From Climeworks to Heirloom, the logic of direct air capture implementation and system evolution
1. Introduction: Why Look at Cases Instead of “Laboratory Parameters”?
In the field of DAC (Direct Air Capture) technology, laboratory parameters often appear very ideal: high CO₂ capture rates, low regeneration energy consumption, recyclable materials… However, what truly determines whether a technology has industrialization potential is not the parameters, but whether it can sustainably and stably operate in real scenarios and be integrated with industrial systems.
Instead of focusing on performance indicators, it is better to look at the project-level deployment cases that have been truly implemented globally.
2. Overview of Typical Global DAC Projects (Selection Comparison)
| Project Name | Company/Organization | Country/Region | Technology Path | Target Capacity (tons CO₂/year) | System Features |
|---|---|---|---|---|---|
| Orca | Climeworks | Iceland | Solid Amine Adsorption | 4,000 | Low-temperature heat pump + geothermal storage, stable operation |
| Mammoth | Climeworks | Iceland | Solid Amine Adsorption | 36,000 | Modular cluster deployment + waste heat regeneration |
| Heirloom | Heirloom Carbon | USA | Mineral Adsorption/Calcination | 1,000 → Expanding | Calcium oxide cycle + electric belt system |
| Carbon Engineering | Oxy/CE | USA | Liquid Absorption | 500,000 (planned) | Potassium carbonate absorption + high-temperature regeneration, industrial planning |
| 1PointFive | Oxy (in collaboration with CE) | Texas, USA | Liquid Absorption | 1,000,000 (target) | The world’s largest commercial CCUS project, paired with carbon storage |
| Mission Zero | Mission Zero Tech | UK | Electric Adsorption (new type) | Small scale | Room temperature capture + electric regeneration, low energy consumption demonstration |
| Carbyon | TNO-derived startup | Netherlands | Nano Adsorption Membrane | Demonstration phase | High specific surface area materials + ultra-low energy consumption target |
3. Deployment Strategy Analysis: Different Paths, Different Underlying Logics
Iceland Model (Climeworks)Utilizes Iceland’s abundant geothermal resources to provide low-temperature regeneration heat for DAC systems, forming a closed-loop path of DAC + geothermal + mineralization storage, which is highly demonstrative but limited in expansion due to resource distribution.
North America Model (CE / Oxy)Focuses on deploying DAC systems around large oil and gas assets, paired with existing carbon storage (CCS) infrastructure, pursuing industrial-scale deployment and carbon credit trading, with complex energy coupling and higher energy costs but large system scale.
Emerging Miniaturization Model (Heirloom / Mission Zero / Carbyon)Explores paths such as low-temperature adsorption, electric regeneration, and mineral adsorption, targeting urban edges and small carbon removal units, but still in early stages, with core challenges in cost control and scalability verification.
4. Three Main Deployment Path Models
1. Industrial Coupling TypeRelies on existing heat sources and CCS systems of oil and gas companies, with DAC becoming an extension of the system, suitable for resource-based industrial areas like North America and Australia.
2. Renewable Energy TypeCombines with renewable energy sources such as geothermal, photovoltaic, and wind power to form low-carbon energy-driven DAC systems, suitable for regions with favorable resource conditions (e.g., Iceland, northern Chile, Qinghai, etc.).
3. Distributed Modular TypeConstructs distributed modules through electric-driven small devices, suitable for urban edges, within parks, or carbon asset-dense locations, representing a potentially new path for the future.
5. Opportunities for China: Feasible Scenario Concepts
1. Park-level Carbon Neutral SystemsDeploy DAC modules in national/provincial industrial parks, coupled with carbon credit platforms and electrocatalytic fuel systems.
2. Renewable Power Surplus AreasIn regions with surplus photovoltaic and wind power in the northwest, deploy DAC + PtX + fuel preparation paths to form a green carbon chain.
3. Industrial Waste Heat ScenariosIndustries such as steel, coking, and chemicals have abundant waste heat resources that can provide regeneration heat sources for high-temperature DAC systems, forming a symbiotic system of carbon capture and emission reduction.
6. Eplus’s Perspective: Systems Are Superior to Single Points, Deployment Determines Value
We believe that DAC technology itself is no longer a bottleneck; what truly determines whether it is “usable, affordable, and scalable” is the design of the system and the adaptation to scenarios.
We advocate shifting fromindividual performance orientation tosystem synergy orientation:
-
Build “modular DAC units” that can connect to RWGS reactors and electrocatalytic CO₂ reduction systems, adapting to different industrial deployment conditions
-
Promote the systematic integration of “DAC + synthetic fuels” to connect carbon chain pathways
-
Seek a three-dimensional match of “technology path + energy system + scenario site”
In the future carbon-neutral landscape, every DAC project should not be an isolated device but an “interface node” in the carbon chain ecosystem.
Conclusion
The future of DAC is not about “building a device to capture carbon,” but about “creating a carbon entry point for an embedded system.” The value of cases lies not in replication but in inspiring us onhow to deploy a truly feasible carbon capture path in reality.
—
This article is organized and written by Eplus Energy (EPC) and is part of the “Low Carbon New Technology” series. For more DAC system solutions, technical parameters, or collaboration discussions, please contact us through the following:Website:www.electropowercell.netEmail:[email protected]