NR 440.25(4)(b)1. 1. Method 5 shall be used to determine the particulate matter concentration. The sampling time and sample volume for each run shall be at least 60 minutes and 0.90 dscm (31.8 dscf).

NR 440.25(4)(b)2. 2. Method 9 and the procedures in s. NR 440.11 shall be used to determine opacity.

NR 440.25 History History: Cr. Register, January, 1984, No. 337, eff. 2-1-84; am. (1) (a), (2) (intro.) and (a), (3) (a) 1., Register, September, 1990, No. 417, eff. 10-1-90; r. and recr. (4), Register, July, 1993, No. 451, eff. 8-1-93.

NR 440.26 NR 440.26 Petroleum refineries.

NR 440.26(1) (1) Applicability, designation of affected facility, and reconstruction.

NR 440.26(1)(a) (a) The provisions of this section are applicable to the following affected facilities in petroleum refineries: fluid catalytic cracking unit catalyst regenerators, fuel gas combustion devices, and all Claus sulfur recovery plants except Claus plants of 20 long tons per day (LTD) or less. The Claus sulfur recovery plant need not be physically located within the boundaries of a petroleum refinery to be an affected facility, provided it processes gases produced within a petroleum refinery.

NR 440.26(1)(b) (b) Any fluid catalytic cracking unit catalyst regenerator or fuel gas combustion device under par. (a) which commences construction or modification after June 11, 1973 or any Claus sulfur recovery plant under par. (a) which commences construction or modification after October 4, 1976, is subject to the requirements of this section except as provided under pars. (c) and (d).

NR 440.26(1)(c) (c) Any fluid catalytic cracking unit catalyst regenerator under par. (b) which commences construction or modification on or before January 17, 1984, is exempted from sub. (5) (b).

NR 440.26(1)(d) (d) Any fluid catalytic cracking unit in which a contact material reacts with petroleum derivatives to improve feedstock quality and in which the contact material is regenerated by burning off coke, other deposits, or both and that commences construction or modification on or before January 17, 1984, is exempt from this section.

NR 440.26(1)(e) (e) For purposes of this section, under s. NR 440.15, the “fixed capital cost of the new components” includes the fixed capital cost of all depreciable components which are or will be replaced pursuant to all continuous programs of component replacement which are commenced within any 2-year period following January 17, 1984. For purposes of this paragraph, “commenced” means that an owner or operator has undertaken a continuous program of component replacement or that an owner or operator has entered into a contractual obligation to undertake and complete, within a reasonable time, a continuous program of component replacement.

NR 440.26(2) (2) Definitions. As used in this section, terms not defined in this subsection have the meanings given in s. NR 440.02.

NR 440.26(2)(a) (a) “Claus sulfur recovery plant” means a process unit which recovers sulfur from hydrogen sulfide by a vapor-phase catalytic reaction of sulfur dioxide and hydrogen sulfide.

NR 440.26(2)(b) (b) “Coke burn-off” means the coke removed from the surface of the fluid catalytic cracking unit catalyst by combustion in the catalyst regenerator. The rate of coke burn-off is calculated by the formula specified in sub. (7).

NR 440.26(2)(c) (c) “Contact material” means any substance formulated to remove metals, sulfur, nitrogen or any other contaminant from petroleum derivatives.

NR 440.26(2)(d) (d) “Fluid catalytic cracking unit” means a refinery process unit in which petroleum derivatives are continuously charged; hydrocarbon molecules in the presence of a catalyst suspended in a fluidized bed are fractured into smaller molecules or react with a contact material suspended in a fluidized bed to improve feedstock quality for additional processing; and the catalyst or contact material is continuously regenerated by burning off coke and other deposits. The unit includes the riser, reactor, regenerator, air blowers, spent catalyst or contact material recovery equipment, and regenerator equipment for controlling air pollutant emissions and for heat recovery.

NR 440.26(2)(e) (e) “Fluid catalytic cracking unit catalyst regenerator” means one or more regenerators (multiple regenerators) which comprise that portion of the fluid catalytic cracking unit in which coke burn-off and catalyst or contact material regeneration occurs, and includes the regenerator combustion air blower or blowers.

NR 440.26(2)(f) (f) “Fresh feed” means any petroleum derivative feedstock stream charged directly into the riser or reactor of a fluid catalytic cracking unit except for petroleum derivatives recycled within the fluid catalytic cracking unit, fractionator or gas recovery unit.

NR 440.26(2)(g) (g) “Fuel gas” means any gas which is generated at a petroleum refinery and which is combusted. Fuel gas also includes natural gas when the natural gas is combined and combusted in any proportion with a gas generated at a refinery. Fuel gas does not include gases generated by catalytic cracking unit catalyst regenerators and fluid coking burners.

NR 440.26(2)(h) (h) “Fuel gas combustion device” means any equipment, such as process heaters, boilers and flares used to combust fuel gas, except facilities in which gases are combusted to produce sulfur or sulfuric acid.

NR 440.26(2)(i) (i) “Oxidation control system” means an emission control system which reduces emissions from sulfur recovery plants by converting these emissions to sulfur dioxide.

NR 440.26(2)(j) (j) “Petroleum” means the crude oil removed from the earth and the oils derived from tar sands, shale and coal.

NR 440.26(2)(k) (k) “Petroleum refinery” means any facility engaged in producing gasoline, kerosene, distillate fuel oils, residual fuel oils, lubricants or other products through distillation of petroleum or through redistillation, cracking or reforming of unfinished petroleum derivatives.

NR 440.26(2)(L) (L) “Process gas” means any gas generated by a petroleum refinery process unit, except fuel gas and process upset gas as defined in this subsection.

NR 440.26(2)(m) (m) “Process upset gas” means any gas generated by a petroleum refinery process unit as a result of startup, shutdown, upset or malfunction.

NR 440.26(2)(n) (n) “Reduced sulfur compounds” means hydrogen sulfide (H2S), carbonyl sulfide (COS) and carbon disulfide (CS2).

NR 440.26(2)(o) (o) “Reduction control system” means an emission control system which reduces emissions from sulfur recovery plants by converting these emissions to hydrogen sulfide.

NR 440.26(2)(p) (p) “Refinery process unit” means any segment of the petroleum refinery in which a specific processing operation is conducted.

NR 440.26(2)(q) (q) “Valid day” means a 24-period in which at least 18 valid hours of data are obtained. A “valid hour” is one in which at least 2 valid data points are obtained.

NR 440.26(3) (3) Standard for particulate matter. Each owner or operator of any fluid catalytic cracking unit catalyst regenerator that is subject to the requirements of this section shall comply with the emission limitations set forth in this subsection on and after the date on which the initial performance test, required by s. NR 440.08, is completed, but not later than 60 days after achieving the maximum production rate at which the fluid catalytic cracking unit catalyst regenerator will be operated, or 180 days after initial startup, whichever comes first.