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Industrial projectPilot campaign, 2025

Valorsul

Waste-to-energy pilot campaign — Greater Lisbon, Portugal

First CO₂-capture pilot in Portugal — Hyperion on real waste-to-energy flue gas.

The campaign

To help a leading European waste-to-energy operator prepare for a low-carbon future, Hovyu deployed its containerized Hyperion pilot plant directly at the incinerator and captured CO₂ from real flue gas. The mobile unit was shipped to site and mounted in a matter of days, then connected to a live flue-gas line — turning a working incinerator into a hands-on carbon-capture demonstration.

Over the campaign, the pilot demonstrated the full capture cycle — CO₂ absorption and solvent regeneration — on genuine waste-to-energy flue gas, at high capture rates (the Hyperion process is designed for capture rates up to 99%). Just as importantly, it showed robustness: the Hyperion solvent remained stable under real operating conditions with minimal degradation. The campaign data was used to validate Hovyu's process model, giving a reliable basis for scaling the technology up.

The project also underlines the special value of carbon capture in waste-to-energy: because roughly half of the CO₂ from municipal waste is biogenic, capturing and storing it delivers genuine negative emissions — a powerful lever as the sector moves toward inclusion in the EU Emissions Trading System.

Hovyu's activities

Hovyu supplied and operated the pilot; designed and ran the test campaign; validated the process simulation model against the results; and delivered the basis for a full-scale scale-up study.

The Hovyu and Valorsul teams beside the containerized Hyperion pilot at the waste-to-energy plant
The Hovyu and Valorsul teams at the pilot on the Valorsul waste-to-energy site.
Hovyu's containerized Hyperion pilot installed beside the incinerator stack
The containerized Hyperion pilot connected to a live flue-gas line beside the incinerator stack.

At a glance

Client / site
Valorsul — waste-to-energy plant, Greater Lisbon region, Portugal
Sector
Waste-to-Energy (municipal solid waste incineration)
Technology
Hovyu Hyperion — containerized CO₂-capture pilot