ANALYSES OF PRODUCTS FORMED BY ELECTRON BEAM TREATMENT OF VOC/AIR MIXTURES

摘要

Butylacetate and xylene were irradiated with electron beam in the dose range of 0-10kGy at ambient temperature and the removal efficiencies measured by FID and gas chromatography. Gaseous reaction products were measured by FT-IR spectroscopy and by wet sampling of the irradiated gas. Ion chromatographic analyses of the gaseous samples showed that formic, acetic, propionic and butyric acids were important products for the irradiation of butylacetate and xylene. Aerosols were only formed by irradiation of xylene. The overall composition of the aerosols at 10 kGy can be represented by the formula C_(25)H_(36)O_(16)N. Mass balance of experiments for butylacetate and xylene was calculated on the basis of C-balance (mgC/Nm~3) and more than 80% recovery was obtained in all experiments. The reaction mechanism is discussed briefly.