AIChE

Don’t Let Baffle Tray Flood Baffle You

July
2011
Reactions and Separations
Matthew Olsson, Henry Z. Kister
Use this new correlation based on window liquid velocity to predict baffle tray capacity.

Getting Started in Social Media

January
2012
Career Catalyst
Loraine Kasprzak
Engineers can derive professional benefits from Facebook, LinkedIn, Google+, Twitter, and other social media. Here is some practical advice on using these tools effectively, whether you are a veteran or a relative novice.

Expanding Horizons

August
2002
Special Section
Irene Kim
Pursuing a wide variety of career options, chemical engineers continue to reinvent the profession.

Analyzing APC Performance

August
2002
Instrumentation
To reap the most benefit from an advanced process control (APC) system, users need to know how to analyze and monitor the APC's performance.

Integrating Single-Use Filtration Systems

January
2003
Special Section
Holly Haughney
Disposable filtration systems are gaiing popularity in the pharmaceutical arena. This article defines the equipment, specifications, applications and potential advantages of single-use filters and ancillary equipment.

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.

Dynamic Capacity Modeling of Product Development

July
2004
Information Technology
Brian E. Hartman, Prashant B. Kokitkar, Jospeh S. Alford Jr.
Avoid large work queues by proactively anticipating the resource needs of your company using dynamic capacity models.

Adopt Integrated Product Teams for Process Development

July
2005
Management
Kelly Seheult , Larry Scotchie, Jeffrey Mueller
The cross-functional IPT approach can be combined with a stage-gate framework and six sigma techniques to improve the effectiveness of process development efforts.

A Strategy for Excellence in Process Development

October
2008
Process Development
Lionel O'Young, Vaibhav V. Kelkar
Here is how to integrate overall process development activities and identify practices that facilitate commercial process development.

Audit Your Emissions Inventory

January
2010
Environmental Management
Jeffrey H. Siegell
Some emissions reports include data that are based on faulty assumptions and methodologies. This article presents an effective approach to auditing your emissions inventory to maximize the representativeness of the reports you submit. <br>

Correlate Data Effectively

February
2011
Computational Methods
Faruk Civan
Follow these nine simple rules to avoid common pitfalls and get better results.

The Flange Factor in Gasket Selection

September
2011
Fluids and Solids Handling
John Crandall, Dave Burgess
Gaskets should be chosen based on service conditions, as well as the type of flanges to be sealed. These principles will help to guide the selection.

Now Hear This

May
2001
Career Catalyst
Robert W. Bly
Understand the listening process and follow these guidelines to become a better listener.

Increasing Employee Productivity

September
2001
Management
Charles  Gillard
Maximize workplace efficiency via implementation of best practices using workflow modeling and automation.

Tune Control Loops for Minimum Variability

January
2002
Instrumentation
Lanny A. Robbins
The Robbins tuning rules can reduce the variability of control loop response to about 60% of that observed with Ziegler-Nichols tuning rules.

Relocating Research Operations

May
2002
Management
Richard P. Palluzi
Such projects require enormous planning, experienced staff, and substantial time and money to complete.

Don't Get Burned Picking Dry-Type Flame Arresters

October
2002
Fluids and Solids Handling
Stanley G. Grossel
These commonly used devices rely on an internal medium to extinguish flame fronts and take the punch out of shock waves, protecting piping, equipment and personnel. Selecting such equipment involves considering the probable type of combustion,...

Develop an Effective Crisis Management Strategy

September
2003
Management
Steve Wilson
A thorough crisis-management plan will enable your organization to respond to a crisis promptly and appropriately. Here's how to develop an effective plan.

How To Be An Expert Witness

October
2004
Career Catalyst
Peter R. Lantos
Here’s what you should know about the litigation process to serve as a successful technical witness.

Streamlining the Validation Process

March
2007
Management
Robert Mackey, Tim Flanigan
Today, validation is no longer an afterthought for the design and construction of a new or renovated process or facility. It is, in fact, recognized as an integral part of the total project. Fully integrated services are now available to ensure a...

Avoid Problems in Process Water Systems

October
2007
Heat Transfer
Marilyn W. Blaschke, Roger D. Metzler
Prevent corrosion, emulsification and fouling by implementing these operational and chemical measures.

Working with Job Search Consultants and Recruiters

October
2009
Career Catalyst
Lisa L. Walker
Search firms and executive recruiters can be powerful allies in a competitive employment environment.This article puts their role in context and provides guidelines on how to work effectively with them.

Designing Four-Pass Trays

April
2010
Back To Basics
Daniel R. Summers
Use this procedure to design four-pass distillation column trays and to balance the vapor/liquid ratio on each tray panel.

Understand the Fundamentals of Centrifugal Pumps

October
2010
Back To Basics
J. Howard Kelly, P.E.
Efficient and reliable pumps can significantly improve a plant’s bottom line. This article reviews important concepts that a chemical engineer must understand and the factors that need to be considered when selecting radial-flow centrifugal pumps.

Learn to Effectively Operate and Maintain Pumps

December
2011
Back To Basics
Daniel Kernan
Centrifugal pumps play a central role in chemical processing. Proper pump operation and maintenance can improve a facility's productivity, reduce downtime, and trim costs.

An Engineer’s Guide to Management of Change

March
2012
Back To Basics
R. Wayne Garland
Using a formal change procedure promotes safe operations and prevents injuries and deaths, and it will also favorably impact the bottom line.

