Technical isolation in a liquefaction and gas upgrading process

Norisol has had a project at Wärtsilä working with liquefaction and gas upgrading - technologies used in biogas handling and processing.

In short, here's the process of these technologies:

  • Biogas is fed from a reactor tank to a gas upgrading system where CO2 and other substances are filtered out.
  • The purified gas is passed through insulated pipes to maintain the temperature.
  • The gas ends up in an LNG cooling tower where it is cooled down to -162 degrees to liquefy the gas
  • From the cooling tower, the liquefied gas is piped to an LNG container through Armaflex insulated pipes, as it is important that the cool temperature is maintained.
  • The gas is now ready for transportation either to a natural gas plant or export abroad.

Norisol provides both thermal insulation and cold insulation for the transport pipes.

The reason for the gas to be liquid is to make it more transportable, as it takes up much less space than in gaseous form, and to make it compatible with the natural gas network.

4 technical insulators from Norisol have spent 3 months on the project at Wärtsilä, and soon we will start a similar project in Sweden - also in collaboration with Wärtsilä.

Wärtsilä chooses us again and again because we are well versed in the technical aspects of liquefaction and gas upgrading, which means we carry out well thought-out work and don't need instruction from time to time. We are also well versed in the very strict Atex safety regulations that apply to gas handling.

Last but not least, the use of biogas instead of fossil gas contributes to the green transition, which we are very proud to support.

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