Search form

Elements of Process Safety

The four pillars and the twenty elements of risk based process safety can be designed and implemented at varying levels of rigor to optimize process safety management, performance, efficiency, and effectiveness.

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,...

Secondary Dust Explosions: How to Prevent Them or Mitigate Their Effects?

Mar 14, 2011
Jérôme R. Taveau
Dust explosions are frequent and particularly devastating in the process industries, and secondary dust explosions are the most severe ones. A secondary dust explosion can occur when the blast wave from a primary explosion entrains dust layers present in the plant, creating a large dust-air...

It's People, Stupid! Human Factors In Incident Investigation

Mar 14, 2011
Mike Broadribb
People have inherent strengths and weaknesses which can affect their performance. Issues such as fatigue, emotional stress, and motivation can adversely affect performance. Their performance is also influenced by factors external to the individual, such as poor equipment design, inadequate training...

Safety Studies for Reformatsky Chemistry In a Meso-Scale Continuous Process System

Mar 13, 2011
Gabriel Loh
The production of fine chemicals and pharmaceuticals has been traditionally achieved via batch processes. More recently, there has been interest in using multiscale (meso- and micro-) reactors for the production of these fine chemicals and pharmaceuticals. These efforts in process intensification...

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...

Inherently Safer Reactor Design for Complex Reactions Based On Calorimetry Studies

Mar 13, 2011
Alba Lucia Pineda
A number of reactive processes of the agrochemical, fine-chemicals and pharmaceutical industries involve thermally unstable and/or toxic reactants, products or intermediates, for which the chemistry, thermochemistry and thermodynamic properties are barely known. They frequently employ multipurpose...

PSM Auditing Dilemmas

Mar 13, 2011
Michael Hazzan
In most PSM audits, the audit team will face one or more situations that represent a dilemma. These dilemmas usually require the individual auditor and/or the audit team leader resolve the situation in the field. These ?on the fly? resolutions require both astute judgment and practical solutions...

Improvement of BLEVE Overpressure Method Using Historical Data

Mar 13, 2011
Fei Chen
The current CCPS/TNO's BLEVE (Boiling Liquid Expanding Vapor Explosion) overpressure methodology is derived from that published by Baker in 1975. This methodology assumes isentropic expansion work and uses Baker's graphical method and high-explosive correlation to calculate BLVE energy and...

Process Safety Performance Tool

Mar 13, 2011
Clarissa Sossmeier da Silva, Pablo Ricardo Barrera
The process safety management in a petrochemical company is a key factor for sustainability, since intends to prevent or minimize the consequences of a major accident due to a release of flammable, combustible, or toxic substance from a process. Maintaining and improving a process safety management...

Management of Change (MOC) Auditing System

Mar 13, 2011
R. Wayne Garland
Our company has discovered that regular auditing of the MOC process is essential to enforcing its proper use. We have developed an audit that can be performed by plant personnel to identify the effectiveness of our MOC process in 2 critical categories: (1) Identifying changes and initiating MOC for...

Quantitative Models for Assessing MOC Performance

Mar 13, 2011
Rainer Hoff
The safety community, bolstered by the PSM regulations, has emphasized the importance of proper management of change to ensure safe, reliable and economic operation of chemical plants and refineries. Yet, at many sites, the MOC process is often harshly criticized as being "too inefficient", "too...

Pages

Subscribe to Elements of Process Safety