AIChE

Succeed at Catalyst Scale-Up

June
2006
Reactions and Separations
Richard Allen, Jeff Braden, Ben Wagner, J. Todd Osbourne, Donald R. Engelbert, William H. Beever, Uday T. Turaga
Follow these principles to reduce the time required for scale-up and commercialization to improve the resource effectiveness of the effort.

Efficient Technology Evaluation

February
2007
Critical Issues
Francesco Citro, Reuel Shinnar
To stay competitive in today's economic climate, rapid and effective assessments of new technologies is a must. Requiring a minimal amount of data, this powerful method can effectively evaluate new ideas and research programs at an early stage...

Understand the Emerging Issue of Vapor Intrusion

October
2007
Environmental Management
Matthew Traister
The migration of vapors from contaminated groundwater and soil into aboveground buildings can adversely affect indoor air quality by creating an exposure pathway that may not have been addressed previously.

Renewable Power: Not Yet Ready for Prime Time

April
2009
Special Section
David E. Gushee, Bernard S. Lee
Before renewable sources such as wind and solar can contribute significantly to the overall energy mix, massive electricity storage is needed to turn the raw power into dispatchable power.

The Role for Biofuels

March
2010
SBE Special Section
Carrie Atiyeh, Tim Eggeman
The advanced biofuels industry is at a critical stage of development and deployment.

Produce Reliable Models with Efficient Meshing

August
2010
Computational Methods
Ed Fontes, Christian Wollblad, Phil Byrne, Henrik von Schenck
Improve your modeling skills to construct accurate, effective meshes that simulate or optimize a process in less time.

Reduce Your Plant’s Water Footprint

April
2011
Critical Issues
David L. Nystuen
Water footprint reduction and water pollution prevention are integral to any environmental sustainability initiative. Use this rigorous, systematic process to conduct a baseline water assessment that integrates water pollution prevention and water...

Learn by Wandering Around

November
2011
Career Catalyst
Ross Topliff
Walking, listening, and learning are three easy steps that promote good communication and can yield high dividends.

Speeding the Design of Bioprocesses

May
2008
SBE Special Section
Sunil Chhatre , Andrew D. Tustian
These experimental and modeling techniques enable the rapid, cost-effective design and scale-up of biopharmaceutical manufacturing in an integrated fashion.

Do More in Less Time

March
2001
Career Catalyst
Robert W. Bly
Ten tips for improving your personal productivity.

Take the Guesswork Out of FRP Corrosion

December
2001
Fluids and Solids Handling
Gunnar Bergman
The lifetime of fiberglass-reinforced plastic equipment and piping often depend upon previous experience. Here's a way to predict and prolong service life.

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...

What's Your Decision Style?

January
2004
Career Catalyst
James D. Weith
Understanding how you and those around you make decisions is a first step in improving interpersonal relationships and team efficiencies.

Steam Trap Troubles?

February
2005
Heat Transfer
Trinath Sahoo
First, prevent problems by selecting the appropriate trap and installing it properly. If problems arise, follow these guidelines for diagnosing and correcting them.

Targeting Material Reuse via Property Integration

August
2005
Environmental Management
Vasiliki Kazantzi , Mahmoud M. El-Halwagi
Material reuse is often governed by the functionalities of the process streams. This new property-based technique creates a pinch diagram that identifies targets for the minimum use of fresh resources and waste discharge, and the maximum integration...

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...

Driving Profitability with Swaps and Exchanges

June
2009
Management
Frank Erzinger
Swap and exchange programs can significantly reduce logistics costs, as well as an organization’s carbon footprint. Despite its potential, the technique is often constrained by commercial, technical and operational concerns.

Developing Screening Cost Estimates

July
2011
Process Development
Richard P. Palluzi, P.E.
Making decisions based on estimates derived from weak data is counterproductive. Use this established methodology to prepare scoping and screening cost estimates for pilot plants quickly and accurately.

Engineering Organs: Heart and Esophagus

December
2007
SBE Special Section
Buddy D. Ratner
The potential for tissue engineering to transform the practice of medicine is enormous. Chemical engineers will play important roles in this revolution.

