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Agenda
- What is LNG?
- How is it transported?
- What if it spills?
- Conclusion
Liquefied Natural Gas (LNG) 101 LT Nick Woessner, P.E. Liquefied - - PowerPoint PPT Presentation
Liquefied Natural Gas (LNG) 101 LT Nick Woessner, P.E. Liquefied - - PowerPoint PPT Presentation
Liquefied Natural Gas (LNG) 101 LT Nick Woessner, P.E. Liquefied Gas Carrier Inspector Agenda What is LNG? How is it transported? What if it spills? Conclusion Liquefied Natural Gas (LNG) Properties Methanes flammable
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Liquefied Natural Gas (LNG) Properties
- Methane’s flammable range is 5-14%
- Methane is lighter than air
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Liquefied Natural Gas (LNG) Properties
- Cooled to -260°F (-162°C)
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Liquefied Natural Gas (LNG) Transportation
- Transported safely at sea since 1960
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Liquefied Natural Gas (LNG) Transportation
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What if there is a Liquefied Natural Gas (LNG) spill?
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Factors Affection Vapor Dispersion
- The surface it is released on
- The amount released
- Air temperature
- Surface temperature
- Wind speed & direction
- Location of ignition sources
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Cryogenic Hazard
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Prevent Ignition
- Flammable Range 5-15%
- No smoking
- No hot or cold work
- Use non-sparking tools
- Use intrinsically safe or explosion proof
electrical equipment
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What if the spill catches fire?
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What if the spill catches fire?
- Use a dry chemical firefighting agent
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Environmental Effects
- LNG is not a marine environmental hazard
– Not toxic, not corrosive – Floats on water – Evaporates when spilled on ground or water – Leaves no trace or residue
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Conclusion
- LNG is a cryogenic, liquefied gas
- LNG spills will disperse as it warms
- Flammable range is 5-15% by volume
- 40,000 shipments of three billion cubic meters
LNG were safely transported since 1970 without serious accidents
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