The iron and steel industries are widely recognized as among the heaviest polluters in the world, responsible for a massive share of global greenhouse gas emissions. Over the years, a multitude of clean-tech startups have attempted to cut the sector\u2019s footprint, predominantly by trying to reinvent the fundamental ways raw metals are produced. However, emerging climate tech startup Helix Carbon believes that nearly all of those preceding ventures have been approaching the problem from the wrong direction entirely.<\/p>\n
\u201cAny attempt to decarbonize the steel industry without dealing with the blast furnace is not going to work,\u201d David Brown, Helix Carbon\u2019s co-founder and chief executive officer, told TechCrunch. <\/p>\n
A blast furnace is the colossal industrial apparatus responsible for turning raw iron ore into the metallic iron subsequently used to manufacture steel. Rather than attempting to entirely replace these deeply entrenched and historically vital furnaces, Helix Carbon wants to clean them up from the inside out. The startup\u2019s innovative approach promises to drastically slash the steel industry\u2019s carbon emissions while simultaneously boosting profit margins for iron producers\u2014a remarkably rare win-win scenario for a notoriously dirty industrial process that has operated largely unchanged for generations.<\/p>\n
To understand the scope of Helix Carbon\u2019s innovation, it helps to examine how traditional ironmaking works. Blast furnaces have been manufacturing iron for centuries by relying on coke, a heavily processed, carbon-rich form of coal, to help transform raw iron ore\u2014which is essentially iron bound tightly up with oxygen\u2014into pure metallic iron. The burning coke supplies the immense heat necessary to drive the chemical reaction, but it does not actually take part in the reduction process directly. Instead, carbon monoxide produced from the combustion does the heavy lifting of reducing the iron, a chemical term meaning stripping away its oxygen atoms.<\/p>\n
This chemical reduction process releases tremendous amounts of carbon dioxide, commonly known as CO2. Historically, this waste gas is treated as an inevitable byproduct and is normally dumped straight out of smokestacks and into the atmosphere. But Helix Carbon has devised a specialized technological system designed to intercept this waste carbon dioxide, convert it back into carbon monoxide, and recycle it right back into the blast furnace, closing the loop on a major carbon stream.<\/p>\n
At the core of Helix Carbon\u2019s process is an advanced electrolyzer, a specialized device that uses electricity and a carefully engineered catalyst to cleanly break off an oxygen atom from a carbon dioxide molecule. While electrolyzers themselves are not entirely new pieces of technology, Brown noted that his startup\u2019s specific design is unique because it can handle the entire, raw exhaust stream directly from a blast furnace. <\/p>\n
Most conventional electrolyzers on the market today are far too delicate to deal with raw industrial exhaust like that. They typically function only when fed purified, highly concentrated carbon dioxide, meaning that industrial exhaust usually has to undergo extensive, expensive chemical processing before those traditional devices can make use of it. Helix Carbon\u2019s ability to bypass this prerequisite step represents a significant engineering leap forward for industrial carbon management.<\/p>\n
By successfully capturing and injecting newly formed carbon monoxide directly back into a blast furnace, iron producers can significantly reduce the amount of fossilized coke they need to burn. The exact magnitude of these potential savings remains a subject of ongoing discussion within the scientific and industrial communities, according to Brown. While some academic and scientific papers suggest that as much as 90% of the traditional coke can be completely eliminated through this method, other independent studies suggest a more conservative figure ranging from 30% to 40%.<\/p>\n
Taking a pragmatic commercial stance, Helix Carbon is initially proposing that iron producers start by replacing roughly 33% of their traditional coke consumption. The company calculates that utilizing its proprietary technology to achieve this specific reduction would instantly save producers about $14 per ton of iron produced. <\/p>\n
\u201cThat may not seem like a lot on paper, but margins in the iron industry are famously thin,\u201d Brown explained, pointing out that even minor per-ton savings can drastically change the economic viability of a legacy steel mill.<\/p>\n
The global iron and steel industries combine to form a massive $2 trillion market, according to market data compiled by Grand View Research. This immense economic scale makes the sector an extremely appealing, high-stakes target for a young startup to chase. Yet, it is also notoriously difficult to disrupt because the heavy industrial equipment required to operate moves and changes very slowly, in large part because individual machines are built to last for generations. <\/p>\n
\u201cThere are blast furnaces that have lived for over 100 years,\u201d Brown noted, illustrating the sheer longevity and capital durability of the physical infrastructure that underpins global heavy manufacturing.<\/p>\n
To establish early commercial viability and bring in revenue well before it fully penetrates the slow-moving heavy steel sector, Helix Carbon has mapped out a secondary business strategy. The startup plans to actively court the specialty chemicals industry first, leveraging its versatile technology to target immediate commercial applications. <\/p>\n
\u201cWe don\u2019t need to capture the CO2 first,\u201d Brown said, outlining the company’s flexible operational philosophy. \u201cWe just utilize it, and that opens up the door of making chemicals on-site right out of waste streams.\u201d<\/p>\n
Capitalizing on its recent momentum, Helix Carbon presented live onstage during the Startup Battlefield pitch competition at TechCrunch Disrupt in San Francisco, which runs from October 13 to 15. The startup\u2019s appearance at the high-profile conference highlights the growing investor and media interest in hard-tech solutions designed to tackle hard-to-abate industrial sectors, proving that tackling the world’s dirtiest manufacturing processes may ultimately require working with the legacy infrastructure that built the modern world.<\/p>\n","protected":false},"excerpt":{"rendered":"
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