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 1. In this webinar series, you’ll examine how to achieve several mixing and reaction processes in...

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 webinar to update your skills while reviewing the fundamentals of laminar mixing and applications. In 60...

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. This two-part webinar series examines how to achieve in pipelines several mixing and reaction processes...

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.

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 processes as well as the final process results are presented highlighting the pertinent physicochemical...

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.

AIChE Journal Highlight: Microreaction Technology Comes of Age

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...

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.

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...

August 2015 CEP Preview

August 20, 2015
SPECIAL SECTION: ENERGY Natural Gas: Opportunities and Challenges Natural Gas: The Energy Outlook Natural gas production is projected to grow in almost all regions of the world,...

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...

Designing Multistage Agitated Reactors

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.

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...

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...

Select the Right Impeller

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

Tackling Difficult Mixing Problems

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

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

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

High-Shear Mixers: Still Widely Misunderstood

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.

Agitating Fibrous Materials

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.

Understand Temperature Change in Process Stream Mixing

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

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

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

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

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,...

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

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...
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