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Technical Presentations

Working Under Pressure (How do you manage pressure hazards?)

Apr 4, 2012
Dr. Angela E. Summers
Industry is increasingly moving towards utilizing High Integrity Protective Systems (HIPS) to reduce flare loading and prevent the environmental impact of pressure venting. HIPS are becoming the option of choice to help alleviate the need to replace major portions of the flare system in existing...

Impact of Guidelines for Independent Protection Layers and Initiating Events

Apr 4, 2012
J. Wayne Chastain
Layers of Protection Analysis (LOPA) was introduced about 15 years ago as a simplified risk assessment method between HAZOP (Process Hazard Analysis [PHA]) and quantitative risk assessment (QRA). This introduction was timely; LOPA was quickly adopted world-wide. The rules for independent protection...

On the Catastrophic Explosion of the AZF Plant in Toulouse (September 21, 2001)

Apr 4, 2012
Georges Guiochon
On the Catastrophic Explosion of the AZF plant in Toulouse (September 21, 2001) Georges Guiochon and Laurent Jacob Department of Chemistry, University of Tennessee, Knoxville, TN, 37996-1600, USA During the morning of September 21, 2001, a warehouse containing ca. 300 metric tons of production...

Evaluation of Dispersion Models for LNG Siting Applications

Apr 4, 2012
Andrew Kohout
The federal safety standards for LNG facilities under 49 CFR Part 193 approves the use of specific dispersion models for performing vapor-gas dispersion exclusion zones. In addition, provisions allow for the use of alternative models if approved by PHMSA. In 2010, PHMSA, in consultation with FERC,...

Two Incompetent Workers; Too Close for Comfort ñ Part 1

Apr 4, 2012
Mike Broadribb
Learning from experience is one of the four pillars of Risk-Based Process Safety. Incidents that occur at one facility often provide opportunities to strengthen management systems at other facilities. Sharing the technical lessons learned from incidents is morally right and vital to improving...

Using LOPA to Establish SILs for Power Outage Protection

Apr 4, 2012
Carlos A. Barrera
Catastrophic incident root causes often may be correlated with power outages. An unanticipated power outage may be an initiating event that leads to a process upset or even an emergency shutdown of a process unit. If the planning and implementation of the emergency shutdown are managed incorrectly...

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