AIChE | The Global Home of Chemical Engineers

Shortcut Distillation Calculations via Spreadsheets

December
2002
Reactions and Separations
Jake Jevric, Muhammad E. Fayed
This method uses a numerical solution to the McCabe-Thiele diagram to find the theoretical number of stages for binary and pseudo-binary systems,then calculates the actual number of stages, reflux ratio and column dimensions.

Improve Your Telephone Skills

May
2003
Career Catalyst
Make the most of this important tool by practicing some common sense and good etiquette. RobertW.Bly-

Evaluating Dryers for New Services

December
2003
Heat Transfer
Charles G. Moyers
Continuous dryers are accurately and easily evaluated using laboratory-scale simulators combined with the specific drying rate approach.

Improve Plant Reliability by Redefining Roles

June
2004
Management
Kevin Smith
The operator and maintenance technician can play key roles in ensuring equipment reliability and thus maximizing production while maintaining quality.

Preventing Maldistribution in Multi-Pass Trays

April
2010
Reactions and Separations
Richard Dionne, Henry Z. Kister, Matthew R. Olsson, Walter J. Stupin
This method, based on hydraulic equations in the open literature, calculates vapor/liquid distribution in four-pass trays to correctly predict flooding and efficiency.

Implementing an IACS Patch-Management Program

May
2011
Information Technology
Kevin Staggs
Maintain state of the art industrial automation and control systems (IACS) by using these steps to support an effective patch management program and implement it with minimum risk.

A Rich and Diverse History

January
2002
Special Section
Irene Kim
This look at the continuing evolution of chemical engineering starts with reflections on the past.

Metabolic Engineering of Next-Generation Biofuels

August
2008
SBE Special Section
Wendy Higashide, James C. Liao
Engineers are turning to genetic and biological tools and techniques to synthesize higher-chain alcohols that do not suffer from the same limitations as ethanol.

Uncovering the Realities of Simulation

May
2001
Computational Methods
Andrew  Vieler, Marco S. Satyr, Oscar  Santollani , Rajeev  Agarwal, Yau-Kun Li
Running sophisticated process simulations does not guarantee correct results. You need to understand the thermodynamic assumptions underlying the program and how to ensure proper applications.

Caught in the Act

September
2002
Career Catalyst
Jody Urquhart
To acknowledge people in a meaningful way, catch them doing good things and recognize their efforts.

Computationally Evaluate Self-Reactivity Hazards

February
2003
Reactions and Separations
Edward S. Shanley, Michelle R. Murphy, Surendra K. Singh
Here is a method that rates the tendency of new compounds to self-explode without the need to perform extensive laboratory tests.

Should You Accept an International Assignment?

August
2003
Career Catalyst
C. Delia Contreras, Fabio Bravo
Consider the career- and family-related benefits and trade-offs of an overseas experience, as well as whether you have what it takes to be successful in such a position.

Work More Effectively With Others

February
2004
Career Catalyst
Doug  Hissong
Learn ways to improve your interpersonal and communication skills so that you can work more effectively with others, and increase your own productivity and effectiveness.

Guidelines for Selecting Sterilizing-Grade Filters

March
2005
Fluids and Solids Handling
Philip Blosse, Monica Cardona
Determine if your bioprocess needs a sterilizing grade filter, and if so, use these guidelines to select the proper one for your application.

Ensure Consistent Greenhouse Gas Emissions Estimates

September
2005
Environmental Management
Miriam Lev-On , Karin Ritter. Susann Nordrum
These techniques can be used to estimate and report GHG emissions from a wide variety of diverse sources, thereby increasing global consistency.

A ChE's Tradeshow Survival Guide

February
2006
Career Catalyst
Cynthia F. Mascone
It can be a jungle out there on the exhibit floor. Try these tips to help you make the most of your trade show visit.

Mirror, Mirror on the Wall...

November
2006
Career Catalyst
David Madison, Cynthia Strite
Spending time in front of a mirror may seem narcissistic. But scrutinizing and perfecting your image is an essential step in achieving your career goals.

Discussing Climate-Change Challenges

July
2007
News Feature
Matthew McKeon-Slattery
The U.S. is still at odds with other developed nations when it comes to a strategy for reducing greenhouse gas emissions. At the G8 Summit, President Bush opposed a pact advocated by German Chancellor Angela Merkel calling for CO2 emissions to be...

Evaluating Toll Manufacturers

September
2008
Management
Osman Aboul-Nasr
This alternative production approach can offer significant time and capital cost savings. The key is to choose a qualified toller.

Exploring New Paradigms for Bioprocessing

July
2009
SBE Special Section
Jonathan Monk
Disruptive technologies, such as disposable bioreactors, metabolic ?ux models, and glycoengineered yeast, could change the face — and pace — of biomanufacturing.

