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Conference Presentations - 2012 AIChE Spring Meeting and Global Congress on Process Safety

Service Life Prediction of 9% Ni Steel LNG Storage Tank Using Fatigue Analysis

Apr 5, 2012
Seung-Rim Lee
As the design life expiration date(about 25 years) approaches for domestic LNG storage tank, the issue of tank lifetime extension is paid more and more attention by the Korea LNG industry. Recently, Korea Gas Safety Corporation is carrying out a project for developing technologies and standards for...

Designing LNG Vapor Dispersion Exclusion Zones to Protect the Public

Apr 5, 2012
Jerry Havens
The LNG industry, if not the entire energy industry, may be at a crossroad. Expectation of large shale gas supplies in the United States, with a backdrop of international economies in precarious states, makes more uncertain the promise of major investments in LNG import facilities. Already, a...

Galvanic Corrosion Between Dissimilar Metals

Apr 5, 2012
Richard Rolke
A Dow USGC cracker suffered a tube failure on a cracked gas compressor inner stage cooler after ten plus years of service. To further extend the equipment life, the decision was made to replace the tube bundle and upgrade the metallurgy of the tubes from admiralty brass to Duplex stainless steel...

Modeling of LNG Spills Into Trenches and Troughs

Apr 5, 2012
Nicolas F. Ponchaut
Trenches and troughs are commonly used in LNG storage and transfer facilities to contain potential LNG spills. The trenches are concrete-lined rectangular channels dug into the ground. They are typically slightly inclined from the horizontal to direct the flow of LNG towards the sump and they are...

Validation of PHAST Dispersion Model As Required for USA LNG Siting Applications

Apr 5, 2012
Henk W.M. Witlox
PHMSA in consultation with FERC has issued guidance relating to approval in the USA of atmospheric dispersion models for LNG siting applications. This guidance includes a Model Evaluation Protocol (MEP), and an associated experimental database against which the model needs to be validated. Final...

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