AIChE | The Global Home of Chemical Engineers

What Will Happen to the Balloons?

June
2012
Editorial
Cynthia F. Mascone
They might be more expensive, but there’s probably no need to cancel your party plans just yet. “There’s lots of helium out there” says John Van Sloun, general manager — worldwide helium at Air Products, “but very little of it is being captured because the economics of doing so are not favorable.”

The Chemical Industry Phoenix

June
2012
Process Automation Corner
Terry McMahon
Seven years ago, I wrote a column for another publica­ tion entitled “The U.S. Chemical Industry: R.I.P.” This pillar of American economic strength, which a few years earlier was the leading exporter among U.S. manufac­turing sectors (with net exports of $15–20 billion annually), was shriveling due in large part to policy blunders and regula­tory mistakes.

Nitrogen — Hazard and Safeguard

June
2012
Process Safety Beacon
This Beacon is not focused on a single incident, but on incidents that continue to occur across industry — nitrogen asphyxiation.

Minimize the Risks of Flammable Materials

April
2012
Back To Basics
Daniel A. Crowl
Flammable materials can cause fires and explosions if they are not handled properly. Understanding these materials and the risks they pose is the first step to mitigating fire hazards.

Harness Electricity to Operate Valves

June
2012
Back To Basics
Justin Ledger
Actuators automate valves by converting an input signal into motion. This article explains the basics of electric actuator design and explores the different types of electric actuators.

Mohsen Almajnouni: Progress is a Process

June
2012
Profile
For Almajnouni, Process Domain Manager at Saudi Basic Industries Corp. (SABIC) and long-time chair of AIChE’s Saudi Arabia Local Section, progress is a byword in a life shaped by the will to embrace change.

Advance Your Career in 8 Words or Less

August
2002
Special Section
Kate Wendleton
A short, simple and concise message can be an effective way to let others know about your accomplishments and your worth.

Physical and Chemical Equilibrium for Chemical Engineers

April, 2012
This book concentrates on the topic of physical and chemical equilibrium. Using the simplest mathematics along with numerous numerical examples it accurately and rigorously covers physical and chemical equilibrium in depth and detail. It continues to cover the topics found in the first edition...

An Introduction to Immunity and Vaccines

November
2011
SBE Special Section
Derek Lapiska
An understanding of the basic approach to creating vaccines, as well as how vaccines confer immunity, is essential to developing safe and cost-effective formulations.

The Future of Coal-Based Power Generation

March
2008
Special Section
James R. Katzer
Despite its image as a dirty fuel, coal remains an economic choice for baseload power generation—and it can, in fact, have very low emissions.

Take the Tedium Out of Writing Process Descriptions

February
2001
Instrumentation
Michael J. Gentilcore
Setting up a special function and a shorthand system on a spreadsheet can improve the descriptions needed for implementing a process control system, while minimizing the monotony in writing them.

Burning Bright: Trends in Process Integration

July
2001
Process Development
Nick  Hallale 
Process integration has a far wider scope and touches every area of process design. Industries are making more money from their raw materials and capital assets, while becoming cleaner and more sustainable.

Write a Better Brochure

October
2001
Career Catalyst
Robert W. Bly
Engineers are often called on to review product brochures and ads for equipment and processes. Here are six tips for working more effectively with an ad agency or corporate marketing-communications department to create good product literature.

Squeeze More Out of Complex Columns

July
2002
Reactions and Separations
Piyush Shah
These distillation setups can cut capital and operating costs by up to 30%, and increase separation efficiency. Here is a straightforward method for evaluation.

Succeed in Business in Eastern Europe

November
2002
Career Catalyst
Lionel F. Laroche, Susan Morey
Eastern Europe is a significant potential market for Western corporations. There are plenty of opportunities for success if you learn to do business in a way that meshes with Eastern European expectations of how business should be done.

Work Effectively with Your Patent Attorney

April
2003
Career Catalyst
Steven J. Helmer
By understanding the basics of patent law and by establishing a close working relationship with your attorneys, you can ensure that you receive the broadest possible patent protection.

Shaping a New Role for the Operator

May
2004
Management
Ian  Nimmo, Peter  Bullemer,  Sandra  Foreman
In the future, operating teams may proactively manage their plants to maximize safety and minimize environmental impact, while pushing the processes to their optimal limits. Here's how to achieve the necessary paradigm shift by giving operators an...

Pipeline Pressure Drop: A New Design Correlation

June
2006
Fluids and Solids Handling
Roger Gilmont
A linear equation has been derived to accurately calculate the flowrate of fluids in the laminar and turbulent regions, and to derive an equation for use in the transitional regions.

Industry and SBE News

October
2007
SBE Special Section
Dr. George Georgiou to Receive SBE's James E. Bailey Award; Averting an Epidemic— Novel Device Detects Avian Flu Virus in Less than Half an Hour; Cell-Free Protein Sythesis Comes of Age; Genetically Engineering Microorganisms into Pharmaceutical...

