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EcoStock Adopted by ArcelorMittal: Demonstrating the Profitability of High-Temperature Thermal Storage

Implementation Date

April 13, 2022

By

ArcelorMittal

City

Dunkerque

story image

Description

Eco-Tech Ceram, a Toulouse-based industrial thermal engineering startup, is installing a thermal storage unit at the ArcelorMittal, the largest steel production site in Europe. This high-temperature thermal storage demonstrator captures, stores and recovers waste heat. To demonstrate the cost-effectiveness of its solution, Eco-Tech Ceram has offered to install the prototype at the industrial giant ArcelorMittal's steel plant in Dunkerque. Once the pilot tests are completed, the containerized storage prototype will be moved to other industrial sites in the Hauts-de-France region to enable upstream testing of future decarbonization projects.

Impact & Result

This prototype demonstrated the profitability of our solution for recovering waste heat to dry agglomeration sludge. As a result, ArcelorMittal does not need to use fossil fuels to dry its sludge, and no longer has to pay the additional cost of transporting wet sludge. With an energy efficiency rate of around 40, the Eco-Stock is capable of converting waste heat into low-carbon energy.

Solution Spotlight

A major amount of the energy consumed in the industry is wasted as lost heat, which represents millions of tons of CO2 uselessly produced. Eco-Tech Ceram’s solution is to recover the heat contained in industrial fumes and store it in refractory ceramics made from industrial co-products. This accumulated heat can either be used as a heating source – hot air at constant temperature level is provided (up to 1000°C) – or be converted into electricity.

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