Mossmorran

The Mossmorran facilities is the collective name given to the Fife NGL plant operated by Shell and the Fife Ethylene Plant operated by ExxonMobil. The plants process natural gas liquids, with Fife NGL providing feed for fractionation by Fife Ethylene plant. The plant is part of the North Sea Brent oil and gas field system.

Gas is separated from oil on the offshore platforms with the gas then pumped ashore to a terminal at St Fergus which is operated by Shell. At the St Fergus Gas Plant, methane is extracted from the rest of the gas product with the remaining NGL piped 139 miles away to the Mossmorran facilities. The Braefoot Bay terminal also supplies product to the Mossmorran complex. At the Fife NGL fractionation plant, natural gas fluid is separated by distillation (in fractionation columns) into ethane (C2H6), propane (C3H8), butane (C4H10) and pentane (C5H12). The ethane is then piped to an adjacent ethene cracker plant operated by ExxonMobil for further processing and cracking. The propane and butane is chilled, liquefied and stored on site within double integrity tanks, the gasoline is also stored on site within floating roof tanks. These liquids are then transported via pipeline to the marine terminal at Braefoot Bay on the Firth of Forth for loading onto ships for export. Mossmorran also has an adjacent road tanker terminal for road transportation of propane and butane.

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Fife NGL (Shell) - Air Pollutants emitted per tonne in 2016
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Fife Ethylene (ExxonMobil) - Air Pollutants emitted per tonne in 2016
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Fife NGL (Shell) - Air Pollutants emitted per tonne in 2015
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Fife Ethylene (ExxonMobil) - Air Pollutants emitted per tonne in 2015
The data below is provided by the plant operators as part of the voluntary compliance scheme. SEPA do not actively monitor emissions from the plant. Shell conduct the calculations and estimations of emissions levels, the data is then passed onto SEPA who check the calculations and estimations before publishing on their website at: http://apps.sepa.org.uk/SPRIPA/Search/ViewReturn.aspx?returnId=31753.

Pollutant Total Release Accidental Release Measurement Type
Benzene Below Reporting Threshold - Estimated
Carbon Dioxide 193,553,635 Kg 0 Kg Calculated
Carbon Monoxide 388,855 Kg 0 Kg Calculated
Hydrochlorofluorocarbons (HCFCs) Below Reporting Threshold -- Measured
Hydrofluorocarbons (HFCs) Below Reporting Threshold -- Measured
Hydrofluorocarbons (HFCs) Below Reporting Threshold -- Measured
Methane Below Reporting Threshold -- Calculated
Nitrogen oxides, NO and NO2 as NO2 398,871 Kg 0 Kg Calculated
Nitrous oxide 14,180 Kg 0 Kg Calculated
Non-methane volatile organic compounds (NMVOCs) 45,538 Kg 0 Kg Calculated
Particulate matter - PM10 and smaller Below Reporting Threshold -- Estimated
Sulphur oxides, SO2 and SO3 as SO2 Below Reporting Threshold -- Calculated
The data below is provided by the plant operators as part of the voluntary compliance scheme. SEPA do not actively monitor emissions from the plant. Shell conduct the calculations and estimations of emissions levels, the data is then passed onto SEPA who check the calculations and estimations before publishing on their website at: http://apps.sepa.org.uk/SPRIPA/Search/ViewReturn.aspx?returnId=30423.

Pollutant Total Release Accidental Release Measurement Type
Benzene Below Reporting Threshold - Estimated
Carbon Dioxide 150,083,063 Kg 0 Kg Calculated
Carbon Monoxide 152,900 Kg 0 Kg Calculated
Hydrochlorofluorocarbons (HCFCs) Below Reporting Threshold -- Measured
Hydrofluorocarbons (HFCs) Below Reporting Threshold -- Measured
Hydrofluorocarbons (HFCs) Below Reporting Threshold -- Measured
Methane Below Reporting Threshold -- Calculated
Nitrogen oxides, NO and NO2 as NO2 309,970 Kg 0 Kg Calculated
Nitrous oxide 11,010 Kg 0 Kg Calculated
Non-methane volatile organic compounds (NMVOCs) 63,960 Kg 0 Kg Calculated
Particulate matter - PM10 and smaller Below Reporting Threshold -- Estimated
Sulphur oxides, SO2 and SO3 as SO2 Below Reporting Threshold -- Calculated
The data below is provided by the plant operators as part of the voluntary compliance scheme. SEPA do not actively monitor emissions from the plant. ExxonMobil conduct the calculations and estimations of emissions levels, the data is then passed onto SEPA who check the calculations and estimations before publishing on their website at: http://apps.sepa.org.uk/SPRIPA/Search/ViewReturn.aspx?returnId=31793.

Pollutant Total Release Accidental Release Measurement Type
Benzene 23,192 Kg 0 Kg Measured
Butadiene 624 Kg 0 Kg Estimated
Carbon Dioxide 885,580,483 Kg 0 Kg Calculated
Carbon Monoxide 232,525 Kg 0 Kg Calculated
Methane Below Reporting Threshold -- Estimated
Nitrogen oxides, NO and NO2 as NO2 1,565,692 Kg 0 Kg Calculated
Nitrous oxide Below Reporting Threshold -- Calculated
Non-methane volatile organic compounds (NMVOCs) 636,271 Kg 0 Kg Estimated
Particulate matter - total 90,326 Kg -- Calculated
Sulphur oxides, SO2 and SO3 as SO2 Below Reporting Threshold -- Measured
Toluene 4,590 Kg 0 Kg Estimated
The data below is provided by the plant operators as part of the voluntary compliance scheme. SEPA do not actively monitor emissions from the plant. ExxonMobil conduct the calculations and estimations of emissions levels, the data is then passed onto SEPA who check the calculations and estimations before publishing on their website at: http://apps.sepa.org.uk/SPRIPA/Search/ViewReturn.aspx?returnId=30463.

Pollutant Total Release Accidental Release Measurement Type
Benzene 22,943 Kg 0 Kg Measured
Butadiene 624 Kg 0 Kg Estimated
Carbon Dioxide 820,771,000 Kg 0 Kg Calculated
Carbon Monoxide 121,697 Kg 0 Kg Calculated
Methane Below Reporting Threshold -- Estimated
Nitrogen oxides, NO and NO2 as NO2 908,303 Kg 0 Kg Calculated
Nitrous oxide Below Reporting Threshold -- Calculated
Non-methane volatile organic compounds (NMVOCs) 347,295 Kg 0 Kg Estimated
Particulate matter - total Below Reporting Threshold -- Calculated
Sulphur oxides, SO2 and SO3 as SO2 Below Reporting Threshold -- Measured
Toluene 4,427 Kg 0 Kg Estimated