Where:
E = Emission rate of PM, kg/Mg (lb/ton) of coke burn-off.
cs = Concentration of PM, g/dscm (gr/dscf).
Qsd = Volumetric flow rate of effluent gas, dscm/hr (dscf/hr).
Rc = Coke burn-off rate, Mg/hr (ton/hr) coke.
K = Conversion factor, 1,000 g/kg (7,000 gr/lb).
Rc = K1Qr (%CO2 + %CO) + K2Qa-K3Qr (%CO/2 + %CO2 + %O2) + K3Qoxy (%Ooxy)
Where:
Rc = Coke burn-off rate, kilograms per hour (kg/hr) (lb/hr).
Qr = Volumetric flow rate of exhaust gas from fluid catalytic cracking unit regenerator before entering the emission control system, dscm/min (dscf/min).
Qa = Volumetric flow rate of air to fluid catalytic cracking unit regenerator, as determined from the fluid catalytic cracking unit control room instrumentation, dscm/min (dscf/min).
Qoxy = Volumetric flow rate of O2 enriched air to fluid catalytic cracking unit regenerator, as determined from the fluid catalytic cracking unit control room instrumentation, dscm/min (dscf/min).
%CO2 = Carbon dioxide concentration in fluid catalytic cracking unit regenerator exhaust, percent by volume (dry basis).
%CO = CO concentration in FCCU regenerator exhaust, percent by volume (dry basis).
%O2 = O2 concentration in fluid catalytic cracking unit regenerator exhaust, percent by volume (dry basis).
%Ooxy = O2 concentration in O2 enriched air stream inlet to the fluid catalytic cracking unit regenerator, percent by volume (dry basis).
K1 = Material balance and conversion factor, 0.2982 (kg-min)/(hr-dscm-%) [0.0186 (lb-min)/(hr-dscf-%)].
K2 = Material balance and conversion factor, 2.088 (kg-min)/(hr-dscm) [0.1303 (lb-min)/(hr-dscf)].
K3 = Material balance and conversion factor, 0.0994 (kg-min)/(hr-dscm-%) [0.00624 (lb-min)/(hr-dscf-%)].
Es = F + A (H/Rc)
Where:
Es = Emission rate of PM allowed, kg/Mg (lb/ton) of coke burn-off in catalyst regenerator.
F = Emission standard, 1.0 kg/Mg (2.0 lb/ton) of coke burn-off in catalyst regenerator.
A = Allowable incremental rate of PM emissions, 43 g/GJ (0.10 lb/million Btu).
H = Heat input rate from solid or liquid fossil fuel, GJ/hr (million Btu/hr).
Rc = Coke burn-off rate, Mg coke/hr (ton coke/hr).
Rso2 = 100(Cso2(i) - Cso2(o)) / Cso2(i)
where:
Rso2 = 7-day average sulfur dioxide emission reduction, percent
Cso2(i) = sulfur dioxide emission concentration determined in § 60.106(h)(2) at the inlet to the add-on control device, ppmv
Cso2(o) = sulfur dioxide emission concentration determined in § 60.106(h)(2) at the outlet to the add-on control device, ppmv
100 = conversion factor, decimal to percent
Cadj = Cmeas[20.9c/(20.9-%O2)]
where:
Cadj = pollutant concentration adjusted to zero percent oxygen, ppm or g/dscm
Cmeas = pollutant concentration measured on a dry basis, ppm or g/dscm
20.9c = 20.9 percent oxygen-0.0 percent oxygen (defined oxygen correction basis), percent
20.9 = oxygen concentration in air, percent
%O2 = oxygen concentration measured on a dry basis, percent
Where:
ESOx = sulfur oxides emission rate calculated as sulfur dioxide, kg/hr (lb/hr)
CSOx = sulfur oxides emission concentration calculated as sulfur dioxide, g/dscm (gr/dscf)
Qsd = dry volumetric stack gas flow rate corrected to standard conditions, dscm/hr (dscf/hr)
K = 1,000 g/kg (7,000 gr/lb)
Where:
RSOx = Sulfur oxides emissions calculated as kg sulfur dioxide per Mg (lb/ton) coke burn-off.
ESOx = Sulfur oxides emission rate calculated as sulfur dioxide, kg/hr (lb/hr).
Rc = Coke burn-off rate, Mg/hr (ton/hr).
where:
Sf = fresh feed sulfur content expressed in percent by weight of fresh feed.
n = number of separate fresh feed streams charged directly to the riser or reactor of the fluid catalytic cracking unit.
Qf = total volumetric flow rate of fresh feed charged to the fluid catalytic cracking unit.
Si = fresh feed sulfur content expressed in percent by weight of fresh feed for the "ith" sampling location.
Qi = volumetric flow rate of fresh feed stream for the "ith" sampling location.
40 C.F.R. §60.106