Effect of temperature and oxygen content on the release of organic and inorganic species during high temperature thermochemical conversion of PVC-condensate

In this study, the release of organic and inorganic species during high-temperature thermochemical conversion of PVC-condensate was determined online by Molecular beam Mass Spectrometry. The lab-scale experiments were conducted at 1000-1400 degrees C with an oxygen content reaching from 0 to 30 vol.%. The organic species under investigation were (C4H3+)-C-51, (C4H4+)-C-52, (C4H5+)-C-53, (C6H5+)-C-77, and (C6H6+)-C-78. The inorganic species under investigation were (HCl+)-H-36, (NaCl+)-Na-58, (NaO+)-Na-39, (COS+)-C-60, and Fe-56(+). This investigation showed for the first time that organics can be effectively destroyed even in an oxygen depleted atmosphere at 1400 degrees C. Furthermore, the release of chlorine, sulphur, and alkaline species is shown to be less temperature sensitive than oxygen sensitive in the temperature range of 1000-1400 degrees C. (C) 2015 Elsevier B.V. All rights reserved.