Studies on catalysis by molten metal. V. Kinetics of the dehydrogenation of sec-butyl alcohol over the liquid indium catalyst

Akira Miyamoto, Yoshisada Ogino

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The dehydrogenation of sec-butyl alcohol was studied by using a device of rectangular duct type reactor containing liquid indium catalyst. The experimental conditions were as follows: temperature 450-550 °C, total pressure 1 atm, partial pressure of alcohol 0.1-0.4 atm, feed rate of alcohol 0.0937-0.6 mole/hr. The experimental results were found to obey a Langmuir-type rate equation, W = k10ρ{variant}A (1 + KAPA), which indicates that the surface unimolecular decomposition will be the rate controlling step. The respective values of KA and k10 were 1 × 10-3 exp (13,000/RT) atm-1 and 3 × 106 exp (-28,000/RT) cm/sec. The comparison of the experimental value of KA with the value estimated by statistical thermodynamics suggested that the adsorbed alcohol may be mobile on the surface of liquid indium. Further, the assumption of a mobile activated complex gave a theoretical k10 value which agrees fairly well with the experimentally determined value of k10.

Original languageEnglish
Pages (from-to)311-321
Number of pages11
JournalJournal of Catalysis
Volume27
Issue number2
DOIs
Publication statusPublished - 1972 Jan 1

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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