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Reaction Kinetics and Catalysis Letters

, Volume 1, Issue 4, pp 417–423 | Cite as

Kinetics of the decomposition of ethane sensitized by azoisopropane

  • L. Szirovicza
  • F. Márta
Article

Abstract

The azoisopropane sensitized pyrolysis of ethane was studied at temperatures from 496 to 548 K. Measurements were made of initial rates of formation of n-butane, i-pentane and 2,3-dimethylbutane. The results are explained in terms of the proposed mechanism by evaluating k1/k 2 1/2 for the reactions
$$C_2 H_6 + i - C_3 H_7 \to C_3 H_8 + C_2 H_5 $$
(1)
$$2i - C_3 H_7 \to i - C_6 H_{14} $$
(2)
Using the value of k2 obtained by Hiatt and Benson, k1 can be given in the following form:
$$\log k_1 (dm^3 mol^{ - 1} s^{ - 1} ) = (7.4 \pm 0.4) - (12.7 \pm 0.8 kcal mol^{ - 1} )/2.303 RT$$

Keywords

Physical Chemistry Catalysis Pyrolysis Ethane Initial Rate 
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.

Abstract

Был исследован пиролиз этана, инициированный азоизопропаном, при температурах 496+548°K. Измерялись начальные скорости образования н-бутана, изопентана и 2,3-диметилбутана. Полученные данные оценивались в рамках предложенного механизма; было рассчитано отношение k1/k21/2 для реакций:
Используя значение k2, полученное Хиаттом и Бенсоном, k1 может быть выражено следующим образом:

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References

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    R. Hiatt, S. W. Benson: Int. J. Chem. Kinet.,4, 151 (1972).Google Scholar
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    Z. B. Alfassi, S. W. Benson: Int. J. Chem. Kinet.,5, 879 (1973).Google Scholar
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    R. Renaud, L. C. Leitch: Canad. J. Chem.,32, 545 (1974).Google Scholar
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    R. S. Konar: Int. J. Chem. Kinet.,2, 419 (1970).Google Scholar
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    W. H. Jackson, J. R. McNesby, B. de B. Darwent: J. Chem. Phys.,37, 1610 (1962).Google Scholar

Copyright information

© Akadémiai Kiadó 1974

Authors and Affiliations

  • L. Szirovicza
    • 1
    • 2
  • F. Márta
    • 1
    • 2
  1. 1.Institute of General and Physical ChemistryJózsef Attila UniversitySzegedHungary
  2. 2.Gas Kinetics Research Group of the Hungarian Academy of SciencesSzegedHungary

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