Understand Hazard & Risk

The foundation of a risk-based approach which will allow an organization to use this information to allocate limited resources in the most effective manner.

LOPA – Validating Human IPLs and Ies

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 14, 2011
Layer of Protection Analysis (LOPA) is a simplified risk assessment method that provides an order of magnitude estimate of the risk of a potential...

Inherent Safety In Front End Engineering

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 14, 2011
The best time to apply the principles of inherent safety is during the early stages of a design. In particular it is at the early stages that the ?...

Using LOPA for Sil Assignment: A Tale of Two Plants

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 13, 2011
Two plants operated by the same company have ?identical? ammonium nitrate (AN) solution pump installations. Yet the LOPA teams concluded that the...

Explosion at T2 Laboratories

Archived Webinar
Sep 22, 2010
This webinar discusses the CSB investigation and findings related to the explosion and chemical fire at T2 Laboratories, Inc. in December 2007.

Flame Flashbacks: Causes and Prevention

Archived Webinar
Apr 7, 2010
This webinar addresses the principle of flammability of vapor/air mixtures, including flammability limits, ignition temperatures, the effect of inerts and how to determine the flammability of any particular mixture. It also covers ignition sources and the common methods of avoiding flashbacks,...

Modification of Risk Using Barrier Methodology

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 23, 2010
Risk assessments use frequency data mostly from generic sources, typically from the North Sea offshore environment or from process facility records...

Modeling Small Releases from Tanks

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 22, 2010
The methodologies in the chapter on “Dispersion Modeling” in the CCPS book Guidelines for Consequence Analysis of Chemical Releases, provide means...

Atmospheric Storage Tank Explosion Modeling

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 22, 2010
Many flammable products are usually stored in large vessels at atmospheric pressure. Ignition of an hydrocarbon-air mixture in such tanks can lead to...

Ensuring Consistency of Corporate Risk Criteria

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 22, 2010
The recently published CCPS text Guidelines for Developing Quantitative Safety Risk Criteria makes a strong case for corporations developing risk...

HAZOP, LOPA, SIL: Be Careful What You Ask for!

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
In recent years Process Safety Engineers have promoted the use of HAZOP to identify hazards and assess safeguards, followed by LOPA to identify if...

Fire Study of Melting Fiberglass Using FLUENT CFD Software

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Thermal insulation is used in chemical plants primarily as a tool to prevent energy loss. However, if installed properly, an added benefit is that of...

Is It Really an Independent Protection Layer?

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Layer of Protection Analysis (LOPA) is a simplified chemical process risk assessment tool that is used to determine if sufficient independent...

Lifecycle Physical Hazards of Polystyrene Foam Board

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Polymer Foam Boards have been widely used for individual home and general building, from roofs and/or walls down to foundation, for example. On the...

Consistent Consequence Severity Estimation

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
LOPA, as a semi-quantitative analysis, often provides inconsistent results. This can be due to physical differences between units but often it is due...

LOPA and Human Reliability – Human Errors and Human IPLs

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Layer of Protection Analysis (LOPA) is a simplified risk assessment method that provides an order of magnitude estimate of the risk of a potential...

Assessing the Burning Rate of Solid Oxidizers

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
A method for assigning solid oxidizers and products containing oxidizers to an NFPA Class was developed. The method consists of two reaction-to-fire...

Instrumented Protective Systems for Distillation Operations

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Distillation is one of the most common unit operations in the chemical processing industry. Using relative volatility as a means of separating...

LOPA – Going Down the Wrong Path

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 21, 2010
Layer of Protection Analysis (LOPA) has quickly gained acceptance in the Chemical Processing Industries (CPI), and has risen to be one of the leading...

Risk Criteria

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 29, 2009
The new CCPS Guidelines for Establishing Risk Criteria will be published in mid-2009. This session includes papers regarding the development and...

Managing Organizational Change

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 29, 2009
Management of Change has long been recognized as a fundamental cornerstone of a process safety program. Through the years, most companies have...

Food and Consumer Products Process Hazards

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 28, 2009
The Food and Consumer Products area has significant hazards and risks from dust and flammable liquid explosions as well as from toxic releases...

Tools to Identify Hazards

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 27, 2009
Personnel involved with day-to-day plant operations maintain an important role in the hazard identification and risk assessment (HIRA) process. These...

Fires, Explosions and Reactive Chemicals

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 27, 2009
The analysis, prevention, protection and mitigation of fire, explosion, and reactivity hazards continue to be important to the loss prevention...

Applications of Lopa (Layer Of Protection Analysis)

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 27, 2009
Layer of Protection Analysis (LOPA) continues to be a powerful and popular tool for assessing risk. This session presents papers focusing on applied...

Introduction to Flammable Materials

Archived Webinar
Feb 17, 2009
This webinar will provide a basic introduction to flammable materials with the purpose of providing valuable information that a practicing engineer can use to prevent fires and explosions. The presentation will first define the problem using accident statistics and some simple case histories, and...

Recommended Industry Process Safety Metrics

Archived Webinar
Feb 13, 2008
The BP US Refineries Independent Safety Review Panel (“Baker Panel”) and US Chemical Safety Board each recommended improved industry-wide process safety metrics in their final reports dealing with the 2005 explosion at the BP Texas City refinery. This has also been a subject of frequent discussions...

Robotic Convection Bank Cleaning

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 28, 2015
Ethylene cracking heaters like other box fired heaters in the refining and petrochemical industry represent a significant investment in a plant...

Toxicity-Hazard Index and the "Infinite Point"

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 28, 2015
TOXICITY-HAZARD INDEX AND THE “INFINITE POINT” Richard W. Prugh, Principal Process Safety Engineer Chilworth Technology, Inc., a Dekra Company 113...

Fatal Exposure: Tragedy At DuPont

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
April 4, 2012
This investigation by the United States Chemical Safety and Hazard Investigation Board (CSB) provides unique lessons in process safety. Three...

Uncertain about Uncertainty

Conference Presentation
AIChE Spring Meeting and Global Congress on Process Safety
March 28, 2017
Key Words: Understand Hazard & Risk, Hazard Identification and Risk Analysis, Define probability; Subjective probability Abstract: It is well-...

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