Plasma technology works at industrial scale by using electrical energy to generate a high-temperature plasma state that breaks molecular bonds in CO₂, converting it into carbon monoxide and oxygen without combustion or fossil fuel inputs. The core mechanism is electrified: renewable electricity drives the reaction, making the process compatible with decarbonization targets across heavy industry. The sections below answer the most common technical and operational questions about how industrial plasma CO₂ conversion actually works.

What actually happens inside a plasma reactor?

Inside a plasma reactor, an electrical discharge accelerates electrons to extremely high energies, creating a plasma state in which gas molecules are broken apart at the molecular level. When CO₂ enters the reactor, the carbon-oxygen bonds are severed by this energized environment, producing carbon monoxide (CO) and free oxygen. No combustion takes place, and no fossil fuel is consumed in the reaction itself.

The plasma state is not a conventional chemical reaction driven by heat alone. Instead, it relies on selective activation: high-energy electrons transfer energy directly to the CO₂ molecules, targeting the bond that needs to be broken. This selectivity is one reason plasma is particularly well suited to CO₂ conversion. The process operates at ambient pressure and can be powered entirely by renewable electricity, which means the carbon footprint of the conversion step is determined by the electricity source rather than by the chemistry itself.

In D-CRBN’s Plasma ARC™ platform, the reactor design is optimized to maximize conversion efficiency while minimizing energy waste. The system produces no byproducts such as carbon black, and the oxygen released during CO₂ splitting can be recovered and reused within the industrial process. Pilot results have demonstrated a 90.5% CO₂ conversion rate in a single pass, which is a technically significant result for any single-pass conversion process.

How is plasma CO₂ conversion different from carbon capture and storage?

Plasma CO₂ conversion and carbon capture and storage (CCS) are fundamentally different in what they do with CO₂. CCS captures CO₂ and permanently stores it underground, removing it from circulation but producing no usable output. Plasma CO₂ conversion captures CO₂ and transforms it into a valuable industrial feedstock, specifically carbon monoxide or syngas, which re-enters the production cycle as a raw material.

The distinction has significant economic and operational consequences. CCS requires ongoing energy expenditure for compression, transport, and injection, with no revenue generated from the stored CO₂. Plasma conversion, by contrast, produces a product with market value. Carbon monoxide is a critical feedstock in the production of chemicals such as acetic acid and polycarbonates, as well as a reducing agent in steelmaking. Syngas is a building block for synthetic fuels and a range of chemical processes.

From a regulatory standpoint, CCS counts toward emissions reduction targets by removing CO₂ from the atmosphere. Plasma-based carbon capture and utilization (CCU) reduces the need for fossil-derived feedstocks, which lowers the overall carbon intensity of the products manufactured. For industries subject to the EU Emissions Trading System, this translates directly into lower ETS exposure. The two approaches are not mutually exclusive, but for industries that generate CO₂-rich off-gases on-site, plasma conversion offers a pathway that generates revenue rather than cost.

How efficient is plasma technology compared to conventional CO₂ conversion methods?

Plasma CO₂ conversion is significantly more energy-efficient than conventional methods for producing carbon monoxide from CO₂. D-CRBN’s Plasma ARC™ technology requires approximately 1,100 kWh per tonne of CO₂ converted, and the process is at least five times more efficient than the reverse water-gas shift reaction, which is the standard industrial method for generating CO alongside hydrogen. CAPEX is also approximately 50% lower than second-in-class reverse water-gas shift technology.

Efficiency is not an abstract metric in this context. The economics of CO₂ recycling technology depend on whether the cost of the converted feedstock can compete with fossil-derived alternatives. If the energy cost per tonne of CO produced is too high, the output cannot be priced competitively. The efficiency advantage of plasma conversion is therefore the central commercial enabler: it is what makes it possible to produce carbon monoxide at a price point that competes with fossil-based CO production without relying on a sustainability premium that the market increasingly resists.

A further efficiency advantage is operational flexibility. The plasma reactor can be switched on and off rapidly, which allows it to consume electricity during periods of surplus renewable generation, when grid prices are lowest. This load flexibility means that the effective energy cost can be reduced further through intelligent scheduling, and that otherwise curtailed renewable electricity can be stored in the form of CO or syngas rather than wasted.

What industries can use plasma technology at scale?

Plasma CO₂ conversion at industrial scale is applicable to any sector that generates significant volumes of CO₂-rich off-gases and has an operational need for carbon monoxide, syngas, or derived products. The primary verticals are steel production, petrochemicals, chemicals manufacturing, and synthetic fuel production. Each of these sectors has a specific technical pathway through which plasma conversion integrates into existing operations.

