National Power's Orimulsion plans put BPEO assessment to the test

National Power has revived plans to burn the controversial fuel Orimulsion at its Pembroke power station - but has accepted that to do so it must fit some form of sulphur abatement equipment. In perhaps the first practical application of HM Inspectorate of Pollution's proposed environmental assessment methodology, the company claims that its preferred option of flue gas desulphurisation (FGD) with the wet limestone/gypsum process represents the "best practicable environmental option" (BPEO). But it has dismissed the option of retrofitting the station with clean combustion technology based on gasification - a line which may set it on a collision course with HMIP.

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