Evaluating Cooling Tower Upgrades

May
2008
Heat Transfer
Tom Dendy
When considering improvements to cooling towers, it's important to perform an economic analysis of the options.

Minimize Scale-Up Risk

March
2010
SBE Special Section
J. Brad Cort, Thomas Pschorn, Bertil Stromberg
Proven commercial-scale equipment already exists for many operations involved in producing biofuels from lignocellulosic feedstocks.

Identifying Corrosion and Its Causes

April
2011
Fluids and Solids Handling
Gary Geiger, Mel J. Esmacher, P.E.
An important first step in maintaining equipment reliability and efficiency is understanding the various types of corrosion damage that can occur.

Women ChEs Make Progress Toward Equity

August
2003
Special Section
Irene Kim
Women in the chemical engineering profession are gaining equality -- to varying degrees -- in numbers, salary and worklife environment.

Good Drug Therapy: It's Not Just the Molecule - It's the DELIVERY

February
2004
Special Section
Rita D'Aquino
In today's competitive marketplace, biopharmaceutical companies are seeking effective and user-friendly drug-delivery platforms for their drug molecules. Miniaturized, microfabricated and nanofabricated devices that can be implanted in the body are...

Clarifying Centrifuge Operation and Selection

August
2004
Fluids and Solids Handling
Victor Norton ,  William Wilkie
Before selecting a centrifuge for your application, understand its principles of operation and investigate the key process variables.

Pumping System Head Estimation

February
2005
Fluids and Solids Handling
James Anthony
These spreadsheets highlight losses, uncertainties and value of power used, helping you optimize pumping system designs and save on operating costs.

Tools to Model Multiphase Separation

June
2007
Fluids and Solids Handling
David Connolly, Saeid Mokhatab, Timothy Newton
The flow fields in multiphase separators are often extremely complicated, making it difficult to model such systems. Computational fluid dynamics (CFD) and visual dynamic modeling (VDM) can be used together to overcome some of the challenges.

Use Model-Predictive Control to Improve Distillation Operations

January
2008
Instrumentation
Robert J. Conroy, Umesh Mathur, Robert D. Rounding, Daniel R. Webb
This methodology, based on steady-state and dynamic simulation, can be used to develop the necessary models— and avoid disruptive and costly step testing to the extent feasible.

Predicting Emissivities of Combustion Gases

June
2009
Heat Transfer
Alireza Bahadori, Hari B. Vuthaluru
Use this new correlation, which employs easy-to-solve algebraic equations to estimate gas emissivities, to simplify the design and optimization of boilers, furnaces and other combustion equipment.

Your Personal Genome for $1,000?

November
2009
SBE Special Section
IBM scientists from four fields — nanofabrication, microelectronics, physics and biology — are collaborating to develop a “DNA transistor” that could make obtaining a personalized genome analysis easier, faster, and cheaper — ultimately as low as $...

Measuring and Communicating Sustainability through Eco-Efficiency Analysis

December
2010
Environmental Management
Peter Saling, Bruce W. Uhlman
Eco-efficiency analysis promotes an understanding of the economic and environmental trade-offs over products’ lifecycles, and supports informed, strategic decision-making in all areas of a business, from spurring innovative product development to...

Selecting the Proper Flare System

July
2011
Back To Basics
Adam Bader, Wes Bussman, Charles E. Baukal Jr., P.E.
Flares allow for the safe, effective disposal of gases and liquids, by acting as relief devices when a plant must quickly dispose of product within its system to prevent overpressurization and potential explosions.

Reduce Your Compressed Air Costs

October
2011
Fluids and Solids Handling
Ron Marshall, Bill Scales
Annual operating expenses for compressed air systems can exceed the equipment’s purchase price. Follow these seven steps to implement efficiency measures that yield cost reductions.

Optimize Heat Exchanger Cleaning Schedules

June
2001
Heat Transfer
Bruce A. Barna, Chris D. Gosling, Brendan R. O'Donnel
Get the most out of your heat exchanger by evaluating the trade-offs between a one-time expenditure and reduced operating expenses, increased income, and/or longer operating life span. Brendan R. O'Donnell - Bruce A. Barna - Chris D. Gosling -

Integrate EHS for Better Process Design

February
2002
Process Development
Lisa Bendixen
Get a jump on process development by addressing environmental, health and safety (EHS) issues together early in the design and development cycle. The result will be a better process and lower costs.

Improve Your Reading Efficiency and Speed

March
2003
Career Catalyst
Robert W. Bly
Are you feeling overwhelmed by the daily influx of memos, letters, reports and journals? These tips will help you develop a systematic method for dealing with the endless stream of material that is essential to your job.

Preparing for GHG Inventory Verification

April
2004
Environmental Management
- Lauren M. Sandler, James T. Wintergreen
To ensure that the greenhouse gas inventory is accurate and complete, prepare for eventual third-party verification during the planning and data collection stages.
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