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In 2017, programmes for upgrading turbines at the stations were continued. In particular, turbines were put into service at the Sabbioncello  (TC2) and Bordolano (TC1 and TC2) storage plants

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The indicator that takes into account the NOx emissions on the energy used rose only by 6.7% even though gas transportation strongly increased.

 

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NOx emissions into the atmosphere are determined based on direct measurements or, if these are not available, on emission factors present in the relevant literature (the EMEP/EEA Air Pollutant Emission Inventory Guidebook of the European Environment Agency)

Nitrogen oxide emissions (NOx) derive from the gas turbines in the compressor stations (compression and storage) and the vaporisers at the liquefied natural gas regasification plant. In 2017, total nitrogen oxide emissions were around 532 tonnes (+22.5% compared with 2016), while the indicator that takes into account the emissions for energy used rose only by 6.7% thanks to the ever-increasing use of DLE turbines. The use of natural gas as its main energy source allows Snam to minimise emissions of sulphur oxides and particulate matter.

In order to reduce nitrogen oxide emissions deriving from the combustion of natural gas in the gas turbines used in compression stations, in recent years a number of existing turbines were modified and new units installed with dry low emission combustion systems, while at the regasification plant, submerged flame vaporisers were installed.

In 2017, the DLE turbocompressors were put into service at the Sabbioncello (TC2) and Bordolano (TC1 and TC2) storage plants.

Total NOX Emission (t)

 

NOX emission / energy used

 

NOX atmospheric emissions are determined based on direct measurements or, where these are not available, on emission factors present in the relevant literature (the EMEP/EEA “Air Pollutant Emission Inventory Guidebook”).


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Explore our 2017 Sustainability Report

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Read our areas for improvement to 2021

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updated
18 April 2018 - 09:55 CEST