40 CFR Appendix Table W-6A to Subpart W of Part 98 - Default Methane Leaker Emission Factors for LNG Import and Export Equipment

Table W-6A to Subpart W of Part 98 - Default Methane Leaker Emission Factors for LNG Import and Export Equipment
LNG import and export equipment Emission factor
(scf/hour/component)
If you survey using any of the methods in § 98.234(a)(1)
through (6)
If you survey using Method 21 as
specified in
§ 98.234(a)(7)
Leaker Emission Factors - LNG Terminals Components, LNG Service
Valve 1.19 0.23
Pump Seal 4.00 0.73
Connector 0.34 0.11
Other 1 1.77 0.99
Leaker Emission Factors - LNG Terminals Components, Gas Service
Valve 2 14.84 9.51
Connector 5.59 3.58
Open-Ended Line 17.27 11.07
Pressure Relief Valve 39.66 25.42
Meter and Instrument 19.33 12.39
Other 3 4.1 2.63

1 “Other” equipment type for components in LNG service should be applied for any equipment type other than connectors, pumps, or valves.

2 Valves include control valves, block valves and regulator valves.

3 “Other” equipment type for components in gas service should be applied for any equipment type other than valves, connectors, flanges, open-ended lines, pressure relief valves, and meters and instruments, as specified in § 98.232(h)(7) and (8).

[81 FR 86518, Nov. 30, 2016]

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