Multi-Sector Air Pollutants Regulations (SOR/2016-151)

Regulations are current to 2019-08-15

PART 1Boilers and Heaters (continued)

Application

Marginal note:Rated capacity at least 10.5 GJ/h

  •  (1) This Part applies in respect of a pre-existing, transitional or modern boiler or heater located in a regulated facility that is used or designed to combust gaseous fossil fuel and that has a rated capacity of at least 10.5 GJ/h.

  • Marginal note:Regulated facilities

    (2) The following are the regulated facilities:

    • (a) oil and gas facilities;

    • (b) oil sands facilities;

    • (c) chemicals facilities;

    • (d) nitrogen-based fertilizer facilities;

    • (e) pulp and paper facilities;

    • (f) base metals facilities;

    • (g) potash facilities;

    • (h) alumina facilities and aluminum facilities;

    • (i) power plants;

    • (j) iron, steel and ilmenite facilities;

    • (k) iron ore pelletizing facilities; and

    • (l) cement manufacturing facilities.

  • Marginal note:Excluded boilers and heaters

    (3) Despite subsections (1) and (2), this Part does not apply in respect of the following types of boiler or heater:

    • (a) a heater that is used to dry, bake or calcinate materials, including a kiln as defined in section 101 and an anode-baking furnace;

    • (b) a heater that is used in any process to chemically transform ore or intermediate products into bulk metallic products;

    • (c) a coke oven battery;

    • (d) a heater or boiler that is designed to combust coke oven gas;

    • (e) a blast furnace stove;

    • (f) a heater or boiler that is designed to combust blast furnace gas;

    • (g) an ethylene cracker;

    • (h) a steam methane reformer;

    • (i) a reheat furnace;

    • (j) a boiler or heater that is used only for activities that are subsequent to the hot rolling of steel into basic shapes at an iron, steel and ilmenite facility;

    • (k) a chemical recovery boiler;

    • (l) a biomass boiler;

    • (m) a heat-recovery steam generator;

    • (n) a boiler that combusts exhaust gases that arise from the partial combustion of coke in a vessel integrated with a fluid coking unit; and

    • (o) a boiler or heater that is used only in the start-up of a facility or process and operated for fewer than 500 hours in each previous year of its operation.

Main Requirements

Marginal note:Modern boilers

  •  (1) Subject to section 10, the NOx emission intensity of a modern boiler that, for a given hour, has at least 50% of the input energy in its combustion chamber resulting from the introduction of gaseous fossil fuel set out in column 1 of the table to this subsection and that has a thermal efficiency set out in column 2 must not, for that hour, exceed the limit set out in column 3.

    TABLE

    Modern Boilers — NOX Emission Intensity Limits

    Column 1Column 2Column 3
    ItemGaseous Fossil FuelThermal EfficiencyNOx Emission Intensity Limit (g/GJ)
    1Natural gas< 80%16
    2Natural gas≥ 80% and ≤ 90%16 + (E – 80)/5, where E is the thermal efficiency of the boiler
    3Natural gas> 90%18
    4Alternative gas< 80%20.8
    5Alternative gas≥ 80% and ≤ 90%20.8 + (E – 80)/4.54, where E is the thermal efficiency of the boiler
    6Alternative gas> 90%23
  • Marginal note:Thermal efficiency

    (2) For the purpose of subsection (1), the thermal efficiency of a modern boiler for the given hour

    • (a) if there has been a determination made in accordance with section 18, is the result of the most recent such determination; and

    • (b) in any other case, is deemed to be less than 80%.

Marginal note:Modern heaters

  •  (1) Subject to section 10, the NOx emission intensity of a modern heater — that, for a given hour, has at least 50% of the input energy in its combustion chamber resulting from the introduction of gaseous fossil fuel set out in column 1 of the table to this subsection and that has a difference between the temperature of its preheated air and the ambient air set out in column 2 must not, for that hour, exceed the limit set out in column 3.

    TABLE

    Modern Heaters — NOX Emission Intensity Limits

    Column 1Column 2Column 3
    ItemGaseous Fossil FuelDifference between Temperature of Preheated Air and Ambient Air (°C)NOx Emission Intensity Limit (g/GJ)
    1Natural gas016
    2Natural gas> 0 and ≤ 15016 × [1 + (2 x 10-4T) + (7 x 10-6T2)], where T is the difference, expressed in °C, between the temperature of its preheated air and the ambient air
    3Natural gas> 15019
    4Alternative gas020.8
    5Alternative gas> 0 and ≤ 15520.8 × [1 + (2 x 10-4T) + (7 x 10-6T2)], where T is the difference, expressed in °C, between the temperature of its preheated air and the ambient air
    6Alternative gas> 15525
  • Marginal note:Preheated air

    (2) For the purpose of subsection (1), the difference between the temperature of a modern heater’s preheated air and the ambient air, expressed in °C, for the given hour

    • (a) if there has been a determination of that difference made in accordance with section 24 within the previous 12 months, is the result of the most recent of such determination; and

    • (b) in any other case, is deemed to be 0°C.

 
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