AIChE

Disinfect with Sodium Hypochlorite

March
2003
Safety
Anton G. Callery
Sodium hypochlorite is an effective alternative to chlorine gas. Follow these guidelines for its safe use.

Understanding Sealing Solutions

July
2009
Back To Basics
Jim Drago, Matt Tones
The right seal can help a plant save money, eliminate leaks, and avoid safety problems. Here’s how to select and install gaskets for effective sealing.

Evaluating Chiller Performance

May
2003
Heat Transfer
Charles Churchman
Use these simple temperature and flow measurement techniques to evaluate chilled-utility performance and identify the most cost-effective upgrades.

A ChE's Guide to Toxicology

June
2004
Environmental Management
Lisa M. Sweeney
Toxicology impacts a chemical engineer in a variety of ways. Here's what you need to know about the basics of this field.

Predesign with Safety in Mind

July
2006
Safety
Gael D. Ulrich, Palligarnai T. Vasudevan
This article will help you develop strong safety instincts that will guide you in making critical decisions in the preliminary design phase.

Controlling Risk During Major Capital Projects

April
2009
Safety
William Bridges
Think of process safety management (PSM) as a project deliverable, and follow these best practices for scheduling and performing process hazard analyses (PHAs) and completing other PSM requirements during key phases of a major project.

Addressing Combustible Dust Hazards

May
2011
Back To Basics
Judy Perry, Michelle Murphy, Molly R. Myers
Facilities that handle or generate dusts are at risk for explosions and flash fires. Follow this approach to understand and mitigate your combustible dust hazards.

Use Cloud Tools to Collaborate

July
2012
Career Catalyst
Loraine Kasprzak
Internet-based applications are changing the way chemical engineers collaborate. These virtual tools can help project teams make decisions more quickly, reduce costs, and increase productivity.

Legionella: An Invisible Risk

April
2008
News Feature
Cynthia F. Mascone
Ignoring this hidden hazard can put both the public and companies that operate cooling towers at risk.

Clean Up Contaminated Sites

January
2002
Environmental Management
Faisal I. Khan
Risk-based monitored natural attenuation effectively monitors the extent of contamination, the associated risk, and the effectiveness of natural clean-up processes.

Estimate Emissions from Vacuum Operations

May
2002
Environmental Management
Jimmy Peress
This article compares empirical methods and test methods for determining air-leakage rates and offers guidelines on their use.

Conduct an Effective Incident Investigation

September
2004
Safety
Frederick T. Dyke
Information that can reveal the root cause of an incident resides in many places — within the plant or process unit, in control rooms and offices, and even in witnesses’ minds. Here’s how to find the data and conduct effective witness interviews.

Applying Mass and Energy Balances to Spray Drying

December
2009
Back To Basics
Tim Langrish
Mass and energy balances are not just for process and equipment design. They can also be used to improve dryer operations by answering various “what-if” questions about temperatures, flowrates, and moisture contents. <br><br>

F = MA of Biology?

AIChE Annual Meeting
Oct 17, 2011
I will describe my participation over the past few years in an effort to find fundamental mathematical laws in biology. I will discuss a theory for...

A New Class of Polymer Inhibitors

AIChE Spring Meeting and Global Congress on Process Safety
Mar 16, 2011
Polymer inhibitors are used within an ethylene plant in locations which are susceptible to aggressive polymer formation i.e. Primary Fractionator,...

Cracked Gas Compressor Control Tutorial

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
The market conditions over the couple of years has prompted many end-users to review antisurge control design to help lower their energy index. A...

Objectives of Anti-Surge Control

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Objectives of Anti-Surge Control Preventing a compressor surge is the primary purpose of an anti-surge controller. However, there are additional...

Thoughts about Safety, Staying at Zero

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Perfect safety records and perfect environmental records are an “inalienable right”, given to us not by governments, companies, or others. It is a...

Flare Minimization Via Dynamic Simulation

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Flaring in chemical process industry (CPI) is an important method to protect equipment and personnel safety during the process upset and the chemical...

LNG Tank Top Fires

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
The regulatory requirements of 49 CFR 193, Liquefied Natural Gas Facilities: Federal Safety Standards, require thorough engineering reviews before...

Improving Ethylene Charge Gas Compressor Performance

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
The changing landscape of the ethylene industry requiring more feedstock flexibility and upstream and downstream integration increases the complexity...

Mitigation of Preheat Fouling by Eliminating the Cause

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Today, there is no excuse for not getting five years or more on the run length of refinery preheat exchangers without the need for cleaning. Among...

Trip & Throttle Valve Reliability

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Trip & Throttle Valve Reliability Trip & Throttle (or Stop) valves are used in ethylene plants to isolate the energy to steam turbines when...

Ethylene Boil-off Compressor Process Safety Incident

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Braskem, a Brazilian player among petrochemical manufacturers, produces monomers, resins and chemicals specialties. The overall Ethylene capacity is...

Novel Additives to Improve Resid Quality

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
With an increasing focus on resid upgrade and bottom of the barrel conversion over the years due to economic advantages, refiners are increasingly...

Industry Standards for Composite Repair Systems

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
ABSTRACT A significant amount of work has transpired over the past several years in generating consensus-based standards that include ASME PCC-2 and...

C5 Metathesis for Increased Propylene Production

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
The production of on-purpose propylene via the metathesis of ethylene and butenes now exceed 6% of the total propylene. The supply of butenes is...

Life Cycle of Aluminum Plate Fin Exchangers

AIChE Spring Meeting and Global Congress on Process Safety
Mar 14, 2011
Abstract: Corrosion, blockage, fouling, and mechanical/thermal overload are the key degradation mechanisms that operators need to control to avoid...
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