Experimental study on the thermal oxidation of 2-chlorophenol in air over the temperature range 450-900 degrees C.
The thermal oxidation of 2-chlorophenol (2-CP) in air was investigated using a perfectly stirred reactor at 1 atm over the temperature range 450-900 degrees C. The relative concentration of 2-CP was 1,000 ppm V (equivalence ratio Phi=0.03). About fifty organic products were identified as trace species. The concentration profiles of 2-CP, carbon oxides as well as those of seventeen major organic intermediates and six non-to-lower chlorinated dioxins and furans were presented as a function of temperature for a residence time of 2s. The most abundant intermediate products were carbon monoxide, 2H-pyran-2-one, chlorobenzene, 4-cyclopenten-1,3-dione, phenol, benzofuran, 2-chlorohydroquinone and 2-indanone. These concentration profiles have revealed that temperatures of at least 900 degrees C were needed to completely oxidize 2-CP, CO and all other organic byproducts to carbon dioxide. Reaction pathways accounting for the formation of most observed products are proposed.
Briois
Christelle
C
PhysicoChimie des Processus de Combustion et de l'Atmosphère (PC2A), UMR CNRS 8522 Université des Sciences et Technologies de Lille, 59655 Villeneuve d'Ascq, France.
Visez
Nicolas
N
Baillet
Christiane
C
Sawerysyn
Jean-Pierre
JP
D000388:Air / Q000032:analysis*; D000393:Air Pollutants / Q000032:analysis*; D001274:Atmospheric Pressure; D002733:Chlorophenols / Q000737:chemistry*; D006358:Hot Temperature; D017745:Incineration; D008956:Models, Chemical; D015394:Molecular Structure; D010084:Oxidation-Reduction
D000393:Air Pollutants; D002733:Chlorophenols; C030683:2-chlorophenol