AIChE

Ace the Interview

November
2009
Career Catalyst
Lisa L. Walker
Few situations can be more anxiety-provoking than a job interview. Although the skills required for a successful interview may not come naturally, they can be honed — with practice, introspection, and informed preparation.

Stem Cell Engineering 101

November
2010
SBE Special Section
Jonathan Monk
Stem cells are poised to transform medical treatments for a host of diseases and malignant conditions. Translating stem cell research into clinical therapies, disease models, and drug-screening platforms will require a combination of sound science...

Institute News

May
2012
Institute News
Read the latest Institute News reported by CEP.

How Does Your $alary Stack Up?

August
2002
Special Section
Betty Feehan
The median salary among chemical engineers is $84,000, and annual raises are averaging 4.8%.

Easily Assess Complex Safety Loops

March
2001
Instrumentation
Lawrence  Beckman
Many safety instrumented systems rely on dissimilar redundant field devices, and this can complicate required analyses. These equations will enable field personnel to handle such situations readily.

Success Strategies for the Mid-Career Engineer

August
2001
Career Catalyst
Elizabeth  Feehan
Here's how to take stock of your career and identify and explore a wide range of opportunities so you can decide where you want to go and develop a career plan for getting there.

Follow These Best Practices in Steam System Management

December
2001
Heat Transfer
David  Jaber, Fred L. Hart, Gilbert A. McCoy
These tips on how to improve steam generation, distribution and recovery can help a plant to increase its steam system efficiency by as much as 20-30%.

Fermentation Goes Large-Scale

January
2003
Special Section
Alex Patist, Aristos Aristidou , J. J. Hahn , Pim van Hoek
Designing an economically competitive and environmentally sustainable fermentation route means considering the downstream separations needed to capture the final product during the initial process design.

Apply Solubility Theory for Process Improvements

March
2004
Reactions and Separations
Michael J. Gentilcore
For solid compounds that dissolve in solvents but do not ionize, the thermodynamics of solubility can provide valuable predictions and insights.

Rotating Equipment

October
2005
Fluids and Solids Handling
Kazim Akhtar
Protect compressors and turbines by using piping strainers and following the line procedures outlined in this article.

Ionic Liquids for Aromatic Extraction: Are They Ready?

December
2006
Reactions and Separations
Sachin T. Anjan
Ionic liquids have already moved into the commercial arena as reaction solvents. This article compares them to conventional solvents and examines their potential for the extraction of benzene, toluene and xylene from reformate.

A Renewable Route to Propylene Glycol

August
2007
News Feature
Suzanne Shelley
Rapid expansion in biodiesel production has spurred a bumper crop of competing processes to turn byproduct glycerin into propylene glycol.

Form Nanoparticles via Controlled Crystallization

October
2008
Reactions and Separations
Robert J. Fisher, Thomai Panagiotou
This continuous bottom-up approach allows precise control of the crystallization process to achieve size, distribution and quality goals, as well as realize the benefits of process intensification.

Apply Process Integration to Environmental Impact Assessment

February
2009
Environmental Management
Ahmed Abdel-Wahab, Eva M. Lovelady, Hassan E. Alfadala, Mahmoud M. El-Halwagi, Patrick Linke
This approach provides valuable insights early in the design process and systematizes the design effort, while reconciling process objectives with environmental constraints.

Reshaping the Structure of Fluidized Beds

July
2009
Fluids and Solids Handling
J. Ruud van Ommen, John Nijenhuis, Marc-Olivier Coppens
Adding structure to a gas-solid fluidized-bed reactor changes the system’s hydrodynamics and can improve performance.

The Reference Process Demystified

January
2010
Career Catalyst
Lisa L. Walker
The people you identify as references in your job search act as your ambassadors to a potential employer. Choosing references who can paint a clear picture of your strengths and potential can be a decisive advantage in your employment campaign.

Minimize Mechanical Integrity Budget Battles

February
2011
Safety
Daniel A. Long, P.E., Jack McCavit
Chemical processing and manufacturing plants must ensure the mechanical integrity of their equipment. These strategies and tactics can make doing so easier when budget issues arise.

