Electrochemical Compression of Martian Atmospheric CO2 for In-Situ Resource Utilization

Martian in-situ resource utilization (ISRU), critical for methane fuel production and long-term human presence, necessitates pressurized CO₂. We propose developing an energy-efficient electrochemical CO₂ pump tailored for Mars, enabling direct capture and pressurization. This innovation not only reduces reliance on Earth-launched resources but also addresses terrestrial carbon capture, utilization, and storage (CCUS) challenges. With a projected booming space economy and growing CCUS market, this technology offers significant commercial potential across both planetary and terrestrial applications.

Government space agencies such as NASA, European Space Agency (ESA), and Japan Aerospace Exploration Agency (JAXA), alongside private companies like SpaceX, are driving demand for ISRU technologies to reduce reliance on Earth-supplied resources. With launch costs to Mars estimated at ~$2,000/kg, lightweight, high−efficiency systems like electrochemical CO2 pumps are economically compelling. These pumps could support methane fuel production via the Sabatier reaction, which requires pressurized CO2 at 5–10 bar. Their lack of moving parts ensures reliability in Mars’ harsh environment, characterized by extreme temperature fluctuations, dust storms, and low atmospheric pressure. With the global space economy projected to exceed $1 trillion by 2040 and ISRU technologies playing a pivotal role in Martian infrastructure, electrochemical CO₂ compression systems are poised to capture a growing share of this market. This technology addresses critical carbon capture, utilization, and storage (CCUS) challenges on Earth, offering a 30-50% energy reduction in CO₂ compression for industries responsible for ~25% of global emissions. With a projected $14 billion CCUS market by 2030 and applications in the growing hydrogen economy, this electrochemical pump provides superior efficiency and scalability compared to traditional systems. Its dual-use potential extends to Martian in-situ resource utilization (ISRU), projected to be a $10 billion market by 2035. Strategic partnerships and IP protection will enable stakeholders to capitalize on this technology's unique value proposition, driving sustainable industrial growth and interplanetary exploration.

This is a mature technology (TRL 7+) — the realistic path in is usually NASA's Technology Transfer Program: licensing an existing NASA patent, or a Space Act Agreement to use NASA facilities/expertise directly. NASA also runs a startup licensing program with no upfront fee for companies formed to commercialize a specific NASA technology.

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