- The ECLUSE tunnel, 1,288 meters long, was completed using microtunneling technology.
- The tunnel will transport steam from Indaver and SLECO to Evonik, reducing CO₂ emissions by 100,000 to 150,000 tons annually.
- Construction began in March 2024, with full project completion expected by the end of 2026.
- The steam is transported at 40 bar and 400°C, reducing Evonik's natural gas use equivalent to over 38,000 households.
Project Overview
The ECLUSE Scheldt Tunnel, Belgium's longest microtunnel at 1,288 meters, has been completed. This tunnel is a significant expansion of the ECLUSE steam network, connecting the left and right banks of the Scheldt River.
Technical Details
Constructed using microtunneling technology, the tunnel has an internal diameter of three meters and includes space for ECLUSE 2 pipelines, a maintenance path, and future pipelines. The boring process lasted 14 weeks, exceeding expectations with an average progress of 92 meters per week.
Environmental Impact
The tunnel will transport steam generated from waste-to-energy facilities operated by Indaver and SLECO to Evonik on the right bank. This connection is expected to reduce CO₂ emissions by 100,000 to 150,000 tons annually, supporting the energy transition in the Port of Antwerp.
Timeline and Future Steps
Construction began in March 2024, with the full project scheduled for completion by the end of 2026. A second, shorter boring of 185 meters under the Scheldelaan towards Evonik has also started, expected to take four weeks. Preparations for pipeline support structures are ongoing.
Operational Benefits
The steam, transported at 40 bar and 400°C, will significantly reduce Evonik's natural gas consumption, equivalent to the annual use of over 38,000 households. This project exemplifies industrial cooperation and technological innovation in achieving climate objectives.
