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A Comparison of Rate Expressions for the Low-Temperature Para-Orthohydrogen Shift

  • H. L. Hutchinson
  • L. F. Brown
  • P. L. Barrick
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 16)

Abstract

For purposes of either operational control of a reaction or reactor design, a mathematical expression relating the overall reaction rate to the composition of the fluid phase is essential. From the viewpoint of design or control, the fewer parameters in this expression, the better. Unfortunately, theory has not yet made sufficient progress that a priori calculation of these parameters is possible. Thus, at present, the principal use in the fields of control and design for these reaction-rate expressions is in interpolation and extrapolation of existing data. For extrapolation from one set of process conditions to another, the behavior of the parameters with changes in temperature and pressure should be known. The goal of this paper is to compare expressions which have been proposed for describing the low-temperature para-orthohydrogen shift reaction, to discuss the reliability of the expressions for different applications, and to consider the behavior with pressure and temperature of the parameters in these expressions.

Keywords

Rate Expression Separation Factor Intra Particle Diffusion Nonuniform Surface Cryogenic Engineer 
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

© Springer Science+Business Media New York 1971

Authors and Affiliations

  • H. L. Hutchinson
    • 1
  • L. F. Brown
    • 1
  • P. L. Barrick
    • 1
  1. 1.University of ColoradoBoulderUSA

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