Document ID: chunk:federal_register_of_legislation:F2024C00833:reg:8:p4
Version: federal_register_of_legislation:F2024C00833
Segment Type: reg
Provision Reference: reg 8 (pt 4/6)
Character Range: 398659–401324

of methane and carbon dioxide (other than emissions that are vented or flared) released during a year from the operation of a facility that is constituted by natural gas processing:
 (a) method 1 under section 3.73Q;
 (b) method 2 under section 3.73R;
 (c) method 3 under section 3.73S.
 Note: There is no method 4 for this Division.
 (2) However, for incidental emissions another method may be used that is consistent with the principles in section 1.13.
 (3) If method 2 is used for a facility, all other available methods 2 must be used in Divisions 3.3.6A, 3.3.6B, 3.3.6C, 3.3.7A and 3.3.7B if those Divisions are applicable to the facility.
 (4) If method 3 is used for a facility, all other available methods 3 must be used in Divisions 3.3.6A, 3.3.6B, 3.3.6C, 3.3.7A and 3.3.7B if those Divisions are applicable to the facility.

3.73Q  Method 1—natural gas processing (other than emissions that are vented or flared)
 (1) Method 1 is:

Eij  = Σjs(Qis × EFijs) × Sij/SDij

where:
Eij is the fugitive emissions (other than emissions that are vented or flared) of gas type (j), being methane or carbon dioxide, from the natural gas processing during the year, measured in CO2‑e tonnes.
Σjs is the total emissions of gas type (j), being methane or carbon dioxide, measured in CO2‑e tonnes and estimated by summing up the emissions released from each natural gas processing station (s).
Qis is the quantity of unprocessed natural gas (i) that passes through the natural gas processing station (s) during the year, measured in tonnes, in accordance with Division 2.3.6.
EFijs is the emission factor for gas type (j), being methane or carbon dioxide, for the unprocessed natural gas (i) that passes through the natural gas processing station (s) during the year as determined under subsection (2) or (3), measured in tonnes of gas (leakage) per tonne of gas throughput.
Sij is the measured share of gas type (j), being methane or carbon dioxide, in the unprocessed gas (i), by volume, measured in accordance with Division 2.3.3 and the principles in section 1.13.
SDij is the default share of gas type (j) in the unprocessed gas (i), for methane SD is 0.832 and for carbon dioxide SD is 0.0345.
 (2) For EFijs in subsection (1), EFijs for methane is given by the following formula:
EFijs = GWPmethane × 0.6369 × Qi‑0.4801
where:
EFijs is the emission factor for methane (j) measured in CO2‑e tonnes per tonne of natural gas that passes through the natural gas processing station (s) during the year.
Qi is the quantity of unprocessed natural gas that passes through the natural gas processing station during the year, measured in tonnes in accordance with Division