Visualizing the McCabe-Thiele Diagram

December
2009
Reactions and Separations
Paul M. Mathias
Use this spreadsheet-based visualization and interactive analysis of the McCabe-Theile diagram to understand the foundations of distillation engineering. <br><br>

Improve Flange Joint Reliability

January
2011
Back To Basics
Mike Emery, John Ludman, Thomas Sandbrook
Proper design, installation, and maintenance of flanged connection systems can prevent loss of containment and process interruptions. Follow this seven-step approach to ensure reliability of this critical process equipment.

Finding Your Career Path by Finding Yourself

June
2001
Career Catalyst
Eileen  Sharaga - 
Having an understanding of your skills and talents, particularly transferrable ones, will lead you to greater self-awareness, which will give you a greater capacity for achieving success.

Improve Your Position Where You Are

June
2002
Career Catalyst
Kate Wendleton
Basic job-hunting skills such as staying aware and making yourself marketable are also key to advancing your career with your present employer.

Navigate Phase Equilibria via Residue Curve Maps

November
2002
Reactions and Separations
Raymond N. French, George J. Koplos, Waldo E. de Villiers
These maps provide a rapid, graphical means to visualize the separation possibilities and constraints of azeotropic ternary systems. They also help check the soundness of models used to predict equilibrium data.

Avoid Internet Pitfalls

April
2003
Information Technology
Tim Headley
When developing your website, take these preventative measures to steer clear of any potential lawsuits.

Preparing an Air Emissions Inventory

November
2003
Environmental Management
Marc Karell
To keep track of its emissions and its regulatory compliance status, a plant must perform a thorough, process-by-process emissions inventory.

Succeed at Catalyst Scale-Up

June
2006
Reactions and Separations
Richard Allen, William H. Beever, Jeff Braden, Donald R. Engelbert, J. Todd Osbourne, Uday T. Turaga, Ben Wagner
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
Phil Byrne, Ed Fontes, Henrik von Schenck, Christian Wollblad
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.

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
Mahmoud M. El-Halwagi, Vasiliki Kazantzi
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.

Run Clean with Dry Vacuum Pumps

October
2001
Fluids and Solids Handling
Jim  Ryans, Joe  Bays
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
A. G. Dastidar, Faisal I. Khan, P. R. Amyotte
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...

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?

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>

Chemical Engineering in the Pharmaceutical Industry: R&D to Manufacturing

October, 2010
This book deals with various unique elements in the drug development process within chemical engineering science and pharmaceutical R&D. The book is intended to be used as a professional reference and potentially as a text book reference in pharmaceutical engineering and pharmaceutical sciences...

Principles and Case Studies of Simultaneous Design

September, 2011
There are many comprehensive design books, but none of them provide a significant number of detailed economic design examples of typically complex industrial processes. Most of the current design books cover a wide variety of topics associated with process design. In addition to discussing...

Pump Wisdom: Problem Solving for Operators and Specialists

April, 2011
An accessible guide to the main reasons pumps fail—and what can be done about it Workhorses in many different industries, including the oil industry, water industry, chemical industry, food industry, and pharmaceutical industry to name a few, pumps are a vital contributor to maintaining and...

Problem Solving for Process Operators and Specialists

April, 2011
This book provides methods to train process operators to solve challenging problems. The book is split into two parts. The first part consists of two parts; first developing a daily monitoring system and second providing a structured 5 step problem solving approach that combines cause and effect...

Teach Yourself the Basics of Aspen Plus

January, 2011
Aspen Plus is on of the most popular process simulation software programs used industrially and academically. Though the software is available at many corporations and universities, there are no textbooks which are dedicated to teaching the step-by-step use of the software. This book is designed to...

Mass Transfer Operations for the Practicing Engineer

July, 2010
An invaluable guide for problem solving in mass transfer operations. This book takes a highly pragmatic approach to providing the principles and applications of mass transfer operations by offering a valuable, easily accessible guide to solving engineering problems. Both traditional and novel mass...

LNG Risk Based Safety: Modeling and Consequence Analysis

March, 2010
The expert, all-inclusive guide on LNG risk based safety. Liquefied Natural Gas (LNG) is the condensed form of natural gas achieved by cryogenic chilling. This process reduces gas to a liquid 600 times smaller in volume than it is in its original state, making it suitable for economical global...

Hydrogen and Syngas Production and Purification Technologies

December, 2009
Covers the timely topic of fuel cells and hydrogen-based energy from its fundamentals to practical applications Serves as a resource for practicing researchers and as a text in graduate-level programs Tackles crucial aspects in light of the new directions in the energy industry, in particular how...
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