7 Del. Admin. Code § 1120-3.0
Current through Register Vol. 28, No. 1, July 1, 2024
Section 1120-3.0 - Standards of Performance for Nitric Acid Plants3.1 Applicability. The provisions of 3.0 of this regulation are applicable to each nitric acid production unit, which is the applicable source.3.2 Standard for Nitrogen Oxides. On and after the date on which the performance test is completed no person subject to the provisions of 3.0 of this regulation shall discharge or cause the discharge into the atmosphere of nitrogen oxides which are: 3.2.1 In excess of 3.0 lbs. per ton of acid produced (1.5 kg. per metric ton) expressed as HNO3.3.2.2 10% opacity or greater.3.3 Emission Monitoring 3.3.1 A continuous monitoring system for the measurement of nitrogen oxides shall be installed, calibrated, maintained, and operated by the person responsible for the applicable source. The pollutant gas used to prepare calibration gas mixtures under 2.1 of this regulation, Performance Specification 2 and for calibration checks under 1.3.5 of this regulation shall be nitrogen dioxide NO2. The span shall be set at 500 ppm of nitrogen dioxide. Reference Method 7 shall be used for conducting monitoring system performance evaluations under 1.3.3 of this regulation.3.3.2 The responsible person shall establish a conversion factor, approved by the Department for the purpose of converting monitoring data into units of the applicable standard (kg/metric ton, lb/short ton). The conversion factor shall be established by measuring emissions with the applicable reference method tests. Using only that portion of the continuous monitoring emission data that represents emission measurements concurrent with the reference method test periods, the conversion factor shall be determined by dividing the reference method test data averages by the monitoring data averages to obtain a ratio expressed in units of the monitoring data, i.e., kg/metric ton per ppm (lb/short ton per ppm). The conversion factor shall be reestablished during any performance test under 1.4 of this regulation or any continuous monitoring system performance evaluation under 1.3.3 of this regulation.3.3.3 The responsible person shall record the daily production rate hours of operation.3.3.4 For the purpose of reports required under 1.2.3 of this regulation, periods of excess emissions that shall be reported are defined as any three-hour period during which the average nitrogen oxides emissions (arithmetic average of three continuous one-hour periods) as measured by a continuous monitoring system exceed the standard under 3.2.1 of this regulation.3.4 Test Methods and Procedures. All performance tests shall be conducted while the applicable source is operating at or above the maximum acid production rate at which such facility will be operated and under such other relevant conditions as the Secretary shall specify based on representative performance of the applicable source.12/07/1988
7 Del. Admin. Code § 1120-3.0