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The Industrial Pollution Control (Prescribed Processes and Substances) Regulations (Northern Ireland) 1998

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Section 1.3Combustion Processes

Part A
(a)

Burning any fuel in a combustion appliance with a net rated thermal input of 50 megawatts or more.

For the purposes of this paragraph, where—

(i)two or more boilers or furnaces with an aggregate net rated thermal input of 50 megawatts or more (disregarding any boiler or furnace with a net rated thermal input of less than 3 megawatts); or

(ii)two or more gas turbines or compression ignition engines with an aggregate net rated thermal input of 50 megawatts or more (disregarding any such turbine or engine with a net rated thermal input of less than 3 megawatts),

are operated by the same person at the same location those boilers or furnaces, or, as the case may be, those turbines or engines, shall be treated as a single combustion appliance with a net rated thermal input of 50 megawatts or more.

(b)Burning any of the following in an appliance with a net rated thermal input of 3 megawatts or more otherwise than as a process which is related to a Part B or Part C process—

(i)waste oil;

(ii)recovered oil;

(iii)any fuel manufactured from, or comprising, any other waste.

Nothing in this Part of this Section applies to the burning of any fuel in a boiler, furnace or other appliance with a net rated thermal input of less than 3 megawatts.

Part BNil
Part C

The following processes unless carried on in relation to and as part of any Part A or Part B process—

(a)burning any fuel in a boiler or furnace with a net rated thermal input of not less than 20 megawatts, but less than 50 megawatts;

(b)burning any fuel in a gas turbine or compression ignition engine with a net rated thermal input of not less than 20 megawatts, but less than 50 megawatts;

(c)burning as fuel, in an appliance with a net rated thermal input of less than 3 megawatts, waste oil or recovered oil;

(d)burning in an appliance with a net rated thermal input of less than 3 megawatts solid fuel which has been manufactured from waste by a process involving the application of heat;

(e)burning, in any appliance, fuel manufactured from, or including, waste (other than waste oil or recovered oil or such fuel as is mentioned in paragraph (d)) if the appliance has a net rated thermal input of less than 3 megawatts but at least 0.4 megawatts or is used together with (whether or not it is operated simultaneously with) other appliances which each have a net rated thermal input of less than 3 megawatts and the aggregate net rated thermal input of all the appliances is at least 0.4 megawatts.

In paragraph (b) of Part A and paragraph (e) of Part C, “fuel” does not include gas produced by biological degradation of waste; and for the purposes of this Section—

  • “net rated thermal input” is the rate at which fuel can be burned at the maximum continuous rating of the appliance multiplied by the net calorific value of the fuel and expressed as megawatts thermal; and

  • “waste oil” means any mineral based lubricating or industrial oil which has become unfit for the use for which it was intended and, in particular, used combustion engine oil, gearbox oil, mineral lubricating oil, oil for turbines, hydraulic oil; and

  • “recovered oil” means waste oil which has been processed before being used.

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