ISSN:
0538-8066
Schlagwort(e):
Chemistry
;
Physical Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The thermal reaction of hydrogen-butene-2-cis mixtures has been studied in a static system at low extent of reaction around 500°C. Hydrogen does not affect the thermal reaction itself of the olefin, but gives rise to new stoichiometries of hydrogenolysis and hydrogenation, which are specified: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{l} {\rm H}_2 + cis - 2 - {\rm C}_4 {\rm H}_8 = {\rm CH}_4 + {\rm C}_3 {\rm H}_6 \\ {\rm H}_2 + cis - 2 - {\rm C}_4 {\rm H}_8 = {\rm H}_2 + 1 - {\rm C}_4 {\rm H}_8 \\{\rm H}_2 + cis - 2 - {\rm C}_4 {\rm H}_8 = n - {\rm C}_4 {\rm H}_{10} \\ \end{array} $$\end{document} The reaction is described in terms of a molecular and free-radical mechanism. It is shown that the key process for the hydrogenolysis-hydrogenation reaction is and that the rate constant of this process can be determined from either propylene, or methane, or butene-1 formations: \documentclass{article}\pagestyle{empty}\begin{document}$$ {\rm k}_{{\rm 7'}} \simeq {\rm 10}^{{\rm 13}{\rm .1 - 24}{\rm .2/}\theta } \,{\rm cm}^{\rm 3} {\rm /mol} \cdot {\rm s} $$\end{document} with θ = 4.57 × 10-3 T kcal/mol. Other rate constants are estimated and agree with literature data.
Zusätzliches Material:
12 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/kin.550150103
Permalink