Choose Materials for High-Temperature Environments

February
2001
Materials
Peter  Elliott
High temperatures, stresses, and the presence of elements such as oxygen, sulfur, or the halogens can add up to trouble. Here is how to screen candidate alloys for such service.

Validate Your Engineering Software!

July
2001
Instrumentation
Michael  Tanzio
You really can't guarantee that applications work correctly unless you take specific steps to validate the software.

Applying Six Sigma

July
2002
Management
Yogesh B. Trivedi
By implementing Six Sigma at its ethylene unit, Sasol has been able to recover as much as 65% of the opportunities that could have been lost.

Matching Your Process Constraints Using Dynamic Simulation

December
2003
Information Technology
Miquel A. Alos, Jose J. Macias-Hernandez, Iban Grau
A rigorous dynamic process simulator can be used to evaluate alternative control strategies for an exothermic reacting process in order to improve its safety and product quality.

Forging Career Security

December
2005
Career Catalyst
David Madison
Eight things to do when you’re not job hunting.

Retrofit Water Systems the SHARPS Way

November
2006
Environmental Management
Norrazi Misran, Mohd Hisham Samingin, Zainuddin A. Manan, Sharifah Rafidah Wan Alwi
Use the Systematic Hierarchical Approach for Resilient Process Screening (SHARPS) technique to quickly and systematically isolate cost-effective and affordable water management options prior to design.

Predesign for Pollution Prevention and Control

June
2007
Environmental Management
Palligarnai T. Vasudevan, Gael D. Ulrich
A plant's intrinsic cleanliness is determined during the predesign stage. This article provides guidance for making critical decisions during preliminary design.

Solving Phase Equilibrium Problems

September
2008
Reactions and Separations
Terrence L. Chambers, James R. Reinhardt
Use this optimization-based approach to analyze multi-component, multi-phase Equilibria.

Making the Team: Teams, Teamwork, and Teambuilding

June
2010
Career Catalyst
Eldon R. Larsen
A project team is more than a group of talented professionals. It is an interdependent unit, empowered with understanding, accountabilities and mutual support that permit it to achieve goals — both organizational and personal — more efficiently and...

Computational Science: Enabling Technology Development

January
2011
On The Horizon
Ning Yang, Jinghai Li, Wei Wang, Wei Ge, Chris Guenther, Anthony Cugini, Madhava Syamlal
Computational science will play a key role in accelerating technology development and in the realization of virtual process engineering.

Navigating the Legal Landscape

August
2011
Special Section
Mary Ellen Ternes, Arnold W. Reitze Jr.
A legal framework governing carbon sequestration will need to be put in place before major carbon capture and storage (CCS) projects can get underway. A final rule issued under the Safe Drinking Water Act sets minimum requirements, but this is just...

Update

March
2012
News Update
Updates in this issue include: State of the Union Address Identifies Importance of Manufacturing and Energy to U.S. Economy Scorpions Inspire Tough Surface Nanorods Line Up for Assembly Nanosphere Structure Boosts Light Absorption Zeolite Catalyst...

Biobutanol – A Replacement for Bioethanol?

August
2008
SBE Special Section
Ron Cascone
Ethanol, the leading incumbant biofuel, has several limitations.Butanol overcomes many of these, and holds promise as the next important transportation biofuel.

Hydrogen: Liability or Asset?

September
2002
Reactions and Separations
Dennis Vauk, Ian Moore, Nick  Hallale
In a petroleum refinery, viewing hydrogen as an asset rather than a liability can lead to increased profits. The key is in the mindset. A typical investor uses money to make money. This article shows you how to use hydrogen to make money.

Screw Feeders: A Guide to Selection and Use

February
2003
Fluids and Solids Handling
Thomas L. Krieger, Hermann J. Feise, Steven W. Couch, Timothy Bell
Gain insight as to what screw feeder is best for your application. Plus, learn how to size, specify and test screw feeders.

Production Modeling for Multimodal Operations

February
2004
Information Technology
Jeffrey D. Kelly
Two new views for production modeling are introduced - production flow networks and production flow maps - that focus on unit operations and feedstocks, respectively.

Designing Experiments for the Modern Micro Industries

February
2006
Computational Methods
Phillip H. Williams
Although the sparsity of effects principle is still good advice, we need to be careful of emphasizing it too much -- to the point that it becomes an assumed practice, rather than a useful rule of thumb.

Succeed in the Workplace

January
2007
Career Catalyst
Stan Sebastian
This top 10 list covers things you may never have been told about the real world.

What Does It Mean To Be Green?

September
2009
Opinion
Phillip E. Savage, P.E.
Sustainability encompasses green chemistry and green engineering, among other concepts. This article explores some of the principles of sustainability and provides a framework for developing a lifecycle approach to chemical engineering.

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,...

Understanding Process Safety Management

August
2010
Back To Basics
Adrian L. Sepeda
A structured risk-based approach defines the pathways to successful implementation of process safety management objectives

Account for Uncertainty in New Product Development

June
2001
Management
 Gary Blau, Gavin  Sinclair
New product development projects can be risky business. Learn how to incorporate uncertainty and risk analysis into the new product development process.

Pervaporation Comes of Age

October
2001
Reactions and Separations
Nick Wynn
This membrane process has found growing use for dehydrating organics. Uses keep increasing, mostly due to development of new, high-temperature membranes.

Step into the Virtual Plant

February
2002
Instrumentation
Mark S Sowell III, Gregory K McMillan, Michael M Mansy
The ability to warehouse process and control system knowledge offers a vast potential for improved operations by sharing a common source of information and avoiding data duplication.
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