Gas-phase pyrolysis of 2,2,3,3-tetramethylbutane using a wall-less reactor

✍ Scribed by Jay E. Taylor; Thomas S. Milazzo

• Book ID: 102929820
• Publisher: John Wiley and Sons
• Year: 1978
• Tongue: English
• Weight: 529 KB
• Volume: 10
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/kin.550101207

✦ Synopsis

Abstract

The pyrolysis of 2,2,3,3‐tetramethylbutane (TMB) has been studied using the wall‐less reactor. Under homogeneous conditions up to 670°C, the activation energy is 43.2 kcal/mol and log A is 10.70. The products are 2‐methylpropene, hydrogen, propene, 2‐methyl‐2‐butene, ethane, ethene, methane, neopentane, and 2,3‐dimethyl‐2‐butene in order of abundance. Addition of toluene, cyclopentadiene, or nitrous oxide to the system increases both the activation energy and the A factor; whereas oxygen decreases both the activation energy and the A factor. Incorporation of stainless‐steel rods to provide surface has only a modest effect upon the rate. In view of this evidence, it appears that the homogeneous pyrolysis of TMB at higher pressures is a chain reaction under the described conditions.