Purem By Eberspaecher Develops Direct Air Capture Technology

• Removing CO₂ from the atmosphere
• Transfer of expertise from exhaust technology
• Scalable technology with a focus on cost-effectiveness

To achieve the Paris Climate Agreement’s 1.5-degree target, it is necessary to take further proactive measures in addition to reducing carbon dioxide emissions. Purem by Eberspaecher will be presenting its specially developed Direct Air Capture technology at the Carbon Capture Technology World Expo, the world’s largest trade fair for CO_₂ capture.

“Groundbreaking solutions meet real challenges” will be the motto of companies and research institutions as they gather at the Carbon Capture Technology World Expo in Hamburg from 21 to 23 October 2025. The focus: approaches and developments for capturing CO₂ from the atmosphere and other sources of emissions. Purem by Eberspaecher will be presenting its new Direct Air Capture (DAC) solution for the first time at Booth F90 in Hall B6.

Negative emissions for climate protection
The exhaust and acoustic specialist offers a wide portfolio of components that help to reduce emissions in the mobility sector. Purem by Eberspaecher takes things a step further with its Direct Air Capture technology, presenting a system that removes CO_₂ from the atmosphere and generates negative emissions. Ambient air is passed through a reactor. This has a solid sorption medium to which carbon dioxide molecules adhere. Once these are saturated, the heating process begins and the carbon dioxide is released and collected in a gaseous state. It can either be stored (carbon capture storage) or re-used as a raw material (carbon capture utilization). A self-contained cycle that is climate-neutral is created. “Numerous sectors will not be able to sufficiently reduce their CO₂ emissions along their own production chain. Actively removing carbon dioxide directly from the atmosphere can play a key role in improving their carbon footprint,” explains Avinash Mutharja, Executive Vice President of Technology & Innovation, Purem by Eberspaecher. “Our DAC technology is an innovative approach to tackling this task. It is efficient, scalable, and adaptable to a wide range of applications.”

Storage and use of carbon dioxide
The Direct Air Capture approach from Purem by Eberspächer, presented at the Carbon Capture Technology Expo, is based on many years of expertise in catalysis. Following intensive research, the reactor now features an efficient process for storing and releasing carbon dioxide in under an hour, while also enabling the raw material to be purified to a particularly high degree. This means that the captured CO₂ can be used for a variety of purposes, including the production of synthetic fuels (e-fuels), plastics and fertilizers. If it is to be used further, carbon dioxide must be significantly purer than is required for long-term storage purposes – the solution developed enables both.

Location-independent and flexible technology
The system requires merely electricity to power the CO_₂ capture process; no other fuels or waste heat are necessary. This means that Purem by Eberspaecher Direct Air Capture technology can be used anywhere, including remote areas where renewable energy can be produced cost-effectively, even without a connection to the power grid. This can be achieved through methods such as wind power or solar generation. A load-flexible operating strategy makes this possible, whereby the system adapts to weather conditions and electricity availability while reducing the need for intermediate energy storage.

Carefully designed concept
The reactor is made of corrosion-, acid- and heat-resistant materials. In addition to robustness, Purem by Eberspaecher is focused on developing technology based on a scalable manufacturing concept that draws on the company’s own industrialization expertise. The aim is to continuously reduce the cost of separating one ton of CO_₂ and thus make a viable economic contribution to climate protection.

In addition to the launch of the Direct Air Capture approach, Purem by Eberspaecher will be showcasing its portfolio of products designed to optimize the performance of fuel cell systems at the Hydrogen Technology World Expo, which is taking place at the same time.