| Summary: | 碩士 === 逢甲大學 === 土木及水利工程研究所 === 85 === This thesis is discuss the decompose efficiency of the high-
temperature oxidation for principal organic hazardous
constituents in the industry waste. Eight organic hazardous
constituents were chosen to study the docompose conversion at
high-temperature oxidation, while the identify of the
intermediates and the kinetic study were carried out.The eight
organic hazardous constituents are sulfur hexafluoride, carbon
tetrachloride, bromoform, benzene, sym-tetrachloroethane, ethyl
chloride, hexachloroethane and 1,2,3,4-tetrachlorobenzene. This
study considered asuitable compound to be an indicator of high-
temperature oxidation fromsulfur hexafluoride, carbon
tetrachloride and bromoform. Then, a set of suitable relation
constants for indicator with other seven compounds in high-
temperature decomposition. Continuous flowing reattor was
chosen to study the high-temperatureoxidative decomposition and
kinetic. The gas samples be gotten that be-fore and after
reaction, would direct draw into GC-ECD/FID by gas capture.
Besides, the identify of the intermediates was also measured by
GC/MS and in-situ FTIR. The 95% decomposition temperatures
for sulfur hexafluoride, carbon tetrachloride, bromoform,
benzene, sym-tetrachloroethane, ethyl chloride, hexachloroethane
and 1,2,3,4-tetrachlorobenzene respectively are 1050, 820, 750,
825, 580, 750 and 725oC.In addition, the activity energy of
high-temperature oxidation, rate constant and portion order of
reaction have been measured. The results indicate that the
oxidative decomposition for sulfur hexa-fluoride, bromoform and
benzene does not have any intermediate, but theothers have some
intermediates. The intermediates of carbon tetrachloride,sym-
tetrachloroethane, ethyl chloride, hexachloroethane and
1,2,3,4-tetra- chlorobenzene are Cl2C=CCl2 and ClO2, ClHC=CCl2
and ClO2, CH3CH=O, Cl2C=CCl2and ClO2, C6H3Cl3 and ClO2. The
coefficient a and b of Fogler equation of all compounds where
calculated by using decompose rate and reaction temperature.
Those coefficientsand the indicator decompose rate, if know,
would supply to figure out or calculate the decompose rate of
those compounds in other incineration.
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