Metallurgy
Waste heat recovery study on hot enclosure. Replacement of preheating enclosures operating with electric hot air blowers by a heat exchanger and an Eco-Stock®.
Our projects
Ceramics, metallurgy, food processing, chemicals, paper, glass... our thermal solutions adapt to all energy-intensive industrial processes, from waste heat recovery to process electrification.Ceramics, metallurgy, food processing, chemicals, paper, glass... our thermal solutions adapt to all energy-intensive industrial processes, from waste heat recovery to process electrification.
Ceramics sector
The ceramics sector is our historical area of expertise. Tunnel kilns, batch kilns, dryers: we have deployed solutions at the sites of global industry leaders.
In operation since 2019
Recovery of waste heat from the firing kiln for reuse in the terracotta product dryer, via an Eco-Stock® 1.3 MWh at 600°C.
Installation of a pre-firing chamber powered exclusively by waste heat, reducing firing cycles and increasing productivity.
Financing: 100% of CAPEX financed through leasing or subsidized by ADEME and the Nouvelle-Aquitaine Region. Zero investment by the site.
"The Eco-Stock® solution improves the energy efficiency of the firing process and also increases our production capacity."
In operation since 2024
Recovery of heat from the site's 6 kilns to redirect it to the dryers as a substitute for burners. The 2 Eco-Stock® units allow time-shifted discharge to match production schedules.
Financing: 100% of CAPEX invested by ETC Invest or subsidized by ADEME, in exchange for heat supply at a fixed price for 10 years.
"Eco-Tech Ceram will enable us to recover waste heat from the six kilns at the Pontigny site and save 480 tonnes of CO₂ per year."
In operation since 2023 — Horizon 2020 Program
Electrification project coupled with an Eco-Stock®: tunnel kiln waste heat recovery, temperature boost via an electric E-Burner, off-peak storage / peak-hour discharge. 100% decarbonized drying thanks to an air/water heat exchanger.
Financing: majority of CAPEX subsidized by the European Union's Horizon 2020 research program.
"The plant will thus reduce its gas consumption by 42% compared to 2021. Without these savings, the site would be threatened by rising gas prices."
Metallurgy sector
Electric arc furnaces, heat treatment furnaces, preheating chambers: ETC works on the thermal processes of European steelmakers and metallurgists.
Use cases by sector
Our solutions apply to any energy-intensive thermal process. Here are the sectors where we actively develop projects — waste heat recovery and process electrification.
Heat recovery from dryer flue gases, firing exhausts, or sterilizer cooling water. Hybridization via E-Burner to produce hot air or an E-Boiler for hot water and steam production.
Waste heat reuse from distillation column condensers or reactor double walls. Recovery for preheating hot water or CIP networks. Heat production hybridization via E-Boiler.
Calcination kilns, dryers, spray dryers. Waste heat recovery on high-temperature processes.
Waste heat recovery from dryer hood steam or boiler flue gases. Reuse of this heat for preheating incoming air via a dam exchanger or feedwater.
High-temperature waste heat source from melting furnaces. Recovery and reuse on annealing lehr via heat exchangers. Hybridization on annealing lehr via e-burner.
Thermal processes on building materials. Waste heat recovery and electrification of kilns and dryers.
Sector analyses currently being expanded — contact us for a study tailored to your process.
All our references
For over 10 years, Eco-Tech Ceram has been designing custom solutions to improve energy efficiency and recover industrial waste heat — from feasibility study to prototype, through to commissioned installation.
Recovery of high-temperature waste heat at the output of a firing kiln, reused in the plant's dryer. — Tegulys
Waste heat optimization from the output of 6 kilns in a unit accounting for over 95% of the site's production. — Wienerberger
Dryer renovation, compressor waste heat recovery, and insulation of slip and glazing tanks. — Villeroy & Boch
Reduction of glazing and biscuit kiln consumption, energy recovered via a high-temperature storage solution. — Bernardaud
Recovery of waste heat from furnace flue gases for preheating water used by the process boiler, via a flue gas/water heat exchanger. — ThyssenKrupp
Replacement of preheating enclosures operating with electric hot air blowers by a heat exchanger and an Eco-Stock®. — Industeel
Energy optimization of different zones of a foundry through the implementation of waste heat recovery systems. — FBM
Reduction of electric arc furnace consumption by drying products upstream of charging. — Aperam
Multi-energy platform (Heat to Heat, heat mobility, Power to Heat, Heat to Power, Power to Power) tested at industrial scale. Funded by the European Commission's Innovation Fund.
Multi-energy, multi-technology storage/discharge platform built for the LTEN laboratory in Nantes.
Demonstration of the Eco-Stock® under real conditions at a European heavy industry site. Eco-Tech Ceram was selected by the highly competitive European H2020 SME Instrument Phase II program.
Development of a 360 kWh pilot storage unit, fully containerized, mobile and modular. — ArcelorMittal
Development of a prototype capable of storing heat up to 900 °C, with intelligent remote control.
Development of eco-designed thermal storage units for the energy transition and waste heat recovery.
Design and build of a turnkey, high-temperature, mobile test bench.
Recovery of complex industrial waste heat. — Labcom Solutec
Mini solar power plant producing electricity day and night, without batteries. — Sun2P
Development of innovative ceramic materials from residues, by-products and waste. — Maciseb
Stochastic co-optimization of hybrid heat and electricity storage: optimal sizing and management of an energy network.
High-temperature heat storage optimization using thermocline technology. — Opticline
Partners & awards
Equity participation — Series B 2025
Equity participation — Series B 2025
Energy transition partner
Origin of the Eco-Stock® technology
+50 scientific publications
Eco-Stock® labeled Efficient Solution
Winner of Bpifrance’s Global Innovation Competition in 2014, 2017, and 2020.
Member of French Tech & French Lab.
France 2030 investment plan — ATEE
30 minutes to identify if your site is eligible. Free preliminary assessment.