Pyrolysis Kinetics of Octalins

✍ Scribed by Dr. Bernd Ondruschka; Prof. Dr. Gerhard Zimmermann

• Book ID: 105353718
• Publisher: John Wiley and Sons
• Year: 1990
• Tongue: English
• Weight: 232 KB
• Volume: 332
• Category: Article
• ISSN: 1615-4150
• DOI: 10.1002/prac.19903320420

✦ Synopsis

Abstract

The gas phase pyrolysis of three octalins has been studied in a conventional flow system in the temperature range between 500 and 725°C and at pressures up to 70 Torr (educt) and 1 atm (reaction system), respectively. The reactions follow a first‐order rate law. The overall rate coefficients are given by the following Arrhenius parameters. 9(10)‐octalin (1): log k~1~ (s^−1^) = (14.71 ± 1.6) − (260.0 ± 6.2) kJ mol^−1^/2.303 RT; 1(9)‐octalin (2): log k~2~ (s^−1^) = (13.62 ± 0.9) − (239.1 ± 3.7) kJ mol^−1^/2.303 RT; trans‐1‐octalin (3): og k~3~ (S^−1^) = (14.76 ± 0.5) − (272.6 ± 1.8) kJ mol^−1^/ 2.303 RT. The mechanism of the thermal degradation of 1 to 3 is related to Retro‐Diels‐Alder fragmentation.