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The Gas Phase Heterogeneous Catalysis of the Ortho-Parahydrogen Conversion at Low Temperatures under Pressure

  • D. S. Chapin
  • C. M. Cunningham
  • H. L. Johnston
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 1)

Abstract

The ortho-parahydrogen conversion was investigated on a series of Cr2O3-Al2O3 catalysts by the static method at 77°K and under various pressures. The results are shown in Figures 1, 2 and 3. A series of chromia-alumina impregnated catalysts in the range 0–3 percent Cr2O3-Al2O3 were compared with a number of commercially available catalysts in the range 20 to 35 percent Cr2O3-Al2O3. Approximately 0,7 gram mol of hydrogen was used in contact with 200 cc of each catalyst tested. It was found that the conversion followed first order kinetics (see Figures 4 and 5) and that the 1 percent catalyst gave approximately the same rate constant as the fastest commercial catalyst tested (see Figure 6).

Keywords

Static Method Concentration Dependency Heterogeneous Catalysis Order Kinetic Commercial Catalyst 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, Inc., New York 1960

Authors and Affiliations

  • D. S. Chapin
    • 1
  • C. M. Cunningham
    • 1
  • H. L. Johnston
    • 1
  1. 1.Cryogenic Laboratory of the Ohio State UniversityColumbusUSA

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