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Technical Presentations

Acetylene Converter Safety Systems

Apr 4, 2012
Nelson Shen
Acetylene is produced as a by-product during the pyrolysis cracking of hydrocarbons in ethylene plant furnaces. Typically the acceptable acetylene contaminant level in the polymer grade ethylene product is in the range of 1 ppmv or lower. Since acetylene will fractionate with ethylene, it needs to...

Major Turnaround in An Olefins Plant: A Process Safety Point of View

Apr 4, 2012
Pablo Ricardo Barrera
The process safety management in an industrial plant is a critical success factor for companies integrated in a global market. The equipments should have maximized performance and operational runlenght without compromising process safety. The challenge for excellence performance drives companies to...

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,...

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