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<p>Recycling carbon dioxide (CO<sub>2</sub>) remains a challenge for long-duration crewed missions, as carbon is an essential element to produce vital resources. This article is a review of the state-of-the-art technologies for removing and recycling metabolically produced CO<sub>2</sub> in microgravity environments, including stations, habitats, vehicles, and suits. The study covers the breathable air requirements for astronauts, supply requirements for missions, carbon removal technologies, and synthetic and biological conversion routes from CO<sub>2</sub> to fuels, sugars, foods, pharmaceuticals, and materials.</p>

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Review of carbon dioxide removal and recycling in space

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月12日

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  • Cathryn O’Sullivan,
  • Thomas M. Kohl,
  • Kristina Konstas,
  • Xavier Mulet,
  • Kim Lee Chang,
  • Matthew R. Hill,
  • Anastasios Polyzos,
  • Aaron W. Thornton

摘要

Recycling carbon dioxide (CO2) remains a challenge for long-duration crewed missions, as carbon is an essential element to produce vital resources. This article is a review of the state-of-the-art technologies for removing and recycling metabolically produced CO2 in microgravity environments, including stations, habitats, vehicles, and suits. The study covers the breathable air requirements for astronauts, supply requirements for missions, carbon removal technologies, and synthetic and biological conversion routes from CO2 to fuels, sugars, foods, pharmaceuticals, and materials.