Abstract
The deuterium-neopentane exchange reaction on a single catalyst particle has been used to study the influence of intraparticle diffusion on product distribution. Experimental product distributions agree with those predicted by a two-parameter kinetic model. The parameters Φ and β representing diffusion limitation and desorption limitation, respectively, were varied independently by particle size reduction or catalyst pretreatment with oxygen. Thiele diffusion coefficients obtained from the deuterium-neopentane exchange experiments are about one-half of the Wicke-Kallenbach diffusion coefficients.
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