AIChE

Reduce VOC and HAP Emissions

June
2002
Environmental Management
Edward C. Moretti 
Follow this roadmap to understand the abatement technologies available for controlling emissions of volaitle organic compounds and hazardous air pollutants and the criteria for choosing among them.

Addressing the Hazards of Data Omission from MSDSs

April
2005
Safety
James C. Mulligan
If certain chemicals lack physical hazards data, suppliers must be proactive to keep workers safe. Here’s how to determine dust flammability and reactivity data for inclusion on MSDSs.

Designing Resilient Engineered Systems

April
2006
Safety
Susan M. Mitchell
By viewing resiliency as a property of complex systems, it may be possible to develop resilient systems that can withstand unanticipated failures without disastrous consequences.

Consider Natural Hazards in Process Safety Management

July
2008
Safety
Frank F. Liserio Jr.
Incorporating hurricanes, earthquakes and other forces of nature into an integrated process safety management (PSM) program can enable you to effectively identify these hazards and manage the risks.

Tracking Trends in Undergraduate Enrollment

November
2008
Centennial
R. Russell Rhinehart
By understanding the normal enrollment swings, employers and students can capitalize during the boom times and rideout the busts, while universities can allocate resources more effectively.

Designing a Process Flowsheet

May
2009
Back To Basics
Vornel Walker
Piping and instrumentation diagrams belong to a family of flowsheets that includes block flow diagrams and process flow diagrams. Technology advances have transformed these resources into intelligent documents, capable of storing layers of digital...

Choose the Right Chemical-Resistant Glove

January
2005
Safety
Julie Copeland
Many gloves offer protection from chemicals. This article will help you understand what type of glove can provide the best protection for your application.

The New Disposable Evolution

July
2009
SBE Special Section
Joanna Ziemlewski
Single-use systems have advanced from a limited product line to several new products for a wider range of unit operations. As these technologies evolve, new size, cost, and regulatory needs continue to fuel industry growth.

Capital Spending in the Chemical Industry

January
2011
Chem Economics
T. Kevin Swift
Understand the economic state of the chemical industry and trends in capital investment to make wise corporate-spending decisions.

CEP: YPOV - Engineering Cyber Security

July
2012
YPOV
Arjun Gopalratnam
Between March and April 2010, a powerful but seemingly limited computer worm, now referred to as Stuxnet, infected computers around the world, beginning in Iran and spreading to Indonesia and India. A recently published book uncovers findings on the origin of the worm and raises concerns that are relevant to chemical engineers everywhere.

Profiles

January
2002
Special Section
Margaret Clarke Hunt
These profiles of a dozen engineers in different stages of their careers offer snapshots of where chemical engineers are employed.

Exposing Coriolis Mass Flowmeters' Dirty Little Secrets

March
2004
Instrumentation
James R. Reizner
Coriolis technology appears to be the perfect technology. But, upon closer inspection, a key flaw is revealed - the inability to accurately and consistently measure two-phase flow and aerated liquids.

What Pressure Relief Really Means

September
2010
Back To Basics
Brian D. Kelly
Poor design, inadequate maintenance, and improper operation can all lead to mechanical failure. The basic concepts of pressure relief, when understood and applied properly, can help prevent this failure

Producing Hot Water by Direct Steam Injection

May
2010
Back To Basics
Philip Sutter
Inline direct steam injection is more energy efficient than indirectly heating water in a tank. Use this overview of DSI equipment to select the appropriate system for your application.

Process Safety Beacon - Emergency Preparation - The Titanic Disaster

July
2012
Process Safety Beacon
More than 1,500 people died in the most famous maritime disaster in history. Thousands of pages have been written about the loss of the Titanic, and many documentary and fictional movies produced. Many focus on the construction of the ship and the actions of its captain and crew. Whatever the construction and operating issues, attention to one particular issue could have saved many lives — emergency preparation.

Biofiltration - A Primer

April
2001
Environmental Management
Stephen  F. Adler
Use these guidelines to scale up and design biofiltration processes for the control of volatile organic compounds.

Tracing Process Problems

April
2002
Instrumentation
John E. Hoots
In water chemistry control, fluorescent tracing technology can quickly and effectively determine and deal with the root cause of a problem.