Designing Dust Collectors

September
2011
Fluids and Solids Handling
Greg Mehos, P.E.
To assure reliable and safe operation of a dust collector, apply the basic principles of chute and hopper design — which are based on the dust's fundamental flow properties.

Reduce Costs with Dividing-Wall Columns

May
2002
Reactions and Separations
Dennis O'Brien, Douglas A. Stewart, James W. Harris, Michael A. Schultz, Mohamed S.M. Shakur, Steven P. Rosenblum
These distillation columns can significantly reduce capital and energy expenses vs. conventional multicolumn arrangements.

Can We Believe the Simulation Results?

October
2002
Reactions and Separations
Henry Z. Kister
Be careful of these key issues that may generate differences between a distillation-tower simulation and its actual performance. Simulations do not always square with nuts-and-bolts reality.

Working with Non-Ideal Gases

March
2003
Fluids and Solids Handling
Jimmy Peress
Here are two proven methods for predicting gas compressibility factors.

The G-Value for Agitator Design: Time to Retire It?

March
2007
Fluids and Solids Handling
Gregory T. Benz
This commonly used number does not correctly address the influence of viscosity, and has no relationship to performance parameters such as fluid velocity and blend time. This article recommends actual measures of agitator performance that should be...

Deciphering the Mechanisms of Therapeutic Protein Production

October
2007
SBE Special Section
Christoph L. Bausch, Daniel W. Allison, Kevin J. Kayser, Matthew V. Caple, Trissa Borgschulte
Demand for therapeutic recombinant proteins will eventually exceed current production capabilities. This is a major driver in further understanding Chinese Hamster Ovary (CHO) cell biology, which is the cell line of choice for producing these...

Choose the Right Elastomer

June
2008
Materials
William M. Stahl
Match a material's performance to process conditions to reduce leaks, improve safety and extend the mean time between failures (MTBF).

Overcoming Obstacles to Innovation

September
2010
Management
Cheryl Perkins, Jeff Lindsay, Mukund Karanjikar
Despite high levels of spending and lofty innovation goals, companies often experience declining productivity. An understanding of the causes and remedies for innovation fatigue can free engineers and their organizations to achieve greater success.

Understand Thermodynamics to Improve Process Simulations

December
2011
Computational Methods
David Hill, Fred C. Justice, P.E.
Selecting a thermodynamic model is an important step in process simulation — one that many engineers overlook. This overview of applied thermodynamics can help you choose the right model for your process.

Use Nitrogen Safely

March
2012
Safety
Dennis Croll, Paul Yanisko
Understanding the potential hazards and taking the proper precautions will allow you to reap such benefits as improved product quality and enhanced process safety.

Size Letdown Lines for Pressure Surges

November
2001
Fluids and Solids Handling
Gianni  Anci
A high-pressure gas flow in a letdown circuit can cause damage to piping and equipment. Here is how to design a system to avoid damage should a pressurized gas flow occur GianniAnci-

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...

Get Your Investment Decisions Right

February
2006
Management
Gerald Bode, Gregory J. McRae, Konrad Hungerbuhler, Reinhard Schomacker
This article describes state-of-the-art investment analysis techniques, shows how and why even reasonably good analyses can lead to bad decisions, and gives guidance on how to avoid mistakes when making investment decisions regarding chemical...

Incorporating Sustainability into Chemical Engineering Education

January
2009
Special Section
Braden R. Allenby, Cliff I. Davidson, Cynthia F. Murphy, David T. Allen
This benchmarking study of the types of courses offered and the material being taught sheds light on what the engineering profession regards as sustainability.

Disarming the Firing Squad

July
2009
Career Catalyst
Kate Wendleton
If thoughts of a layoff keep you up at night, stop wringing your hands and start taking action. Follow this 11-step plan to position yourself for success in these uncertain economic times.

Assessing Competency During the Hiring Process

December
2009
Career Catalyst
Lisa L. Walker
Interviews and references provide insight into what a job candidate has accomplished. Competency assessment helps the employer ascertain how an individual will actually think and behave on the job. <br> <br>

It’s a Gift: Make the Most of Holiday Job-Searching

December
2010
Career Catalyst
David Madison
It is a common misconception that the November–December holiday season is an unproductive time for job-hunting. Smart job seekers take advantage of the unusual opportunities that the season brings — to position themselves for holiday job-search...

