Atmospheric composition and the feasibility of in-situ resource utilization on Venus

The extreme environmental conditions and unique chemical composition of 4 4 Venus's atmosphere make it a key target for planetary science while posing significant challenges and opportunities for in-situ resource utilization (ISRU).This paper proposes an integrated in-situ resource utilization system that combines filtration, enrichment, and spectroscopic detection for key atmospheric gases on Venus, including H₂O, PH₃, NH₃, H₂S, and SO₂.The system employs a multi-stage filtration unit to remove corrosive sulfuric acid aerosols and utilizes selective molecular-sieve adsorption to efficiently concentrate trace gases, thereby enhancing their detection sensitivity to meet the precision requirements of tunable laser spectrometers.These gases are not only potential resources for oxygen production, fuel synthesis, or chemical feedstock generation but also serve as crucial indicators of Venus's geochemical and atmospheric processes, including volcanic activity and redox balance.The proposed technical framework provides a feasible pathway for coupling scientific investigation with practical ISRU objectives in future Venus exploration missions.