抄録
Decomposition characteristics of benzene, toluene and xylene in a DC corona discharge in an artificial air at atmospheric pressure are investigated. By-products from benzene, toluene and xylene are identified by infrared absorption spectroscopy, and the decomposition processes of those substances in the corona discharge are examined. It is found that CO2, CO, HCOOH and (CHO)2O are major products, and that C2H2, HCN and (CHO)2 are minor products from benzene, toluene and xylene. It is also found that a major product, CH3COOCHO, and minor products such as CH3COOH, CH3COOONO2, CH4, HCHO and CH3COCHO are produced only in the artificial air containing toluene and xylene. CO2 is found to be a gaseous end product from benzene, toluene and xylene, and CO, HCOOH, (CHO)2O and CH3COOCHO are major intermediate products, which tend to be decomposed in the corona discharge. This leads that benzene, toluene and xylene are chiefly converted to CO2 via CO, HCOOH, (CHO)2O and CH3COOCHO.
