Activated carbons have a unique capability of strongly absorbing a great variety of species, ranging from SO2 and NOx, to trace organics, mercury, and other heavy metals. Activated carbons can also be used for gas storage and gas separations, including systems of practical interest to NASA (e.g., CO2/N2/O2), and even for the purification of liquids. No single activated carbon is suitable for all applications, but appreciable control over sorbent properties can be exercised in the process of carbon preparation. Since activated carbons can be produced from a wide range of organic materials, including waste streams, the preparation of activated carbons on board spacecraft should involve a limited amount of additional resources, help manage on-board waste, and reduce the weight of materials to be launched from earth. The feasibility of producing waste-derived activated carbons suitable for SO2 and NO control was the subject of the current study. The conclusions from this work are as follows: 1) high levels of NO and SO2 removal (up to 95%) were obtained with biomass-derived sorbents; 2) at low temperatures, the biomass sorbent performance was even better than that obtained with a commercial activated carbon which had a much higher nominal BET surface area (793 m2/g versus 292 m2/g); 3) in general, catalyst impregnation of wheat straw chars was successful, despite the microporous nature of these materials, and resulted in improved sorbent performance (higher removal efficiencies); 4) activation of the biomass (wheat straw) derived char with CO2 resulted in relatively high surface areas (∼300 m2/g) compared to most literature results for similar materials.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Utilization of Solid Waste for Activated Carbon Production in Space


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Conference On Environmental Systems ; 2003



    Erscheinungsdatum :

    2003-07-07




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Carbon Production in Space from Pyrolysis of Solid Waste

    Suuberg, Eric M. / Kroo, Erik / Fisher, John et al. | SAE Technical Papers | 2006



    Waste utilization for propulsion on manned space missions

    Good, C.D. / Mars, J.E. / Schmidt, E.W. | Engineering Index Backfile | 1968


    Waste Utilization for Propulsion on Manned Space Missions

    Good, C. David / Schmidt, Eckart W. / Mars, James E. | SAE Technical Papers | 1968


    Solid waste treatment and utilization and energy supply system for island

    TANG YUTING / LIU YUCHEN / TANG JIEHONG et al. | Europäisches Patentamt | 2023

    Freier Zugriff