NR 440.675(1)(a) (a) The provisions of this section apply to each affected facility designated in par. (b) that produces any of the chemicals listed in sub. (8) as a product, co-product, by-product or intermediate, except as provided in par. (c).

NR 440.675(1)(b) (b) The affected facility is any of the following for which construction, modification or reconstruction commenced after October 21, 1983:

NR 440.675(1)(b)1. 1. Each air oxidation reactor not discharging its vent stream into a recovery system.

NR 440.675(1)(b)2. 2. Each combination of an air oxidation reactor and the recovery system into which its vent stream is discharged.

NR 440.675(1)(b)3. 3. Each combination of 2 or more air oxidation reactors and the common recovery system into which their vent streams are discharged.

NR 440.675(1)(c) (c) Each affected facility that has a total resource effectiveness (TRE) index value greater than 4.0 is exempt from all provisions of this section except for subs. (3), (5) (f), (6) (h) and (L).

NR 440.675 Note Note: The intent of these standards is to minimize the emissions of VOC through the application of best demonstrated technology (BDT). The numerical emission limits in these standards are expressed in terms of total organic compounds (TOC), measured as TOC minus methane and ethane. This emission limit reflects the performance of BDT.

NR 440.675(1)(d) (d)

NR 440.675(1)(d)1. 1. Owners or operators of process vents that are subject to this section may choose to comply with the provisions of 40 CFR part 65, subpart D, as in effect on December 14, 2000, to satisfy the requirements of subs. (3) to (6). The provisions of 40 CFR part 65, subpart D, as in effect on December 14, 2000, also satisfy the criteria of par. (c). Other provisions applying to an owner or operator who chooses to comply with 40 CFR part 65, subpart D, as in effect on December 14, 2000, are provided in 40 CFR 65.1.

NR 440.675(1)(d)2. 2. Owners or operators who choose to comply with 40 CFR part 65, subpart D, as in effect on December 14, 2000, shall also comply with ss. NR 440.01, 440.02, 440.05, 440.06, 440.07 (1) (a) and (d), 440.14 and 440.15 for those process vents. All sections or subsections from ss. NR 440.01 to 440.19 not specified in this subdivision do not apply to owners or operators of process vents complying with 40 CFR part 65, subpart D, as in effect on December 14, 2000, except that provisions required to be met prior to implementing 40 CFR part 65 still apply. Owners or operators who choose to comply with 40 CFR part 65, subpart D, as in effect on December 14, 2000, shall comply with 40 CFR part 65, subpart A.

NR 440.675(1)(d)3. 3. Owners or operators who choose to comply with 40 CFR part 65, subpart D, as in effect on December 14, 2000, at initial startup shall comply with subds. 1. and 2. for each vent stream on and after the date on which the initial performance test is completed, but not later than 60 days after achieving the maximum production rate at which the affected facility will be operated, or 180 days after the initial startup, whichever date comes first.

NR 440.675(1)(d)4. 4. Each owner or operator subject to the provisions of this section that chooses to comply with 40 CFR part 65, subpart D, as in effect on December 14, 2000, at initial startup shall notify the administrator of the specific provisions of 40 CFR 65.63 (a) (1), (2) or (3) with which the owner or operator has elected to comply. Notification shall be submitted with the notification of initial startup required by 40 CFR 65.5 (b).

NR 440.675(2) (2) Definitions. As used in this section, all terms not defined here shall have the meanings given them in s. NR 440.02 and the following terms shall have the specific meanings given them.

NR 440.675(2)(a) (a) “Air oxidation reactor” means any device or process vessel in which one or more organic reactants are combined with air or a combination of air and oxygen, to produce one or more organic compounds. Ammoxidation and oxychlorination reactions are included in this definition.

NR 440.675(2)(b) (b) “Air oxidation reactor recovery train” means an individual recovery system receiving the vent stream from at least one air oxidation reactor, along with all air oxidation reactors feeding vent streams into this system.

NR 440.675(2)(c) (c) “Air oxidation unit process” means a unit process, including ammoxidation and oxychlorination unit process, that uses air or a combination of air and oxygen, as an oxygen source in combination with one or more organic reactants to produce one or more organic compounds.

NR 440.675(2)(d) (d) “Boilers” means any enclosed combustion device that extracts useful energy in the form of steam.

NR 440.675(2)(e) (e) “By compound” means by individual stream components, not carbon equivalents.

NR 440.675(2)(f) (f) “Continuous recorder” means a data recording device recording an instantaneous data value at least once every 15 minutes.

NR 440.675(2)(g) (g) “Flame zone” means the portion of the combustion chamber in a boiler occupied by the flame envelope.

NR 440.675(2)(h) (h) “Flow indicator” means a device which indicates whether gas flow is present in a vent stream.

NR 440.675(2)(i) (i) “Halogenated vent stream” means any vent stream determined to have a total concentration, by volume, of compounds containing halogens of 20 ppmv by compound or greater.

NR 440.675(2)(j) (j) “Incinerator” means any enclosed combustion device that is used for destroying organic compounds and does not extract energy in the form of steam or process heat.

NR 440.675(2)(k) (k) “Process heater” means a device that transfers heat liberated by burning fuel to fluids contained in tubes, including all fluids except water that is heated to produce steam.

NR 440.675(2)(L) (L) “Process unit” means equipment assembled and connected by pipes or ducts to produce, as intermediate or final products, one or more of the chemicals in sub. (8). A process unit can operate independently if supplied with sufficient fuel or raw materials and sufficient product storage facilities.

NR 440.675(2)(m) (m) “Product” means any compound or chemical listed in sub. (8) that is produced for sale as a final product as that chemical or is produced for use in a process that needs that chemical for the production of other chemicals in another facility. By-products, co-products and intermediates are considered to be products.

NR 440.675(2)(n) (n) “Recovery device” means an individual unit of equipment, such as an absorber, condenser and carbon adsorber, capable of and used to recover chemicals for use, reuse or sale.

NR 440.675(2)(o) (o) “Recovery system” means an individual recovery device or series of such devices applied to the same process stream.

NR 440.675(2)(p) (p) “Total organic compounds” or “TOC” means those compounds measured according to the procedures in sub. (5) (b) 4. For the purposes of measuring molar composition as required in sub. (5) (e) 3. a., hourly emissions rate as required in sub. (5) (e) 6. and (f), and TOC concentration as required in sub. (6) (b) 4. and (g) 4., those compounds which the department has determined do not contribute appreciably to the formation of ozone are to be excluded. The compounds to be excluded are identified in s. NR 400.02 (162).