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Where the emission limit values above cannot be met due to the characteristics of the fuel, a rate of desulphurisation of at least 60 % shall be achieved in the case of plants with a rated thermal input of less than or equal to 100 MWth, 75 % for plants greater than 100 MWth and less than or equal to 300 MWth and 90 % for plants greater than 300 MWth. For plants greater than 500 MWth, a desulphurisation rate of at least 94 % shall apply or of at least 92 % where a contract for the fitting of flue gas desulphurisation or lime injection equipment has been entered into, and work on its installation has commenced, before 1 January 2001.U.K.
a Except in the case of the ‘Outermost Regions’ where 850 to 200 mg/Nm3 (linear decrease) shall apply. | |||
Type of fuel | 50 to 100 MWth | 100 to 300 MWth | > 300 MWth |
---|---|---|---|
Biomass | 200 | 200 | 200 |
General case | 850 | 200a | 200 |
Where the emission limit values above cannot be met due to the characteristics of the fuel, installations shall achieve 300 mg/Nm3 SO2, or a rate of desulphurisation of at least 92 % shall be achieved in the case of plants with a rated thermal input of less than or equal to 300 MWth and in the case of plants with a rated thermal input greater than 300 MWth a rate of desulphurisation of at least 95 % together with a maximum permissible emission limit value of 400 mg/Nm3 shall apply.U.K.