A Study of the Products of Incomplete Combustion and Precursors Produced in the Flame and their Post Flame Modification from the Combustion of o-Dichlorobenzene in a High Resolution Laboratory Thermal Oxidizer

Abstract

Pure o-dichlorobenzene was burned in a controlled, reproducible, fuel rich flame, using a laboratory thermal oxidizer (LTOX). The fuel and gas flow rates and all zone temperatures, with the exception of the post flame zone, remained the same for all of the experiments. The post flame temperature was varied from 150 to 800°C, at intervals of 50 to 100°C. Products of incomplete combustion (PICs) were quantitatively collected in the product traps which were subsequently analyzed via GC/MS using the scanning mode. The data possessed a high degree of thermal resolution using the LTOX. Information on the temperature and LTOX zone where the various PIC isomers are made was obtained. It was also possible to determine isomer distributions, important radicals, precursors, and global reactions in order of their importance. Synthetic pathways were theorized from this information.

Key Words:

• o-Dichlorobenzene
• laboratory thermal oxidizer (LTOX)
• products of incomplete combustion (PICs).