Table 5 to Subpart FFFF of Part 63—Emission Limits and Work Practice Standards for Transfer Racks
As required in § 63.2475, you must meet each emission limit and work practice standard in the following table that applies to your transfer racks:
For each . . .
You must . . .
1. Group 1 transfer rack
a. Reduce emissions of total organic HAP by ≥98 percent by weight or to an outlet concentration ≤20 ppmv as organic HAP or TOC by venting emissions through a closed-vent system to any combination of control devices (except a flare); or
b. Reduce emissions of total organic HAP by venting emissions through a closed-vent system to a flare; or
c. Reduce emissions of total organic HAP by venting emissions to a fuel gas system or process in accordance with § 63.982(d) and the requirements referenced therein; or
d. Use a vapor balancing system designed and operated to collect organic HAP vapors displaced from tank trucks and railcars during loading and route the collected HAP vapors to the storage tank from which the liquid being loaded originated or to another storage tank connected by a common header.
2. Halogenated Group 1 transfer rack vent stream for which you use a combustion device to control organic HAP emissions
a. Use a halogen reduction device after the combustion device to reduce emissions of hydrogen halide and halogen HAP by ≥99 percent by weight, to ≤0.45 kg/hr, or to ≤20 ppmv; orb. Use a halogen reduction device before the combustion device to reduce the halogen atom mass emission rate to ≤0.45 kg/hr or to a concentration ≤20 ppmv.
[68 FR 63888, Nov. 10, 2003, as amended at 71 FR 40341, July 14, 2006]
Title 40 published on 2012-07-01
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