Steel production

Steel plants emit large quantities of CO₂-rich process gases from blast furnaces and direct reduction operations. Plasma conversion can take these off-gases and reduce the CO₂ back to carbon monoxide, which then re-enters the blast furnace as a reducing agent, displacing coal and reducing dependence on green hydrogen. This application was validated at a major steel facility in Ghent, the first steel plant in the world to trial industrial plasma CO₂ conversion.

Petrochemicals and chemicals

Chemical and petrochemical producers use carbon monoxide as a core feedstock in synthesis routes for acetic acid, polycarbonates, and a range of other compounds. Electrified CO production from captured CO₂ streams replaces fossil-derived CO supply, reducing both the carbon footprint of the final product and exposure to fossil feedstock price volatility. The plasma reactor also generates high process temperatures without direct CO₂ emissions, offering an electrified alternative to gas-fired heating in certain configurations.

Synthetic fuels and e-fuels

Syngas, a mixture of carbon monoxide and hydrogen, is the precursor for synthetic fuels including e-methanol and sustainable aviation fuel (SAF). D-CRBN’s plasma syngas production route uses CO₂ and methane as inputs, producing syngas without requiring external hydrogen. This is particularly relevant for biogas upgrading applications, where biogenic CO₂ and methane are available on-site and can be converted directly into fuel precursors with a low lifecycle carbon intensity.

How does a plasma reactor integrate into existing industrial infrastructure?

A plasma reactor integrates into existing industrial infrastructure as a modular, on-site unit that connects to available CO₂ streams and delivers carbon monoxide or syngas directly into the facility’s existing gas distribution or process systems. The system is designed as a plug-and-play addition, requiring no write-offs on existing assets and no fundamental redesign of the host plant’s production process.

The modular architecture of D-CRBN’s SPARC reactor design allows deployment at two broad scales: below 100 ktpa of CO for distributed industrial sites with fast deployment and low infrastructure requirements, and above 100 ktpa for large-scale chemical, fuel, and high-volume industrial operations. Both scales use the same core technology, which means that a facility can begin with a smaller deployment and scale up as production requirements grow, without switching to a different technical platform.

One practical integration advantage is the system’s tolerance for diluted CO₂ streams. The plasma reactor operates effectively with CO₂ streams containing up to 50% nitrogen, which is a realistic composition for many industrial off-gases. This means that CO₂ does not need to be purified to a high concentration before entering the reactor, reducing the pretreatment burden and the associated capital and operating costs. The system is also compatible with variable process conditions, making it suitable for real-world industrial environments rather than only laboratory-grade input streams.

For industrial operators evaluating integration pathways, D-CRBN offers a site-specific design process. Teams can explore electrified feedstock options tailored to their existing CO₂ sources, energy infrastructure, and production targets.

Has plasma technology been proven at industrial scale?

Yes. Industrial plasma CO₂ conversion has been validated at pilot scale in a live steel production environment. The first industrial trial of D-CRBN’s plasma technology took place at a major steel plant in Ghent, Belgium, where the reactor used renewable electricity to split CO₂ captured from blast furnace off-gases. The resulting carbon monoxide was recycled as a feedstock within the steelmaking process, and the oxygen produced during splitting was consumed in-process to improve reactor efficiency.

This validation is significant because it demonstrates the technology operating under real industrial conditions, not in a controlled laboratory setting. Industrial environments present challenges that laboratory pilots do not: variable gas compositions, continuous operation requirements, integration with existing safety and process control systems, and the need to deliver consistent output quality. The successful trial at the steel plant confirmed that the plasma reactor meets these operational demands.

The scientific foundation behind the technology adds further credibility. D-CRBN is a spin-off from the University of Antwerp’s PLASMANT research group, which has produced more than 600 publications and accumulated over 45,000 citations in plasma CO₂ valorization research. D-CRBN holds an exclusive license to the university’s relevant reactor intellectual property and has built its own proprietary reactor and process innovations on top of that foundation. The combination of academic depth and industrial validation positions the technology as one of the most credible CO₂ recycling platforms currently available.

Multiple demonstration projects are now advancing toward commercial deployment across the steel and chemicals sectors. For industrial operators ready to evaluate the technology for their own facilities, the D-CRBN team provides direct engagement on technical feasibility and deployment planning. The trajectory from pilot validation to commercial scale is already underway, supported by €17.5 million in Series A funding and recognition from the European Innovation Council’s EIC Accelerator Programme.

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