La carbon dioxide (CO₂) capture It has become one of the fundamental pillars for reducing emissions in industrial sectors where other alternatives, such as electrification or energy efficiency, are not yet viable or insufficient. This technology, which allows the separation and concentration of CO₂ from different processes and sources, is destined to play a decisive role in decarbonization, both through geological storage as well as its use in new products or fuels.
In the current scenario, CO₂ capture It appears to be an indispensable tool for achieving European and Spanish climate goals, especially in the cement industry, the steel industry, and other sectors responsible for emissions that are difficult to eliminate. Keeping an eye on its evolution, understanding its challenges, and understanding the keys to its deployment are crucial for assessing the energy and productive future of our country and the continent.
Situation and priorities in the European Union
La European Union identifies carbon capture and storage as one of the few realistic solutions to maintain the competitiveness of high-emission industries and achieve climate neutrality. Countries such as Netherlands, Denmark, Belgium or Sweden They are ahead of the curve, taking advantage of geographical advantages—such as their access to the North Sea—and solid experience in geological storage. In these countries, the strategy includes specific roadmaps, financial incentives and international agreements to allow cross-border transport and storage of CO₂.
In parallel, the European Commission has promoted a series of regulatory and financing measures. Highlights include Innovation Fund or lines for strategic projects in storage and transport, in addition to a strengthened regulatory framework requiring Member States to identify and publish potential storage sites and advance CO₂ transport infrastructure.
The Spanish case: challenges, progress and opportunities
Spain is showing a more cautious attitude toward its development, with slower progress in infrastructure and regulation compared to northern Europe. Currently, There is no large-scale industrial CO₂ capture plant in operation, nor completed transport or geological storage networks.
However, relevant initiatives are underway, such as the pilot project TarraCO₂ in Tarragona or developments in the cement sector that are beginning to show the way forward. It is also noteworthy that, according to the Enagás consultation, more than 30 Spanish companies are showing interest in incorporating CO₂ capture and requesting transport and storage infrastructure.
Regulatory hurdles remain a challenge, as current legislation only regulates storage, leaving aspects such as capture and transportation in the background. Furthermore, legal restrictions on shipping CO₂ by sea to other countries hinder its viability for industries without access to domestic storage processes.
Complementarity of solutions: between nature and technology
The debate on CO₂ capture evolves towards an integrative vision, where strategies nature-based and technological methods such as direct capture from industrial sources (CCS) or from the air (DACCS)
The Intergovernmental Panel on Climate Change (IPCC) stresses the importance of combining both approaches: reforestation, wood waste management and ecosystem conservation They provide rapid and affordable reductions, while geological storage offers durability, albeit at greater cost and technical complexity.
An innovative example is the study by Cornell University, which proposes burying wood waste in managed forests to avoid carbon emissions. This methodology can significantly reduce future emissions by leveraging existing infrastructure and optimizing logistics processes.
International initiatives and carbon credits
The international carbon credits and negative emissions accounting are integrated into the European strategy, allowing for the financing of capture and storage projects in developing countries and facilitating flexibility for complex industrial sectors.
Examples such as the Swedish system, which transports CO₂ for underground storage, show that exporting captured CO₂ can be part of the solution, provided there is strong international regulatory cooperation.
Spain could explore collaborations with North African countries, which have geological potential and technical expertise, although these options require careful analysis and solid political agreements.
Innovation, social perception and barriers
CO₂ capture, storage and utilization technologies (CAUC) are progressing in technical maturity and public perception. In Spain, surveys show that citizens prefer industrial uses of captured CO₂ over geological storage, influenced by previous experience and concerns about environmental and seismic risks.
Technology and industrial companies are investing in innovation, such as the use of artificial intelligence to improve capture processes, although debates persist about its efficiency and long-term viability.
The main obstacles continue to be Cost, lack of infrastructure, insufficient regulatory frameworks, and uncertainty about CO₂ demand for industrial usesThe key will be to create an environment that encourages investment, streamlines procedures, and establishes effective public aid through coordination between the administration, the private sector, and society.
La CO₂ capture It is consolidating as a strategic element for decarbonization, especially in industries with emissions that are difficult to eliminate in the short term. Although progress is palpable in Europe and challenges remain in Spain, the opportunities are clear if regulatory obstacles are overcome and investment is made in innovation and international collaboration. The combination of natural and technological solutions, infrastructure development, and public support will be crucial for this path to become part of the global strategy to combat climate change.