Helix Carbon says it can make iron cheaper by recycling blast furnace pollution

Iron producers can cut costs by using less coke and selling recycled carbon byproducts.

Helix Carbon, a startup, has developed a technology to reduce carbon emissions in iron production by recycling blast furnace exhaust. Instead of replacing traditional blast furnaces, Helix Carbon's process uses an electrolyzer to convert waste carbon dioxide (CO2) from the furnace into carbon monoxide (CO). This recycled CO can then be reinjected into the blast furnace, allowing iron producers to use less coke, a key fuel source. The company claims this method can reduce coke consumption by 33% and save producers approximately $14 per ton of iron. Helix Carbon presented its technology at TechCrunch Disrupt, highlighting its potential to improve profit margins in the iron and steel industries, a market valued at $2 trillion. The startup also plans to initially target the specialty chemicals industry by utilizing waste streams for on-site chemical production.

Helix Carbon's innovation addresses a critical bottleneck in decarbonizing the iron and steel sector by working with existing blast furnace infrastructure rather than attempting to replace it. This pragmatic approach, focusing on efficiency gains and waste stream utilization, could make it more palatable for an industry known for its slow adoption of new technologies due to the longevity of its capital equipment. By presenting a clear economic incentive, the company aims to overcome the inertia of an industry with famously thin margins.

The startup's dual-pronged strategy, targeting both direct cost savings in iron production and opportunities in chemical manufacturing from waste, diversifies its revenue streams and market approach. This flexibility is crucial for a young company entering a massive but conservative $2 trillion market, potentially accelerating its path to profitability and broader adoption of its emissions-reducing technology.