Gas network / What is flowing in our pipelines?

What is flowing in our pipelines?

There are natural gas and biogas flowing in our pipelines.

The natural gas is sourced from different place worldwide and comes through the Balticconnector pipeline and the LNG terminals in Inkoo and Hamina. Once the GIPL and Baltic Pipe pipeline connections are completed, gas can also be imported from Western European gas sources such as Norway.

The import of Russian natural gas to Finland through the Imatra border point ended on May 21, 2022.

Natural gas consists primarily of methane (CH4) – a gas that is lighter than air. Natural gas is odourless and colourless gas, which is why it is odourised to detect any leaks. 

The products of natural gas combustion are water and carbon dioxide. Biogas is a mixture of gases that is usually composed of 40–70 % methane. Biogas is formed continuously in the natural environment, at wastewater treatment plants and at landfill sites. Biogas is also produced using various types of technology. To enable its injection into the gas network, biogas needs to be upgraded by raising its methane content. We have determined the criteria for gas quality to ensure that customers receive high-quality gas at their usage sites and that equipment at gas usage sites is able to utilise gas efficiently in processes, in energy production or as a raw material.

The gas quality properties are indicative.

Component Biomethane Natural gas
Methane 95-98 % 85-98 %
Carbon dioxine 0-3 % < 2,5 %
Nitrogen 0-2 % < 1 %
Oxygen 0-0,5 % < 0,02 %
Hydrogen sulphide Residuals -
Siloxanes Residuals -
Water vapour Residuals -
Halogenated hydrocarbons Residuals -
Heavier hydrocarbons - < 15 %
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