40 CFR Table 1 to Subpart HHHHH of Part 63: Table 1 to Subpart HHHHH of Part 63—Emission Limits and Work Practice Standards for Process Vessels

Table 1 to Subpart HHHHH of Part 63—Emission Limits and Work Practice Standards for Process Vessels

[As required in § 63.8005, you must meet each emission limit and work practice standard in the following table that applies to your process vessels.]

For each . . . You must . . . And you must . . .

1. Portable process vessel at an existing source a. Equip the vessel with a cover or lid that must be in place at all times when the vessel contains a HAP, except for material additions and sampling Nonapplicable.

2. Stationary process vessel at an existing source a. Equip the vessel with a cover or lid that must be in place at all times when the vessel contains a HAP, except for material additions and sampling; or b. Equip the vessel with a tightly fitting vented cover or lid that must be closed at all times when the vessel contains HAP, except for material additions and sampling c. As specified in § 63.8005(i), on or before February 22, 2024, during the addition of dry material, route material containing metal HAP to a capture and control system that is maintained and operated according to the provisions of § 63.8005 i. Considering both capture and any combination of control (except a flare), reduce emissions of organic HAP with a vapor existing pressure ≥0.6 kPa by ≥75 percent by weight, and reduce emissions of organic HAP with a vapor pressure <0.6 kPa by ≥60 percent by weight. i. Reduce emissions of organic HAP with a vapor pressure ≥0.6 kPa by ≥75 percent by weight, and reduce emissions of organic HAP with a vapor pressure <0.6 kPa by ≥60 percent by weight, by venting emissions through a closed-vent system to any combination of control devices (except a flare); or

ii. Reduce emissions of total organic HAP by venting emissions from a non-halogenated vent stream through a closed-vent system to a flare; or

iii. Reduce emissions of total organic HAP by venting emissions through a closed-vent system to a condenser that reduces the outlet gas temperature to:

<10 °C if the process vessel contains HAP with a partial pressure <0.6 kPa, or

<2 °C if the process vessel contains HAP with a partial pressure ≥0.6 kPa and <17.2 kPa, or

<−5 °C if the process vessel contains HAP with a partial pressure ≥17.2 kPa.

i. Reduce emissions of material containing metal HAP to 0.014 gr/dscf or less.

3. Portable and stationary process vessel at a new source a. Equip the vessel with a tightly fitting vented cover or lid that must be closed at all times when the vessel contains HAP, except for material additions and sampling b. As specified in § 63.8005(i), upon startup or February 22, 2023, whichever is later, during the addition of dry material, route material containing metal HAP to a capture and control system that is maintained and operated according to the provisions of § 63.8005 i. Reduce emissions of total organic HAP by ≥95 percent by weight by venting emissions through a closed-vent system to any combination of control devices (except a flare); or ii. Reduce emissions of total organic HAP by venting emissions from a non-halogenated vent stream through a closed-vent system to a flare; or iii. Reduce emissions of total organic HAP by venting emissions through a closed-vent system to a condenser that reduces the outlet gas temperature to:

<−4 °C if the process vessel contains HAP with a partial pressure <0.7 kPa, or

<−20 °C if the process vessel contains HAP with a partial pressure ≥0.7 kPa and <17.2 kPa, or

<−30 °C if the process vessel contains HAP with a partial pressure ≥17.2 kPa.

i. Reduce emissions of material containing metal HAP to 0.0079 gr/dscf or less.

4. Halogenated vent stream from a process vessel subject to the requirements of item 2 or 3 of this table for which you use a combustion control device to control organic HAP emissions a. Use a halogen reduction device after the combustion control device; or b. Use a halogen reduction device before the combustion control device i. Reduce overall emissions of hydrogen halide and halogen HAP by ≥95 percent; or ii. Reduce overall emissions of hydrogen halide and halogen HAP to ≤0.45 kilogram per hour (kg/hr). Reduce the halogen atom mass emission rate to ≤0.45 kg/hr.