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Gas Liquefaction Katherine D’Ambrosio. Liquefaction  The refinery process of converting natural gas or other gaseous hydrocarbons into longer chain hydrocarbons.

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Presentation on theme: "Gas Liquefaction Katherine D’Ambrosio. Liquefaction  The refinery process of converting natural gas or other gaseous hydrocarbons into longer chain hydrocarbons."— Presentation transcript:

1 Gas Liquefaction Katherine D’Ambrosio

2 Liquefaction  The refinery process of converting natural gas or other gaseous hydrocarbons into longer chain hydrocarbons such as gasoline or diesel fuel

3 Methods  Compress the gas at temperatures less than its critical temperature  Make the gas do work against an external force, causing the gas to lose energy and change to a liquid state  Make gas do work against its own internal forces, causing it to lose energy and liquefy.  Cascade process - use one liquefied gas to liquefy another  Joule-Thomson effect - compress and then rapidly expand the gas

4 Liquefaction Temperatures

5 Liquid Natural Gas (LNG)  Cooled until it -160°C  Reduces volume 600 times  Colorless, Odorless and Non-Toxic  Safe to transport and store  Shipped and Stored at Atmospheric Pressure

6 LNG Chain Gas Well Field Processing Transmission Pipeline Liquefaction Shipping Receiving Terminal Market

7 Natural Gas Liquefaction Process Compression Refrigerant Loop LNG GAS Storage Treatment and Purification -161ºC Removes condensate, CO 2, Mercury, and H 2 S Causes dehydration

8 Environmental Advantages  Virtually no ash, sludge or hazardous waste is produced  Particulate emissions are approximately 95% less than burning coal  Over Coal, Distillate and Naphtha LNG has lower: Sulfur dioxide emissions (by 100%), Nitrogen Oxide emissions (by 75%) Carbon Dioxide emissions (by 50%)

9 Questions?


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