane and of iso-butane and n-butane are...

The Science of Classifying Solids: Screening Technology

AIChE Webinar

Dec 7, 2011

Karl Jacob

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.

Assessment of Filter Conditioning During Cross-Flow Filtration of Simulated Tank Waste

Oct 18, 2011

Philip P. Schonewill

Crossflow filtration is to be a key process in the treatment and disposal of approximately 60,000 metric tons of high-level waste stored at the Hanford Site in Richland, Washington. Pacific Northwest National Laboratory (PNNL) is assessing filter performance against waste simulant materials that...

Preparation and Testing of Adsorbents for the Separation of Ionic Liquids From HMF

Oct 18, 2011

Yuxiang Rao

HMF is an important chemical product since it has the potential to be used as a feedstock to replace petroleum-derived aromatics for production of a range of specialty chemicals and plastics.In this work, we will demonstrate an economically-viable, ionic liquid catalytic process for conversion of...

Novel Zeolite Membranes for Energy-Efficient Air Dehumidification and Conditioning

Oct 17, 2011

Rong Xing

Traditional vapor compression air conditioners have very high power consumption for cooling of hot and humid air due to condensation of a large amount of water inside the cooler. We have developed a novel zeolite membrane supported on a thin (~50 micrometer thick) porous metal sheet to remove water...

Ionic Liquids: A Potential Role In the Sulfur Family of Thermochemical Cycles

Oct 16, 2011

Nick AuYeung

The Sulfur-family of thermochemical water splitting cycles has already been identified as an ideal application of ionic liquid solvents for SO 2 absorption. 1 Here, ionic liquids are proposed as suitable reaction media in both the Sulfur-Sulfur cycle (a new cycle based upon the Sulfur-Iodine Cycle...

The Design of Advanced Functional Membranes for Bioseparations

Oct 16, 2011

Scott M. Husson

Market demand is increasing rapidly for biotherapeutics such as recombinant proteins, monoclonal antibodies, viral vaccines and plasmid DNA. With the advent of molecular biotechnology and engineered cell lines, upstream production processes have made unprecedented progress in the last decade,...

Chemical Engineering Essentials from Academic Authors - Session Six: Separations - What You Probably Did Not Learn as an Undergraduate

Leadership Development Conference

Apr 20, 2011

Phillip Wankat

Since 40 to 70 % of the cost of most industrial plants is in separations, the field is obviously important. However, because of the large number of different separation operations, it is impossible to cover everything in an undergraduate education.

Solid-Gas Separation: Fundamentals and Applications

AIChE Webinar

Jan 19, 2011

Karl Jacob

This webinar first examines the concept of grade efficiency, a key concept for describing the efficiency of a solids separation device.

Teach Yourself the Basics of Aspen Plus

January, 2011

Aspen Plus is on of the most popular process simulation software programs used industrially and academically. Though the software is available at many corporations and universities, there are no textbooks which are dedicated to teaching the step-by-step use of the software. This book is designed to...

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