Mixing

Modeling CO2 Removal via Hollow Fiber Modules

Live Webinar
Live Thursday, August 30, 2018 - 2:00pm-3:00pm
Are you involved in CO 2 removal? Are you focused—like many engineers—on the use of solvents? There’s another method of CO 2 removal using highly selective membranes. Take this webinar to learn more...
Simulation of a mixer equipped with three impellers. The velocity profile is shown using streamlines, arrows, and slice plots.

Mixer Simulations, Modeling Nonideal Reactors and Mixers

Archived Webinar
Apr 4, 2018
Continuous stirred tank reactors, batch reactors, and mixers are frequently used in the consumer product, food, pharmaceutical, and fine chemical industries. Processes using these devices usually...

Fluid Mixing Technology for Operators

eLearning (online) Course
Are you ready to expand your knowledge of mixing theories and improve your performance and results? This course is for you.

Modeling Packed Bed Reactors

Archived Webinar
Oct 19, 2017
Do you work with investigations of packed bed reactors? Are you still modeling using the traditional approach of semi-analytical approximations? Learn why and how to model in the COMSOL software. In...

Mixing and Reaction without Stirred Tanks: Part 2

Archived Webinar
May 31, 2017
Are you working with mixing and reaction processes in stirred tanks? It may be time to switch to pipelines. This is the second part of a two-part webinar series. Click here to also register for Part...

Fundamentals of Laminar Mixing and Applications

Archived Webinar
May 17, 2017
Do you know how to characterize a mixing system for power and blend time? Determine the best geometry for required mixing conditions or product specifications? Tune into this webinar. Join this...

Mixing and Reaction without Stirred Tanks: Part 1

Archived Webinar
Apr 26, 2017
Are you working with mixing and reaction processes in stirred tanks? It may be time to switch to pipelines. This is the first part of a two-part webinar series. Click here to register for Part 2...

Use Modeling to Evaluate Processing Solutions for Heavy Oils

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 2, 2014
The world’s energy industry has followed the availability of easily attainable and economically feasible supplies for the oil segment that has moved...

Mixing for Success in Batch Systems

Archived Webinar
Dec 18, 2013
In this webinar, batch processes that require mixing are discussed and the mixing challenges and opportunities for achieving process success are described. How mixing affects the course of batch...

Reactivity of Biopolymers in Ionic Liquids

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

Mixing and Blending of Solids

Archived Webinar
Oct 30, 2013
This webinar provides an introduction to both the fundamentals of mixing processes and how to assess mixture quality and examine the qualities of industrial powder mixing equipment.

Identifying Mixing Problems

Archived Webinar
Jun 9, 2010
The webinar also covers the simplest, to the most complex, blending problems. In the simplest blending problems, there is one process objective, and one critical process specification.

Storage and Flow of Bulk Solids

Archived Webinar
May 12, 2010
This webinar addresses the fundamentals of the flow and storage of bulk solids, and clearly demonstrates the considerable science behind the design and use of storage vessels for solids.

Introduction to Solids Processing and Particle Technology

Archived Webinar
Jan 20, 2010
This webinar provides an overview to solids processing technology, and highlights some of the issues faced when dealing with bulk solids, including scale-down/scale-up, and effects of particle size.

Inline Mixing Device for Medical Applications

Conference Presentation
AIChE Annual Meeting
November 10, 2009
In the surgical field, the mixing of two combined fluid streams is required to form fibrin glue, used as a tissue sealant or a hemostat. The sealant...

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...

July 2015 CEP Preview

July 6, 2015

In this issue, get tips for selecting sensors for your plant's safety instrumented system (SIS), a guide to mixing, some of the latest development in biological engineering, and much more.

June 2015 CEP Preview

June 16, 2015

Chemical engineers continue to earn more than the average U.S. worker. The median salary of survey respondents is $127,000 — a 5.8% increase over 
the median reported in 2013.

Designing Multistage Agitated Reactors

January
2014
Reactions and Separations
Gregory Benz
This article bridges the gap between theory and practice for the design of continuous-flow mechanically agitated reactors, with a focus on mechanical and hydraulic issues.

Select the Right Impeller

June
2015
Back To Basics
Julian Fasano
The key to effective, efficient mixing is selecting the appropriate impeller.

Tackling Difficult Mixing Problems

August
2015
Fluids and Solids Handling
Dr. David S. Dickey
Some difficult mixing problems cannot be solved, but their impacts can be lessened. Here’s how you can deal with difficult processes or products, misunderstandings about good mixing, and obstacles to improvements.

Determining Torque Split for Multiple Impellers in Slurry Mixing

February
2012
Fluids and Solids Handling
Gregory T. Benz, P.E.
Yield-stress slurries, such as those used in paper, biofuel, and polymer production, can be difficult to mix. This article explains how to determine torque requirements for multiple-impeller slurry-mixing systems to optimize tank geometry and...

Designing Suspension-Mixing Systems

January
2006
Fluids and Solids Handling
Pavel Ditl, Frantisek Rieger
Impeller and vessel geometries are key factors in selecting mixing equipment to efficiently suspend particulate solids in slurries

Agitating Fibrous Materials

June
2010
Back To Basics
Gregory T. Benz
Slurry agitation involves complicated processes. This article presents guidelines for understanding the rheology of cellulosic and other fibrous materials, and outlines a method for scaling up their agitation.

High-Shear Mixers: Still Widely Misunderstood

November
2007
News Feature
Suzanne Shelley
Advanced modeling techniques and improved geometric features are helping designers and users of rotor-stator mixers to demystify these complex devices, and get more consistent predictable results.

How to Scale-Up Mixing Processes in Non-Newtonian Fluids

May
2003
Fluids and Solids Handling
Christopher Henry , Robert J. Wilkens,  Lew E. Gates
This article will describe the relationships that must be understood to scale-up fluid mixing processes in non-Newtonian, power-law fluids. The principles described apply to both close-clearance impellers, such as anchors and helixes, and to open...

Understand Temperature Change in Process Stream Mixing

September
2006
Heat Transfer
Anil K. Mehrotra, Dharmendra Tiwary
The isobaric and adiabatic mixing of process streams can yield an outlet stream temperature that is either in between, higher than, or lower than the inlet stream temperatures. This article uses simulation to explore temperature-change scenarios in...

Find Mixing Success through Failures - Part 1

October
2008
Fluids and Solids Handling
David S. Dickey, Gary K. Patterson
Understanding when and why mixing fails in the laboratory is often the only way of avoiding a similar failure in a production-scale reactor.

Find Mixing Success Through Failures - Part 2

December
2008
Fluids and Solids Handling
David S. Dickey, Gary K. Patterson
Understanding when and why mixing fails in the laboratory is often the only way of avoiding a similar failure in a production-scale reactor. Here we examine mixing in stirred-tank reactors and provide guidance on scale-up.

Optimize Mixing by Selecting the Proper Baffles

February
2002
Fluids and Solids Handling
Julian B. Fasano, Kevin J. Myers, Mark F. Reeder
It is common knowledge that baffles promote better flow in an agitated vessel, but how to apply them and what kind to use take some ingenuity.

Understand the Real World of Mixing

March
2010
Back To Basics
Thomas Post
Most chemical engineering curricula do not adequately address mixing as it is commonly practiced in the chemical process industries. This article attempts to fill in the gaps by explaining flow patterns, mixing techniques, and the turbulent,...
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