| Summary: | 碩士 === 國立成功大學 === 環境工程研究所 === 83 === The incineration of volatile organic compounds(VOCs), including
CH3SH, C2H5SH, (CH3)2S and (CH3)2S2, over a Pt/γ-Al2O3
catalyst was carried out in a bench scale catalytic
incinerator. The study can be classified into three major
parts. First of all ,model were used to analyze the results of
incineration of CH3SH and (CH3)2S. Secondary, the differences
of the efficiency of catalytic incineration between binary
mixtures of these sulphur compounds (CH3SH/C2H5SH, CH3SH/(CH3)2
S, CH3SH/(CH3)2S2) with sing A differential reactor design was
used for best fit of kinetic model in this study. The results
show that the Langmuir- Hinshelwood model is suitable for the
catalytic incineration of both CH3SH and (CH3)2S. This
suggests that the adsorption of VOC or O2 molecule is very
important in the oxidation CH3SH and (CH3)2S. In the mixture
of CH3SH and C2H5SH, catalytic incine- ration of CH3SH is
significantly inhibited by C2H5SH, however, incineration of C2H5
SH is not affected by CH3SH.(C2H5)2S2 , one of the
intermediates of oxidation of C2H5SH, is found by GC/MS. In the
mixture of CH3SH and (CH3)2S, catalytic incineration of both
items are inhibited by each other. In the mixture of CH3SH and
(CH3)2S2,catalytic incineration of CH3SH is inhibited by (CH3)2
S2, however, the changs of catalytic incineration of (CH3)2S2
is difficult to tell because it is the intermediate of
oxidation of CH3SH. The poisoning effects of CH3SH and (CH3)2S
on the catalyst decrease with the increasing inlet temperature.
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