A Century of Triumphs

November
2008
Centennial
Ten lasting chemical engineering achievements — and 100 markers of chemical engineers’ progress toward them.

Use LOPA to Determine Protective System Requirements

February
2007
Safety
W. Kent Goddard
This article explains how to use layers of protection analysis (LOPA) to evaluate various process safeguards, determine if safety instrumented functions are required, and establish what safety integrity levels are needed to reduce risks to tolerable...

Develop a Strategy for Residual Risk

January
2001
Environmental Management
Mary F. McDaniel
Understand the implications of the pending regulations to better address residual risk and to develop an effective communications plan.

Use Exponential Functions to Correlate Temperature Dependence

July
2008
Physical Properties
Faruk Civan
Use Exponential Functions to Correlate Temperature Dependence Asymptotic exponential equations may provide a more-accurate or easier-to-use representation of a property’s temperature dependence than commonly used polynomial expressions.

Looking for Growth in the Chemicals Industry

January
2012
Chem Economics
T. Kevin Swift
Recovery has stalled in developed nations. Debt, unemployment, and the emerging recession in Europe will encumber U.S. growth prospects in the years ahead. One bright spot, however, is the shale gas story.

Nanosensors: Evolution, Not Revolution...Yet

June
2008
News Feature
Suzanne A. Shelley
Promising nanotechnology-enabled sensors, monitoring devices and analytical instruments continue to advance toward commercialization for diverse industrial, environmental, medical and military applications— but hurdles remain.

Designing Multiple-Diameter Relief Piping

July
2007
Safety
John Garvin
Most design methods consider a single pipe diameter. Here's how to evaluate multiple-diameter systems and to calculate conservative single-pipe representations.

Designing the New Global Chemical Engineer

February
2009
News Feature
Joanna Ziemlewski
Universities around the world are tackling different pieces of the teaching puzzle to transform students into ideal chemical engineers.

Avoid Natural Gas Piping Hazards

January
2011
Safety
John R. Puskar, P.E.
Repairing natural gas piping is inherently dangerous. Follow these safety protocols to avoid potentially catastrophic results from improper installation and repair of natural gas lines.

IGCC Power Generation - Down But Not Out

September
2008
News Feature
Suzanne Shelley
Many technology advances are underway to address cost, CO2 and reliability issues and expand the use of integrated gasification combined cycle (IGCC), a cleaner way to generate electricity from coal.

Understanding Reactive Chemical Incidents

March
2004
Safety
John F.  Murphy
In order to avoid incidents involving reactive chemical hazards, it is useful to understand the types of chemicals and types of equipment involved, as well as the root causes of the incidents.

Choosing Trays and Packings for Distillation

September
2009
Back To Basics
Bruce S. Holden , Mark Pilling
Tower-related problems can be difficult, time-consuming, and expensive to diagnose and fix. Here’s how to avoid difficulties and improve operating efficiency.

Using Chromatography to Separate Complex Mixtures

December
2010
Back To Basics
Nathalie Fraud
Purifying high-value mixtures, such as pharmaceuticals, can be an expensive undertaking. Choosing the correct chromatography methods can improve purity and reduce processing time and cost.

Expanded Metal Networks: A Safety Net to Thwart Gas Explosions

December
2001
Safety
Hans K. Fauske, Robert E. Henry
Using active deflagration suppression is the usual way to prevent or mitigate gas explosions. However, this is not always practical. A passive method is now available - inserting a metal foil into the vessel to absorb the heat of reaction and...

Nanotechnology: Cause for Concern?

September
2007
News Feature
Kristine Chin
Nanotechnology— it's a small science with big stakes. Some of the unique properties that make nanoscale materials useful may also pose hazards to humans and the environment. Can the EPA find a way to effectively regulate these tiny high-tech...

Saluting AIChE’s Centenarians

November
2008
Centennial
In honor of AIChE’s 100th birthday, we recognize two members who have each celebrated more than 100 birthdays.

Valves 101: Types, Materials, Selection

March
2009
Back To Basics
Brian Gordon
The most common valves used in chemical processing are ball valves, butterfly valves, diaphragm valves, and check valves.

Co-Inventors: Who Owns the Patent Rights?

June
2012
Patent Update
M. Henry Heines
A joint invention arises from the combined efforts of two or more inventors. Once a patent is granted, however, the inventors do not necessarily share in the rewards.
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