Technology Integration Challenges

August
2011
Special Section
Jared P. Ciferno, John J. Marano, Ronald K. Munson
Carbon capture and storage (CCS) could be an important part of the transition to lower-carbon energy sources. However, widespread integration of CCS with existing power-generation plants and technologies — on a commercial scale and in a cost-...

Checking Out the Competition

August
2001
Management
Gary  Street
Develop a winning game plan by following these logical steps to competitive assessment.

Achieving Success

December
2001
Career Catalyst
Slava Thaler
Put these seven principles to work to spell success for your professional and personal life.

Track Condenser Performance

February
2003
Heat Transfer
Brad Buecker
An effective monitoring program can extend equipment life, improve operations, and yield substantial energy savings.

Stay Ahead of Time

October
2003
Career Catalyst
Judi  Hampton
These tips will help you develop time management and delegation skills to make you more efficient and more effective in your job.

Collect and Destroy Emissions Safely

May
2004
Environmental Management
Tony Ennis
Vent collection and destruction systems are complex, and their safety depends on the proper integration of the discrete elements. This article provides guidance on how to achieve that.

Launching a Website for Your Small Business

November
2004
Career Catalyst
Cynthia F. Mascone, Joseph A. Roseti
Here’s how to develop a successful Internet presence without the dedicated web staff and financial resources of a large corporation.

Modeling Accidental Releases

November
2005
Environmental Management
Weiping Dai
This article compares several common dispersion models available in the public domain and offers guidance on selecting the appropriate one for a particular release.

Optimizing the Asset Management of Pumps

May
2006
Asset Management
Deane Horn, Mark Granger
Integrating new advances in smart online pump monitoring and flexible communication technologies can improve pump reliability and performance while reducingcosts.

Improve Catalytic Oxidizer Operation

January
2007
Environmental Management
John C. Bonacci
A catalyst guard bed is a simple, low-cost modification that reduces catalyst-replacement costs, saves natural gas and cuts energy expenses.

Avoid Common Pitfalls When Using Henry's Law

September
2007
Environmental Management
Allan H. Harvey, Francis L. Smith
Here is practical guidance on the use of Henry's law in engineering calculations and how to account for the temperature dependence of the Henry's constant— which is often ignored but which can be crucial for accurate process design.

Evaluating the Risks and Rewards of an Expatriate Assignment

March
2010
Career Catalyst
Lisa L. Walker
The global chemical industry is showing particularly strong growth outside North America. Understanding where opportunities exist — and which are worth taking — can help you decide whether it is time to take your career, and your life, on the road.

Choose the Right Electric Motors for Hazardous Locations

November
2011
Back To Basics
Uriah Van Amerom
Risks associated with operating an electric motor in hazardous areas range from production downtime to injury and death. Learn how to assess the operating environment and select the appropriate motor.

Succeed in Business in the Far East

January
2001
Career Catalyst
Lionel F. Laroche, Susan Morey
Understand what is expected of you when traveling to this burgeioning part of the world.

Select the Right Spray Nozzle

June
2001
Reactions and Separations
Peter  Welander, Terra L. Vincent
Finding the proper nozzle for specific applications doesn't have to be difficult. By applying basic concepts of nozzle technology, you can create a droplet profile that best suits your needs.

Get More Out of Single-Stage Distillation

February
2002
Reactions and Separations
Ernest A. Perkins , Ryan C. Schad 
Try these practical ways to boost capacity, increase product quality or reduce cycle time in batch and continuous systems.

Ease Control Valve Selection

November
2002
Fluids and Solids Handling
Kiran Nair, Liyakat Jaffer, Meredith Chapeaux, Sheetal Patel, Trevor Bishop
With so many types and options available, choosing the right control valve can seem daunting. Selection can be simplified by considering the process fluid, the service requirements, how the various valves function, and seeing how each valve will...

Achieve Best-in-Class Reliability

June
2003
Asset Management
Richard  Beck
An integrated enterprise asset performance management system can help companies to eliminate failures, optimize strategies, and meet intended production targets.
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