Supplemental Nanobiotechnology Tables

February
2006
SBE Special Section
These tables offer a snapshot of the many companies, research organizations and universities working in nanotechnology, nanoscience, nanobiotechnology and other variations of the term that has been coined to describe a revolutionary approach to...

Run Clean with Dry Vacuum Pumps

October
2001
Fluids and Solids Handling
Joe  Bays, Jim  Ryans
The use of dry pumps is growing, replacing workhorse steam jets and liquid-ring pumps. Here is a comprehensive selection guide.

Get What's Coming to You

January
2002
Career Catalyst
Kate Wendleton
Here's how to negotiate the best possible severance package.

Stressed?

October
2002
Career Catalyst
Robert W. Bly
Follow these simple techniques to help you reduce stress and tension on the job.

Innovations in Food Processing

March
2003
Fluids and Solids Handling
B. G. Swanson, M. F. San Martín, G. V.  Barbosa-Cánovas
Today's savvy consumers want processed foods to look freshly prepared, while still meeting all safety requirements. Conventional thermal treatments are inadequate to fulfill this demand. New nonthermal techniques, such as pulsed-electric fields, are...

Reduce Dust Explosions the Inherently Safer Way

October
2003
Fluids and Solids Handling
P. R. Amyotte, A. G. Dastidar, Faisal I. Khan
This article is aimed at the development of a framework for dust explosion prevention and mitigation that explicitly incorporates the principles of inherent safety. As distinguished from engineered and procedural safety features, inherent safety...

Understand Flow Patterns in Glass-Lined Reactors

November
2004
Reactions and Separations
Keith E. Johnson , Christopher J. Ramsey, Kevin J. Bittorf, David S. Dickey
Physical modeling and computer simulation provide insights into the performance of a glass-lined reactor.

Biotransformations for a Green Future

October
2005
SBE Special Section
Susan Truesdell
Enzyme and microbial biotransformations offer green chemistry alternatives for performing difficult or non-selective chemical reactions.

Where is the Chemical Engineering Industry Headed?

January
2007
Special Section
John C. Chen
The chemical enterprise is already global - a trend that is almost certain to continue. What does this trend mean for the chemical engineering profession and for the practicing professional?

Selecting Laboratory Reactors

August
2007
Reactions and Separations
Francesco Picciotti, Marcello Picciotti
This article outlines some of the considerations involved in selecting and specifying a reactor system for research and development applications.

Rx for Pharma

March
2009
Critical Issues
Girish Malhotra, P.E.
Chemical engineers could hold the key that helps pharmaceutical companies — facing pressure to control rising drug prices and competition from generics — reduce their manufacturing costs.

Developing a Position on Nuclear Power

July
2010
Special Section
AIChE’s Nuclear Engineering Division recommends expanding the role of nuclear power and closing the nuclear fuel cycle. <br>

Conference Explores Developing Bioeconomy

March
2008
Special Section
Brad Buecker
Infrastructure, biomass conversion, sources of biomass, and environmental and other impacts are some of the challenges facing the commercialization of biofuels.

Purifying Therapeutic Monoclonal Antibodies

May
2008
SBE Special Section
Benedicte Lebreton, Bradley Wolk, Robert van Reis, Nuno Fontes, Roshan Shrestha, Martha Lovato Tse, Jace Fogle, Amy Len, Amit Mehta
Eliminating the affinity chromatography step in the mAb purification process trims equipment requirements, shrinks the plant footprint— and reduces costs.

Optimize Pipeline Design for Non-Newtonian Fluids

March
2002
Fluids and Solids Handling
 Edgar Amaro  Ronces, Cinthya Alejandra Anguilar Guerrero, Alejandro Anaya Durand
Use this graphical method to determine pipe diameter, fluid temperature and pressure drop for laminar and turbulent flow.

Decommissioning Process Plant Facilities

December
2002
Management
Lou Phillips
Whether the plan is to shut down an entire plant, or just a portion of it, a definitive plan must be in place. Here is a step-by-step procedure to guide you through the process.

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...

The Price is Right -- Or Is It?

December
2003
Management
Glen Rosentrater - 
Contractors' quotes often differ significantly -- by up to 30% is not uncommon, and may be legitimate. Here's how to analyze bids to be able to award a fairly priced contract.

