| (a) For each block one-hour period of operation, the
owner or operator shall calculate total SO2 emissions
generated by each production unit using the following equation.
Attached Graphic
(b) The owner or operator shall calculate the SO2 emissions from Incinerator + HRSG (EPN 13A),
Dryer Stack Units Numbers 1 and 2 (EPN 7A), Dryer Stack Units Number
3 (EPN 12A), and Flare 4 (EPN FLARE 4) for each block one-hour period
of operation during which emissions of SO2 are
emitted from the emission points listed in this subsection, using
the following equations.
(1) for the Incinerator + HRSG (EPN 13A), calculate
the emission rate using the following equation).
Attached Graphic
(2) For Dryer Stack Units No. 1 & 2 (EPN 7A), calculate
the emission rate using the following equation.
Attached Graphic
(3) For Flare 4 (EPN Flare 4), calculate the emission
rate using the following equation.
Attached Graphic
(4) For Dryer Stack Unit No. 3 (EPN 12A), calculate
the emission limit using the following equation.
Attached Graphic
(c) The owner or operator shall install, calibrate,
maintain, and operate one or more totalizing fuel flow meters, consistent
with manufacturer's specifications, with an accuracy of ±5%,
to continuously measure the feed rate of carbon black oil feedstock
supplied to each carbon black production unit.
(d) The owner or operator shall install, calibrate,
maintain, and operate totalizing tail gas flow meters, consistent
with manufacturer’s specifications, with an accuracy of ±5%,
to continuously measure the volumetric flow rate of tail gas to each
tail gas combustion device covered under §112.112 of this title
(relating to Control Requirements). Tail gas combustion devices include
the dryers, Incinerator + HRSG, and Flare 4.
(e) The owner or operator shall use a continuous data
acquisition system that continuously measures, calculates, and records
the following quantities:
(1) the volumetric flow rate of tail gas to the Incinerator
+ HRSG (EPN 13A) and Flare 4 (EPN Flare 4) from each production unit;
(2) the volumetric flow rate of tail gas to the carbon
black dryers in each production unit;
(3) the total volumetric flow rate of tail gas from
each production unit;
(4) for each production unit, the ratio of quantities
in paragraphs (1) and (3) of this subsection, identified as "πincin ", which is the split coefficient for
the Incinerator + HRSG and for Flare 4 used in the calculations in
subsection (b) of this section; and
(5) for each production unit, the ratio of quantities
in paragraphs (2) and (3) of this subsection, identified as "πdryer ", which is the split coefficient for
the dryers used in the calculations in subsection (b) of this section.
(f) The owner or operator shall install, calibrate,
maintain, and operate the continuous data acquisition system specified
in subsection (e) of this section in accordance with the manufacturer's
recommended procedures.
(g) The owner or operator shall measure twice daily
(at least four hours apart) the sulfur content by weight of the carbon
black oil in the feed to each production unit according to the requirements
of §112.115(b) of this title (relating to Approved Test Methods).
(h) For each grade of carbon black produced, the owner
or operator shall measure daily the sulfur content by weight of the
carbon black produced by each carbon black production unit in accordance
with §112.115(c) of this title.
(i) The owner or operator shall determine the amount
of each grade of carbon black produced by each carbon black production
unit each hour.
(j) In lieu of the monitoring requirements of §112.113(a)
- (i) of this section, the owner or operator may install, calibrate,
and maintain a continuous emissions monitoring system to monitor exhaust
sulfur dioxide (SO2) from Incinerator
+ HRSG (EPN 13A), Dryer Stack Units Nos. 1 & 2 (EPN 7A), or Dryer
Stack Units No. 3 (EPN 12A) in accordance with the requirements of
40 Code of Federal Regulations (CFR) §60.13, 40 CFR Part 60,
Appendix B, Performance Specification 2 and 6, for SO2, and 40 CFR Part 60, Appendix F, quality
assurance procedures. If a CEMS is not used to monitor the emissions
from all three EPNs, monitoring requirements in §112.113(a) -
(i) continue to apply for EPNs without a CEMS.
(k) Continuous monitoring data collected in accordance
with requirements in this section must undergo an appropriate quality
assurance and quality control process and be validated for at least
95% of the time that the monitored emission point has emissions; an
owner or operator must utilize an appropriate data substitution process
based on the most accurate methodology available, which is at least
equivalent to engineering judgement, to obtain all missing or invalidated
monitoring data for the remaining period the monitored emission point
has emissions.
(l) Minor modifications to monitoring methods may be
approved by the executive director. Monitoring methods other than
those specified in this section may be used if approved by the executive
director and validated by 40 CFR Part 63, Appendix A, Test Method
301. For the purposes of this subsection, substitute "executive director"
in each place that Test Method 301 references "administrator." These
validation procedures may be waived by the executive director or a
different protocol may be granted for site-specific applications.
Minor modifications that may be approved under this subsection include
increases in the frequency of monitoring provided appropriate quality
assurance control, accuracy specifications, and data validation requirements
are specified and no less stringent than monitoring requirements for
a comparable EPN in this subchapter.
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