AIChE

Radical Designs Boost Resource Efficiency

July
2010
News Feature
__
Joanna Ziemlewski
The top projects in the recent 10xE Design Challenge showcase the best examples of resource-efficient, integrative design from the chemical engineering community.

Develop Effective Environmental Training

September
2001
Environmental Management
__
Peter J. Stoll
Computer-based environmental compliance training offers a number of advantages. This article discusses the benefits of computer-based training, outlines its most important components, and provides tips for structuring and writing a course.

Estimate Emissions from Depressurization Activities

May
2002
Environmental Management
__
Jimmy Peress
Unlike other techniques, this method is applicable over a wide pressure range and in cases where the vapor pressure of the VOC approaches the operating pressure.

Destroying Organic Wastes: Thermal Oxidizer Basics

May
2005
Environmental Management
__
Yehuda Goldshmid
This article describes the types of oxidizers, outlines the parameters that affect oxidizer choice, and provides guidance on specifying a thermal oxidizer system.

Determining Manufacturing Costs

January
2009
Back To Basics
__
John Anderson
Making early estimates of a product's cost components enables developers to manage resources wisely and evaluate the product's economic viability.

Understanding Electromagnetic Flowmeters

May
2010
Instrumentation
__
Ronald W. DiGiacomo
Consisting of a flow tube, field-generating coils, electrodes, and a transmitter, a magmeter accurately measures the flowrate of conductive fluids over a wide range of conditions.

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.

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.

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.

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...

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
__
Mark Pilling
Bruce S. Holden
Tower-related problems can be difficult, time-consuming, and expensive to diagnose and fix. Here’s how to avoid difficulties and improve operating efficiency.
Subscribe to AIChE