Experimental Study on Renewable Porous Carbon Dioxide Adsorbent Materials for Space Shuttles

Chun Zhang, Yu Wang, Tao Liu and Hanbing Ke
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Chun Zhang: School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
Yu Wang: School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
Tao Liu: School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
Hanbing Ke: Science and Technology on Thermal Energy and Power Laboratory, Wuhan Second Ship Design and Research Institute, Wuhan 430205, China

Energies, 2022, vol. 15, issue 14, 1-12

Abstract: Porous adsorbent material is promising to be used to regeneratively remove CO 2 from space shuttles. In this work, the amount and isosteric heat of CO 2 adsorption in solid amine are experimentally studied at pressures ranging from 0 to 6 bar and temperatures ranging from 20 °C to 60 °C. The amount and isosteric heat of water adsorption in the solid amine is tested at different humidities (relative humidity 30–80%). The effective thermal conductivity of the solid amine at different atmospheres (air, N 2 , CO 2 and water), pressures and temperatures is also investigated. The results show that the best temperature for CO 2 adsorption in the solid amine is 45 °C under dry conditions. The amount of water adsorption increases with enhanced humidity, while the isosteric heat of water adsorption remains a constant value. The effective thermal conductivity of the solid amine increases with an increase in pressure. The adsorbed phase (CO 2 and water) in the solid amine makes a contribution to improving the effective thermal conductivity of solid amine particles. The above findings can help design a better adsorption system in space.

Keywords: space shuttle; porous solid amine adsorbent materials; CO 2 adsorption; effective thermal conductivity (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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