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REGULATION FOR THE MANDATORY REPORTING OF GREENHOUSE GAS EMISSIONS - page 63 / 137

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Qr = volumetric flow rate of exhaust gas before entering the emission control system (dscm/min or dscf/min) Qa = volumetric flow rate of air to regenerator as determined from control room instrumentation (dscm/min or dscf/min) %CO2 = percent CO2 concentration in regenerator exhaust, percent by volume – dry basis %CO = percent CO concentration in regenerator exhaust, percent by volume – dry basis %O2 = percent oxygen concentration in regenerator exhaust, percent by volume – dry basis Qoxy = volumetric flow rate of O2 enriched air to regenerator as determined from control room instrumentation (dscm/min or dscf/min) %Oxy = O2 concentration in O2 enriched air stream inlet to regenerator, percent by volume – dry basis

Qr shall be determined in the following manner:

Qr = (79 * Qa + (100- %Qxy) * Qoxy

)/(100 - %CO2 -%CO - %O2)

Where:

Qr = volumetric flow rate of exhaust gas from regenerator before entering the emission control system (dscm/min or dscf/min) Qa = volumetric flow rate of air to regenerator, as determined from control room instrumentation (dscm/min or dscf/min) %Qxy = oxygen concentration in oxygen enriched air stream, percent by volume – dry basis Qoxy = volumetric flow rate of O2 enriched air to regenerator as determined from catalytic cracking unit control room instrumentation (dscm/min or dscf/min) %CO2 = carbon dioxide concentration in regenerator exhaust, percent by volume – dry basis %CO = carbon monoxide concentration in regenerator exhaust, percent by volume – dry basis. When no auxiliary fuel is burned and a continuous CO monitor is not required, assume %CO to be zero %O2 = O2 concentration in regenerator exhaust, percent by volume – dry basis

(B) The operator shall calculate a daily average coke burn rate (CRd) for each day of operation as the sum of hourly coke burn rate determinations for each hour of operation divided by the number of operational hours per day. CRd (lb/day) shall be converted to (kg/day).

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