Decarbonization at the Anglo American Barro Alto Smelter Through Implementation of the Ecombustible Technology

Decarbonization at the Anglo American Barro Smelter through implementation of ecombustible technology.
Technical Paper
Posted on
December 17, 2025

The global metals industry faces mounting pressure to reduce carbon emissions and transition toward sustainable energy sources in smelting operations traditionally dependent on fossil fuels. Anglo American's Barro Alto nickel smelter in Brazil has undertaken a pioneering decarbonization initiative through implementation of Ecombustible Energy LLC's hydrogen-based fuel technology, with Gas Cleaning Technologies Engineering providing critical project engineering support. This groundbreaking project represents one of the first commercial-scale applications of hydrogen fuel in ferronickel smelting, demonstrating a viable pathway toward carbon-neutral metals production.

The Ecombustible technology replaces conventional natural gas or fuel oil burners with hydrogen-fueled combustion systems specifically engineered for high-temperature metallurgical applications. Gas Cleaning Technologies Engineering's role encompassed integrating the hydrogen combustion systems with existing smelter infrastructure, addressing safety considerations unique to hydrogen handling, and ensuring that the fuel transition maintains or improves smelting performance metrics including temperature control, thermal efficiency, and product quality. The engineering challenges included combustion system design, flame characteristics optimization, and emissions monitoring to verify the carbon reduction benefits.

Implementation of hydrogen-based fuel at Barro Alto directly reduces carbon dioxide emissions from smelting operations, replacing hydrocarbon combustion products with water vapor as the primary combustion byproduct. This transformation aligns with Anglo American's corporate sustainability objectives while positioning the facility at the forefront of green metallurgy practices. The project's success depends on reliable hydrogen supply infrastructure, proven combustion technology performance, and economic viability compared to conventional fuel sources—all factors addressed through the collaborative efforts of Anglo American, Ecombustible Energy, and Gas Cleaning Technologies Engineering.

This decarbonization initiative demonstrates Gas Cleaning Technologies' expertise in emerging sustainable technologies for the metals industry. Smelting operations worldwide seeking pathways to reduce their carbon footprint can benefit from GCT's experience integrating alternative fuel systems with existing metallurgical infrastructure, ensuring that environmental objectives align with operational reliability and economic performance requirements.

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Technical Paper