NR 664.1031(39)(39)“Vented” means discharged through an opening, typically an open-ended pipe or stack, allowing the passage of a stream of liquids, gases or fumes into the atmosphere. The passage of liquids, gases or fumes is caused by mechanical means such as compressors or vacuum-producing systems or by process-related means such as evaporation produced by heating and not caused by tank loading and unloading (working losses) or by natural means such as diurnal temperature changes.
NR 664.1031 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.
NR 664.1032NR 664.1032Standards: process vents.
NR 664.1032(1)(1)The owner or operator of a facility with process vents associated with distillation, fractionation, thin-film evaporation, solvent extraction or air or steam stripping operations managing hazardous wastes with organic concentrations of at least 10 ppmw shall do any of the following:
NR 664.1032(1)(a)(a) Reduce total organic emissions from all affected process vents at the facility below 1.4 kg/h (3 lb/h) and 2.8 Mg/yr (3.1 tons/yr).
NR 664.1032(1)(b)(b) Reduce, by use of a control device, total organic emissions from all affected process vents at the facility by 95 weight percent.
NR 664.1032(2)(2)If the owner or operator installs a closed-vent system and control device to comply with sub. (1), the closed-vent system and control device shall meet s. NR 664.1033.
NR 664.1032(3)(3)Determinations of vent emissions and emission reductions or total organic compound concentrations achieved by add-on control devices may be based on engineering calculations or performance tests. If performance tests are used to determine vent emissions, emission reductions or total organic compound concentrations achieved by add-on control devices, the performance tests shall conform with s. NR 664.1034 (3).
NR 664.1032(4)(4)When an owner or operator and the department do not agree on determinations of vent emissions, emission reductions or total organic compound concentrations achieved by add-on control devices based on engineering calculations, use the procedures in s. NR 664.1034 (3) to resolve the disagreement.
NR 664.1032 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.
NR 664.1033NR 664.1033Standards: closed-vent systems and control devices.
NR 664.1033(1)(1)
NR 664.1033(1)(a)(a) Owners or operators of closed-vent systems and control devices used to comply with provisions of this chapter shall comply with this section.
NR 664.1033(1)(b)(b)
NR 664.1033(1)(b)1.1. The owner or operator of an existing facility who cannot install a closed-vent system and control device to comply with this subchapter on the effective date that the facility becomes subject to this subchapter shall prepare an implementation schedule that includes dates by which the closed-vent system and control device will be installed and in operation. The controls shall be installed as soon as possible, but the implementation schedule may allow up to 30 months after the effective date that the facility becomes subject to this subchapter for installation and startup.
NR 664.1033(1)(b)2.2. Any unit that begins operation after June 1, 1995, and is subject to this subchapter when operation begins, shall comply with the rules immediately (i.e., shall have control devices installed and operating on startup of the affected unit; the 30-month implementation schedule does not apply).
NR 664.1033(1)(b)3.3. The owner or operator of any facility in existence on the effective date of a department rule amendment that renders the facility subject to this subchapter shall comply with this subchapter as soon as practicable but no later than 30 months after the amendment’s effective date. When control equipment required by this subchapter cannot be installed and begin operation by the effective date of the amendment, the facility owner or operator shall prepare an implementation schedule that includes specific calendar dates for award of contracts or issuance of purchase orders for the control equipment, initiation of on-site installation of the control equipment, completion of the control equipment installation and performance of any testing to demonstrate that the installed equipment meets the applicable standards of this subchapter. The owner or operator shall enter the implementation schedule in the operating record or in a permanent, readily available file located at the facility.
NR 664.1033(1)(b)4.4. Owners and operators of facilities and units that become newly subject to the requirements of this subchapter after August 1, 2006, due to an action other than those described in subd. 3. shall comply with all applicable requirements immediately (i.e., shall have control devices installed and operating on the date the facility or unit becomes subject to this subchapter; the 30-month implementation schedule does not apply).
NR 664.1033(2)(2)Design and operate a control device involving vapor recovery (e.g., a condenser or adsorber) to recover the organic vapors vented to it with an efficiency of 95 weight percent or greater unless the total organic emission limits of s. NR 664.1032 (1) (a) for all affected process vents can be attained at an efficiency less than 95 weight percent.
NR 664.1033(3)(3)Design and operate an enclosed combustion device (e.g., a vapor incinerator, boiler or process heater) to reduce the organic emissions vented to it by 95 weight percent or greater; to achieve a total organic compound concentration of 20 ppmv, expressed as the sum of the actual compounds, not carbon equivalents, on a dry basis corrected to 3 percent oxygen; or to provide a minimum residence time of 0.50 seconds at a minimum temperature of 760°C. If a boiler or process heater is used as the control device, introduce the vent stream into the flame zone of the boiler or process heater.
NR 664.1033(4)(4)
NR 664.1033(4)(a)(a) A flare shall be designed for and operated with no visible emissions as determined by the methods specified in sub. (5) (a), except for periods not to exceed a total of 5 minutes during any 2 consecutive hours.
NR 664.1033(4)(b)(b) Operate a flare with a flame present at all times, as determined by the methods specified in sub. (6) (b) 3.
NR 664.1033(4)(c)(c) Use a flare only if the net heating value of the gas being combusted is 11.2 MJ/scm (300 Btu/scf) or greater if the flare is steam-assisted or air-assisted, or if the net heating value of the gas being combusted is 7.45 MJ/scm (200 Btu/scf) or greater if the flare is nonassisted. Determine the net heating value of the gas being combusted by the methods specified in sub. (5) (b).
NR 664.1033(4)(d)(d)
NR 664.1033(4)(d)1.1. Design a steam-assisted or nonassisted flare for and operate it with an exit velocity, determined by the methods specified in sub. (5) (c), less than 18.3 m/s (60 ft/s), except as provided in subds. 2. and 3.
NR 664.1033(4)(d)2.2. A steam-assisted or nonassisted flare designed for and operated with an exit velocity, determined by the methods specified in sub. (5) (c), equal to or greater than 18.3 m/s (60 ft/s) but less than 122 m/s (400 ft/s) is allowed if the net heating value of the gas being combusted greater than 37.3 MJ/scm (1,000 Btu/scf).
NR 664.1033(4)(d)3.3. A steam-assisted or nonassisted flare designed for and operated with an exit velocity, determined by the methods specified in sub. (5) (c), less than the velocity, Vmax, determined by the method specified in sub. (5) (d) and less than 122 m/s (400 ft/s) is allowed.
NR 664.1033(4)(e)(e) Design and operate an air-assisted flare with an exit velocity less than the velocity, Vmax, determined by the method specified in sub. (5) (e).