Leadership: The Skill Most Needed

June
2004
Career Catalyst
Stanley I. Proctor
Do you have leadership potential? This article explores the differences between leadership and management, the qualities of a good leader, different leadership styles and where they are effective and not effective, and other issues.

Optimizing Batch Operations

January
2006
Reactions and Separations
Kah Loong Choong, Robin Smith
Use this novel method to optimize the operating conditions as they vary through time in batch processes.

Use Cascade Analysis to Optimize Water Networks

July
2006
Environmental Management
Yin Ling Tan, Zainuddin Abdul Manan, Dominic Chwan Yee Foo
This numerical technique for identifying fresh water and wastewater targets eliminates the tedious and time-consuming steps of graphical targeting approaches. Use it to complement the graphical techniques in the design and retrofit of water networks.

Mitigating Global Climate Change Through Power-Generation Technology

November
2007
Critical Issues
Frank Princiotta
With the Intergovernmental Panel on Climate Change set to release its Fourth Assessment Synthesis Report later this month, now is a good time for chemical engineers to take a look at this topic. This article provides a succinct integration of...

Contemplating a New Phase of Your Career

April
2010
Career Catalyst
Lisa L. Walker
Today’s employment environment has altered the concept of “career.” If you are attempting to change jobs or enter a different industry — or even considering a second career — it is important to understand your motivations and proceed with care.

Reduce Risk When Sourcing Abroad

October
2010
Fluids and Solids Handling
Ling Du, Gregory T. Benz
Purchasing lower-cost process equipment from vendors in developing nations can be an attractive proposition in times of economic austerity. When sourcing outside local channels, keep the points discussed here in mind to avoid costly problems that go...

CEP: Update

April
2012
News Update
What We Talk About When We Talk About Carbon Management; New Nanoglue Sticks to Everything; Flash Forward: Light Turns Nanowires into Flexible Web; Fischer-Tropsch Catalyst Converts Biomass into Light Olefins; Old Zeolite Finds New Role in CO2...

Find Mixing Success through Failures - Part 1

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

Control and Optimize Nonlinear Systems

February
2003
Instrumentation
Roberto Z. Tantalean, Andrew C. Burden, Pradeep B. Deshpande
Turbocharging a contrained model predictive controller (CMPC) with fuzzy logic allows CMPCs to be applied over nonlinear systems

Simulating Aqueous Processes

September
2003
Reactions and Separations
Joel B. Christian
Simulation that includes aqueous modeling can also account for full vapor/liquid/solid equilibria modeling, including redox chemistry.

People - The Key to Successful Project Management

September
2004
Career Catalyst
Eldon R. Larsen
While Gantt charts, timelines, budgets, resource constraints, quality challenges, performance measures, and other tools are important, they are neither meaningful nor effective without people.

Beware of Pitfalls of Carbon Dioxide Freezing Prediction

March
2005
Heat Transfer
Steve Chafin , Tim Eggeman
Carbon dioxide freezing in a cryogenic system can result in plugging and other operational problems. This article offers insights into the carbon dioxide freezing phenomenon.

Boost Your Group’s Performance

September
2005
Career Catalyst
Charles Gillard
Working with employees to define “doing a good job” can improve organizational performance as well as employee satisfaction.

Dealing with Climate Change at the Local Level

February
2008
Opinion
Paul A. Jennings
Whatever problems may be caused by climate change, engineers will be expected to solve them.Now is the time to begin addressing the issues at the local and regional scale.

Getting to Win-Win

September
2008
Career Catalyst
Ryland W. Musick Jr., Eldon R. Larsen
Conflict is an almost unavoidable part of life and work, and it can lead to surprisingly constructive opportunities. Here is a discussion of how to manage conflicts— and how to make the most of them when they occur.

Modeling Reactive Absorption

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

Demonstrating CCS Integration

August
2011
Special Section
Nick Irvin, P.E., P.G., Richard A. Esposito
The largest, fully integrated process for separating CO2 from fluegas and compressing it to a supercritical fluid, transporting the CO2 by pipeline, and injecting the CO2 into a saline reservoir is now underway at the Plant Barry generating station...
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