Process Safety

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Process Safety Boot Camp

Instructor-led (classroom) Course
This intensive 4-day course is also offered periodically throughout the year to the broader chemical engineering public. Taught jointly by process safety veterans with decades of experience at major companies from the process industries, the course is highly interactive.

Center for Chemical Process Safety (CCPS)

CCPS was established in 1985 to focus on engineering and management practices that can prevent and mitigate catastrophic accidents involving release of hazardous materials. CCPS is supported by sponsors in the chemical and hydrocarbon process industries and active worldwide via conferences, books, databases, education, research, and more.

Portfolio Risk Management for Process Safety

Mar 14, 2011
Georges Melhem
A majority of PSM tools and risk methodologies are focused on risks at individual sites or process units. For example, PHA risk ranking matrices are frequently cast in terms of consequences that occur at a plant level. However, corporations with many operating facilities need to find ways to...

Using the HAZOP Study and LOPA to Generate Ideas for Inherently Safer Designs

Mar 14, 2011
Steven T. Maher
Fundamental changes in a chemical process are most cost-effective at early stages of a design, and specific Inherently Safer Design evaluations are frequently performed at these early stages to identify fundamental improvements that can signicantly decrease the magnitude of the consequences...

A Work Process for Revalidating LOPAs and Other Risk Analyses

Mar 14, 2011
Timothy J. Wagner
The Chemical Process Industry (CPI) has long recognized the necessity of periodically revalidating Process Hazard Analyses (PHAs), such as Hazard and Operability Studies and What-if analyses. CCPS has published a book which describes this work process titled Revalidating Process Hazard Analyses...

Inherently Safer Acids - A Case Study on the Application of Polyelectrolytes

Mar 14, 2011
Elliot M. Wolf
Strong acids, such as aqueous hydrochloric acid, are commonly used in the chemical process industry to purify streams or remove particulates from raw material, product, and waste streams. The benefits of HCl are its' low cost, large dissociation constant, and stability over time. However, the...

Inherently Safer Design – Not Only about Reducing Consequences!

Mar 14, 2011
Dennis C. Hendershot
Process risk is a function of both the likelihood of occurance of an incident, and of the consequences of the incident. There is a common perception that inherently safer design focuses solely on reducing or eliminating the consequences. However, inherently safer design can also focus on the...

Inherent Safety In Front End Engineering

Mar 14, 2011
Ian Sutton
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 ?Eliminate? option is best applied. For example, in the early stages of one design the process engineers had come up with a system of three knockout...

Specifying Reliability Performance to Meet PSM Expectations

Mar 14, 2011
Kenneth P. Bloch
Process Hazard Analysis (PHA) and Mechanical Integrity (MI) programs are two of the fourteen elements that the Process Safety Management (PSM) Standard uses to prevent or minimize the consequences of catastrophic releases of toxic, reactive, flammable, or explosive chemicals. Experience proves that...

Near Miss Reporting Behavior and the Safety Climate – A Scenario-Based Study

Mar 14, 2011
Sunil D. Lakhiani
In the aftermath of the March, 2005 incident at BP's Texas City Refinery, the U.S. Chemical Safety Board cited concerns about ?the effectiveness of the safety management system? and ?the corporate safety culture? at that refinery. Included in the Baker Panel's findings were discussions about...

Methods for Precluding the Existence of a Dust-Explosion Hazard

Mar 14, 2011
Richard Prugh
The "generic" standard for preventing fires and explosions involving combustible dusts is the National Fire Protection Association publication NFPA 654. In this document, fifteen of the requirements are prefaced with the phrase "if an explosion hazard exists", and an additional four requirements...

The Buncefield Explosion: Were the Resulting Overpressures Really Unforeseeable?

Mar 14, 2011
Jérôme R. Taveau
On Sunday 11 December 2005, a severe unconfined vapour cloud explosion followed by several tank fires occurred at the Buncefield oil storage depot in England, causing widespread damage to homes and businesses surrounding the site, hopefully without any victim. The damage caused by the resulting...

Implementation of PSM In Capital Projects

Mar 14, 2011
Charles A. Soczek
It is critical to embed Process Safety Management in the capital project system to help achieve a safe start-up. This is the foundation for assuring safe operations throughout the life of the process, especially in the construction of facilities for high process hazards. Today's PSM system,...

Using LOPA for Sil Assignment: A Tale of Two Plants

Mar 13, 2011
Michael S. Schmidt
Two plants operated by the same company have ?identical? ammonium nitrate (AN) solution pump installations. Yet the LOPA teams concluded that the safety instrumented functions to protect those pumps needed different safety integrity levels (SILs). Despite the similarity of the installations, the...

Operational Discipline: Does Your Organization Do the Job Right Every Time?

Mar 13, 2011
Brian D. Rains
Operational Discipline: Does your organization &'do the job right every time&' Most organizations, especially those involved in handling hazardous materials or performing hazardous operations, invest considerable effort in preparing written instructions and procedures. Written procedures...

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