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


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
$$C_2 H_6 + i - C_3 H_7 \to C_3 H_8 + C_2 H_5 $$
$$2i - C_3 H_7 \to i - C_6 H_{14} $$
Using the value of k2 obtained by Hiatt and Benson, k1 can be given in the following form:
$$\log k_1 (dm^3 mol^{ - 1} s^{ - 1} ) = (7.4 \pm 0.4) - (12.7 \pm 0.8 kcal mol^{ - 1} )/2.303 RT$$


Physical Chemistry Catalysis Pyrolysis Ethane Initial Rate 
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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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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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