Technology showcase · Cogeneration from industrial waste heat
ANANKÉ
Cogeneration using high-temperature industrial waste heat.
Active member since April 2023
Understand the technology
Key fact From 450°C
01 — Understand
ANANKÉ technology, in three points
ANANKÉ integrates and manufactures waste-heat recovery solutions. It accelerates industrial energy transformation by deploying leading market technologies. Its patented KEOS and IONEX cogeneration modules recover high-temperature waste heat and convert it into compressed air, electricity and useful heat for industry.
01 The solution
Cogeneration using high-temperature industrial waste heat.
02 Technology principle
Based on the Ericsson engine, KEOS and IONEX modules turn waste heat into compressed air or electricity while recovering useful heat.
03 Applications
- Industrial compressed air
- Power generation
- Useful heat
- Waste streams above 450°C
ANANKÉ integrates and manufactures waste-heat recovery solutions. It accelerates the energy transformation of industry by deploying technologies ranked among the best on the market.
Alongside its systems-integration expertise, ANANKÉ has developed its own technology to recover high-temperature industrial waste heat, starting at 450°C.
This patented technology sits at the heart of two cogeneration modules: KEOS, which produces compressed air and useful heat, and IONEX, which produces electricity and useful heat.
KEOS, ANANKÉ’s eco-compressor
KEOS and IONEX are dedicated high-temperature waste-heat cogeneration modules that convert rejected heat into compressed air, electricity and useful industrial heat.
ANANKÉ’s innovative patented system is based on the Ericsson engine and specifically targets high-temperature industrial heat streams from 450°C. It is available in two cogeneration configurations:
- KEOS produces compressed air and recovers useful heat.
- IONEX generates electricity while also recovering useful heat.
KEOS in figures at Cristel France in Fesches-le-Châtel
Designed for thermal waste streams above 450°C and output below 1 MW:
- Electrical-equivalent output: 40 kWe
- Recovered waste-heat capacity: 300 kWth
- Useful thermal output: 200 kWth
- Combined heat and power efficiency: 80%
- Module lifetime: 20 years
- Avoided CO₂ emissions from gas: 404 tonnes per year
- Avoided CO₂ emissions from electricity: 101 tonnes per year
Project awards
- 2015 | Grand Prix National de l’Ingénierie
- 2019 | Winner of the ADEME i-Nov innovation competition
- 2022 | Winner of the ADEME IBaC PME call under France’s industrial decarbonisation strategy
- 2023 | Techinnov Award, France 2030 — Energy & Decarbonisation category
KEOS and IONEX are supplied as plug-and-play cogeneration systems that integrate smoothly without disrupting existing industrial operations. The CRISTEL project demonstrates both ANANKÉ’s equipment-manufacturing expertise and its ability to integrate effective industrial waste-heat recovery solutions.
