Development of the Sabatier Reaction Catalyst for Practical Space Systems

Int. J. Microgravity Sci. Appl. 2013p086
Author
Asuka SHIMA, Masato SAKURAI, Yoshisugu SONE, Mitsuru OHNISHI, Akiko YONEDA, Takayuki ABE
Organization
Innovative Technology Research Center, Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Nippon Pillar Packing co.,Ltd., Hydrogen Isotope Research Center,University of Toyama
Abstract
The Sabatier reaction catalyzed by titania-supported ruthenium (Ru/TiO2) was investigated for the aim of practical water (H2O) generation from reduction of carbon dioxide (CO2) with hydrogen (H2) at lower temperatures. Various Ru/TiO2 catalysts in powder form were prepared by a dry processing named “barrel-sputtering”. Hydrogenation of CO2 to methane successfully proceeded on the catalysts at temperatures below 300°C without the formation of carbon monoxide (CO) even if pretreatment of the catalysts was carried out. It is noteworthy that catalytic activity of Ru/TiO2 catalyst was enhanced when the catalyst was immobilized in a three-dimensional structure. In addition, use of the immobilized catalysts resulted in significant alleviation of not only catalyst weight but also temperature differences in the reactor.
Keyword(s)
the Sabatier reaction, air-revitalization, titania-supported ruthenium catalyst, immobilization of catalyst
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