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REGULATION FOR THE MANDATORY REPORTING OF GREENHOUSE GAS EMISSIONS - page 37 / 137

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Clinker Emission Factor (EFCli). Cement plant operators shall calculate a plant-specific clinker emission factor for each report year based on the percent of measured CaO and MgO content in the clinker and adjusted to account for non-carbonate CaO and MgO using the Clinker Emission Factor equation specified in this section, 95110(c)(1)(A). Each fraction of non-carbonate sources (e.g., steel slag, calcium silicates or fly ash) of CaO and MgO shall be subtracted from the total amount of CaO and MgO content of the clinker.

Clinker Emission Factor:

EFCli

= [(CaO content – non-carbonate CaO) * Molecular ratio of CO2/CaO]

  • +

    [(MgO Content – non-carbonate MgO) * Molecular Ratio of

CO2/MgO]

Where: CaO Content (by weight) Molecular Ratio of CO2/CaO MgO Content (by weight) Molecular Ratio of CO2/MgO

= = = =

Non-carbonate CaO (by weight) Non-carbonate MgO(by weight)

= =

CaO content of Clinker (%) 0.785 MgO content of Clinker (%) 1.092 Non-carbonate CaO of Clinker (%) Non-carbonate MgO of Clinker (%)

CKD Emission Factor. Operators of cement plants that generate CKD and do not recycle the CKD back to the kiln shall calculate a plant-specific CKD emission factor. The CKD emission factor shall be calculated using the CKD Emission Factor equation (EFCKD) and the Plant-specific CKD Calcination Rate (d) equation specified in this section (95110(c)(1)(B).

CKD Emission Factor

EFCli *d

EFCKD

1EFCli

1

EFCli

*d

1EFCli

Where: EF EF d CKD Cli

= = =

CKD Emission Factor Clinker Emission Factor CKD Calcination Rate

37

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