40 CFR Table 2
Operating Limits
June 9, 2020
As stated in §63.9788, you must comply with the operating limits for affected sources in the following table:]
Open Table
| For . . . | You must . . . |
|---|---|
| 1. Each affected source listed in Table 1 to this subpart | a. Operate all affected sources according to the requirements to this subpart on and after the date on which the initial performance test is conducted or required to be conducted, whichever date is earlier; and |
| b. Capture emissions and vent them through a closed system; and | |
| c. Operate each control device that is required to comply with this subpart on each affected source during all periods that the source is operating, except where specified in §63.9792(e), item 2 of this table, and item 13 of Table 4 to this subpart; and | |
| d. Record all operating parameters specified in Table 8 to this subpart for the affected source; and | |
| e. Prepare and implement a written OM&M plan as specified in §63.9792(d). | |
| 2. Each affected continuous kiln that is equipped with an emission control device | a. Receive approval from the Administrator before taking the control device on the affected kiln out of service for scheduled maintenance, as specified in §63.9792(e); and |
| b. Minimize HAP emissions from the affected kiln during all periods of scheduled maintenance of the kiln control device when the kiln is operating and the control device is out of service; and | |
| c. Minimize the duration of all periods of scheduled maintenance of the kiln control device when the kiln is operating and the control device is out of service. | |
| 3. Each new or existing curing oven, shape dryer, and kiln that is used to process refractory products that use organic HAP; each new or existing coking oven and defumer that is used to produce pitch-impregnated refractory products; each new shape preheater that is used to produce pitch-impregnated refractory products; AND each new or existing process unit that is exhausted to a thermal or catalytic oxidizer that also controls emissions from an affected shape preheater or pitch working tank | Satisfy the applicable operating limits specified in items 4 through 9 of this table. |
| 4. Each affected continuous process unit | Maintain the 3-hour block average organic HAP processing rate (pounds per hour) at or below the maximum organic HAP processing rate established during the most recent performance test. |
| 5. Continuous process units that are equipped with a thermal oxidizer | Maintain the 3-hour block average operating temperature in the thermal oxidizer combustion chamber at or above the minimum allowable operating temperature for the oxidizer established during the most recent performance test. |
| 6. Continuous process units that are equipped with a catalytic oxidizer | a. Maintain the 3-hour block average operating temperature at the inlet of the catalyst bed of the oxidizer at or above the minimum allowable operating temperature for the oxidizer established during the most recent performance test; and |
| b. Check the activity level of the catalyst at least every 12 months. | |
| 7. Each affected batch process unit | For each batch cycle, maintain the organic HAP processing rate (pounds per batch) at or below the maximum organic HAP processing rate established during the most recent performance test. |
| 8. Batch process units that are equipped with a thermal oxidizer | a. From the start of each batch cycle until 3 hours have passed since the process unit reached maximum temperature, maintain the hourly average operating temperature in the thermal oxidizer combustion chamber at or above the minimum allowable operating temperature established for the corresponding period during the most recent performance test, as determined according to item 11 of Table 4 to this subpart; and |
| b. For each subsequent hour of the batch cycle, maintain the hourly average operating temperature in the thermal oxidizer combustion chamber at or above the minimum allowable operating temperature established for the corresponding hour during the most recent performance test, as specified in item 13 of Table 4 to this subpart. | |
| 9. Batch process units that are equipped with a catalytic oxidizer | a. From the start of each batch cycle until 3 hours have passed since the process unit reached maximum temperature, maintain the hourly average operating temperature at the inlet of the catalyst bed at or above the minimum allowable operating temperature established for the corresponding period during the most recent performance test, as determined according to item 12 of Table 4 to this subpart; and |
| b. For each subsequent hour of the batch cycle, maintain the hourly average operating temperature at the inlet of the catalyst bed at or above the minimum allowable operating temperature established for the corresponding hour during the most recent performance test, as specified in item 13 of Table 4 to this subpart; and | |
| c. Check the activity level of the catalyst at least every 12 months. | |
| 10. Each new kiln that is used to process clay refractory products | Satisfy the applicable operating limits specified in items 11 through 13 of this table. |
| 11. Each affected kiln that is equipped with a DLA | a. Maintain the 3-hour block average pressure drop across the DLA at or above the minimum levels established during the most recent performance test; and |
| b. Maintain free-flowing limestone in the feed hopper, silo, and DLA at all times; and | |
| c. Maintain the limestone feeder at or above the level established during the most recent performance test; and | |
| d. Use the same grade of limestone from the same source as was used during the most recent performance test and maintain records of the source and type of limestone used. | |
| 12. Each affected kiln that is equipped with a DIFF or DLS/FF | a. Initiate corrective action within 1 hour of a bag leak detection system alarm and complete corrective actions in accordance with the OM&M plan; and |
| b. Verify at least once each 8-hour shift that lime is free-flowing by means of a visual check, checking the output of a load cell, carrier gas/lime flow indicator, or carrier gas pressure drop measurement system; and | |
| c. Record the lime feeder setting daily to verify that the feeder setting is at or above the level established during the most recent performance test. | |
| 13. Each affected kiln that is equipped with a wet scrubber | a. Maintain the 3-hour block average pressure drop across the scrubber, liquid pH, and liquid flow rate at or above the minimum levels established during the most recent performance test; and |
| b. If chemicals are added to the scrubber liquid, maintain the 3-hour block average chemical feed rate at or above the minimum chemical feed rate established during the most recent performance test. |
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