Influence of N-methylaniline on a two-stage butane-air flame

✍ Scribed by R. Minetti; C. Corre; M. Ribaucour; L.R. Sochet

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 368 KB
• Volume: 91
• Category: Article
• ISSN: 0010-2180
• DOI: 10.1016/0010-2180(92)90067-y

✦ Synopsis

The influence of N-methylaniline (NMA) on flame stability and structure of a two-stage butane-air flame is studied. The stability of the flame system is reduced as increasing amounts of the inhibitor are added, particularly at lower pressures. At 1.8 bar and a low level of NMA (0.3% of butane) the structure of the two-stage butane-air flame, which was described in a previous communication with a particular emphasis on the H202/HO 2 chemistry, is slightly modified. Among the 18 chemical species profiles studied, the hydrogen peroxide and peroxy radicals profiles are most sensitive to inhibition. The second stage ignition is particularly affected as it results from a balanced concentration of the branching agent H202 controlled by the inhibitor. At higher concentration of NMA, the inhibition is more important, as revealed by the lifted positions of the flames.