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Hazard Identification and Risk Analysis

A thorough Hazard Identification and Risk Analysis, or risk, system is the core element in the RBPS pillar of understanding hazards and risk. The chapter describes the meaning of risk for RBPS purposes, the attributes of a risk system, and the steps an organization might take to implement a robust program for identifying hazards and analyzing risk. Introduction to Hazard Identification and Risk Analysis

Information regarding Remote Isolation and Shut Off

For more in-depth information regarding understanding hazards and risk, refer to CCPS' Guidelines.

Lifecycle Physical Hazards of Polystyrene Foam Board

Mar 21, 2010
Atsumi Miyake
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 other hand, these Boards have significant physical hazards, because flammable blowing agent has come to be used, replacing nonflammable CFC chemicals...

Quantitative Risk Assessment Case Study for Organic Acid Processes

Mar 21, 2010
R. Wayne Garland
Acetic acid is not a chemical covered by the OSHA PSM regulation, as its flash point is above the 100 F threshold for flammables; however, it is by no means a non-hazardous chemical. Eastman Chemical Company has a large number of processes containing acetic acid and related organic acids, and as a...

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

Mar 21, 2010
Mike Broadribb
In recent years Process Safety Engineers have promoted the use of HAZOP to identify hazards and assess safeguards, followed by LOPA to identify if additional protection layers are necessary and, if they are to be provided using safety instrumented functions, how reliable the SIFs need to be...

Instrumented Protective Systems for Distillation Operations

Mar 21, 2010
Jennifer Mize
Distillation is one of the most common unit operations in the chemical processing industry. Using relative volatility as a means of separating chemicals involves adding large amounts of energy to the system at the base of the column, typically through the use of a reboiler, and then removing that...

Chronic Pain Resulting from Your Relief Device Management Systems

Mar 21, 2010
David A. Moore
With the increasing use of Layer of Protection Analysis as a semi-quantitative method of assessing process risk, LOPA practitioners are asked to assign credit to numerous safeguards including relief devices. Relief devices are only as strong as the initial design of the component and the systems...

Assessing the Burning Rate of Solid Oxidizers

Mar 21, 2010
Elizabeth C. Buc
A method for assigning solid oxidizers and products containing oxidizers to an NFPA Class was developed. The method consists of two reaction-to-fire tests: a bench-scale screening test with thirty gram piles and an intermediate-scale fire exposure test with twenty four pounds of material in...

LOPA and Human Reliability – Human Errors and Human IPLs

Mar 21, 2010
Bill Bridges
Layer of Protection Analysis (LOPA) is a simplified risk assessment method that provides an order of magnitude estimate of the risk of a potential accident scenario. Humans can be the cause on an accident scenario (the Initiating Event [IE]) or human can serve as an independent protection layer (...

Fire Study of Melting Fiberglass Using FLUENT CFD Software

Mar 21, 2010
Steve G. Rochelle
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 allowing the use of smaller relief valves when designing relief systems in the fire case. The study described in this report was initiated to...

Risk Criteria

Apr 29, 2009
Fred Henselwood, Wayne Chastain
The new CCPS Guidelines for Establishing Risk Criteria will be published in mid-2009. This session includes papers regarding the development and application of risk criteria to improve a company's risk profile. Topics also include experience and examples with risk apportionment, international...

Managing Organizational Change

Apr 29, 2009
George Melham, John Wincek, Paul Davidson
Management of Change has long been recognized as a fundamental cornerstone of a process safety program. Through the years, most companies have evolved a mature system to manage technical changes -- equipment, materials, and technology -- in their facilities. In recent years, the effects of, and...

Food and Consumer Products Process Hazards

Apr 28, 2009
Catherine Kollhoff, Guy Colonna, John Bresland
The Food and Consumer Products area has significant hazards and risks from dust and flammable liquid explosions as well as from toxic releases. Moreover, the Montreal Protocol for the removal of Ozone Depleting incudes papers on the identification, prevention, control, and management of hazards and...

Hazard Evaluations and Layer of Protection Analyses

Apr 28, 2009
Bill Bridges, Gerald N. Evenson, Mark Kaszniak
Process hazard analyses (PHAs) and their extension into LOPAs and Safety Integrity Level (SIL) determinations continue to be central to loss prevention efforts. This session contains presentations related to identifying hazards, developing scenarios, determining the adequacy of safeguards, and...

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