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Emission Reduction Options for the Liquefied Natural Gas (LNG) Storage, Import, and Export Segment

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The EPA estimates methane emissions from the oil and natural gas industry in its annual Inventory of U.S. Greenhouse Gas Emissions and Sinks. The liquefied natural gas (LNG) storage, import, and export segment contributes 1% to the total methane emissions from the oil and natural gas industry. The chart on the right shows the distribution of the top emission sources* in this segment, which represent 80% of the total emissions from offshore petroleum and natural gas production. Click on each emission source category to view one of many appropriate, cost-effective methane mitigation options below. A full list of emission mitigation options can be found here.

*Note: These emission estimates have an uncertainty associated with them. Not all facilities will have the same distribution of emissions between sources. Also, some emission sources are only present in a few facilities and may not be represented in the pie chart.

This pie chart breaks out three major emission sources from the Storage, Import, and Export segment.  The largest source of emissions is from Reciprocating Compressors, which account for 50% of emissions. Centrifugal Compressors are second, accounting for 17%.  Fugitives are third, making up 13%. Other emission sources make up the remaining 20% of emissions.

“Other” Emission Sources: Uncombusted Methane, Station Venting

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+ Reducing Methane Emissions from Reciprocating Compressor Rod Packing

+ Replacing Wet Seals with Dry Seals in Centrifugal Compressors

+ Directed Inspection and Maintenance at Compressor Stations

Need Help?
EPA can assist with all questions related to technologies and practices to reduce methane emissions. To contact us click here.


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