©SARP Industrie

CO2 is recycled in the port of Le Havre

Posted on 27 September 2016.

In the chimneys of the Sedibex plant, a pilot unit captures the CO2 from the flue gases and the recycles it for use by neighboring industries.

In the port of Le Havre, the Sedibex plant treats waste from the 450 industries located nearby. Operated by SARP Industries, a Veolia subsidiary, Sedibex soon stood out in the field of circular economy.

Every year its waste treatment activity generates 300,000 tons of steam and 9.5 MkWh of electricity - energy the plant distributes to the various industries on the port. In 2009, Sedibex decided to take a new step in industrial ecology : capturing and recycling the CO2 content in its fumes.

Recycling CO2

To meet this challenge, Veolia Research & Innovation and the INSA Rouen school of engineering joined forces in the "Siroco" project. Together they developed a capture process using a molecule in the amine group.

This technology was first tested - successfully - in the laboratory. Which made it possible in 2011 to install a pilot unit in Sedibex’s chimneys. The feasibility of the method was studied for two years. As the fumes contain various constituents (nitrogen, water vapor, oxygen, etc.), the challenge was in particular to successfully capture just the CO2.

Creating a virtuous local loop

With good results, a pilot plant was established in 2013. The ultimate aim is to redistribute the CO2 captured to two industries in the region, which will use it as a raw material to produce additives for industrial lubricants (oils, greases, etc.).

Sedibex’s CO2 will enable them to reduce their costs and their environmental footprint. It will replace the liquid CO2 they currently use, which is highly energy-intensive to produce and has to be transported by truck.

Although this pilot plant is still in its infancy, it nevertheless opens up great opportunities for collaboration. As was stressed in one of the 2C conferences at La REcyclerie, connecting players within a territory to create virtuous local loops is one of the biggest challenges in the circular economy.