한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제18권3호
  • /
  • Pages.317-324
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  • 2007
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

ORTHO/PARA 수소의 전환에의 연구

Study on the Conversion of Ortho to Para Hydrogen

  • 발행 : 2007.09.15
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초록

The conversion reaction of ortho to para hydrogen was studied. The percentage of ortho and para hydrogen is mainly dependent on the equilibrium temperature. Because this reaction is known to be accelerated by the catalyst such as nickel-silicate and ruthenium on silica, we focused in the test and development of the catalysts. We studied metal-silicates because they provide high metal dispersion on support. Nickel-silicate, ruthenium-silicate and mixed-silicate were prepared by the coprecipitation method and used in the reaction at the temperature of liquid nitrogen. The conversion was measured by the difference of thermal conductivity between reference gas and sample gas. The activation condition was important and it affected the activities of the catalysts. Nickel-silicate showed high activities. Ruthenium-silicate also showed relative high activities but mixed-silicate showed poor activities.

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참고문헌

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