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The LNG Liquefaction Process - Simply Fancy Household Appliances
The document discusses the liquefied natural gas (LNG) value chain from field development through power generation. It focuses on the liquefaction process, which involves treating natural gas to remove contaminants and components like water, carbon dioxide, and heavier hydrocarbons. The treated gas is then refrigerated and liquefied in a process called liquefaction to reduce its volume by over 600 times, allowing for transportation by ship versus pipeline. Key aspects of the liquefaction process include inlet treating, drying, refrigeration to very cold temperatures in a coldbox, and product specifications for the LNG.
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The LNG Liquefaction Process - Simply Fancy Household Appliances
- 1. The LNG LiquefactionProcess - Fancy Household Appliances Marjan Roos Global Process Engineering Chief Bechtel Oil Gas & Chemicals, Houston
- 2. LNG Value Chain Field Development PipelineLiquefaction Shipping Regas Terminal Power Generation
- 3. LNG Value Chain(cont’d) Liquefaction Shipping Regas Terminal Power Generation Field Development Pipeline
- 4. LNG Value Chain(cont’d) Shipping Regas Terminal Power Generation Field Development Pipeline Liquefaction
- 5. LNG Value Chain(cont’d) Regas Terminal Power Generation Field Development Pipeline Liquefaction Shipping
- 6. LNG Value Chain(cont’d) Power Generation Field Development Pipeline Liquefaction Shipping Regas Terminal
- 7. LNG Value Chain(cont’d) Field Development Pipeline Liquefaction Shipping Regas Terminal Power Generation
- 8. Natural Gas –Where is it
- 9. Natural Gas –Who Wants it
- 10. Natural Gas –How to Transport • Pipeline – Max 6000 km onshore – Max 3000 km offshore – Unsuitable across deep seabed • Ship – Gas needs to be liquefied to reduce volume
- 11. Reduce Volume forTransportation Natural gas • Atmospheric pressure • Ambient temperature Liquefied Natural Gas • Atmospheric pressure • -160°C • 1/600th of gas volume
- 12. LNG – ProductSpecifications • Contaminants – Mercury – Hydrogen Sulfide • Freezing Components – Water – CO2 – “Heavies” • Inert Gas – Nitrogen, CO2
- 13. The liquefaction process Natural Gas AcidGas Water Nitrogen Heavies LNG
- 14. Inlet Treating –Washing Machine
- 15. Inlet Treating -Dryer
- 16. Liquefaction – Refrigerator/Freezer COLDCOLDER COLDEST
- 17. Coldbox Cryogenic Equipment,piping and valves in Ethylene, Methane and NRU is “packaged” in a coldbox. The “box” is the size of a multi-story building and is filled with expanded-perlite insulation material, covering and insulating all equipment.
- 18. Why does LNGnot evaporate???
- 19. LNG DOES evaporate! •LNG “boils” at -160 °C • Evaporations requires heat • The LNG cools it self by evaporating some of it’s liquid – auto refrigeration • Compare with acetone “boiling” off your finger tips – they feel cold
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