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研究生:沈振良
研究生(外文):Shen, Zhen-Liang
論文名稱:以氧化鉻觸媒焚化含氯有機物之研究
論文名稱(外文):Incineration of Chlorinated Organic Compounds on Chromium Oxide Catalyst
指導教授:劉端祺
指導教授(外文):Liu, Duan-Qi
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:化學工程技術研究所
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:1997
畢業學年度:85
語文別:中文
論文頁數:90
中文關鍵詞:觸媒焚化氧化分解有機氯化物氧化鉻化學工程化學
外文關鍵詞:catalytic incinerationchlorinated organic compoundschromiaCHEMICAL-ENGINEERINGCHEMISTRY
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The decompositions of dichloromethane, chloroform
tetrachloride, dichloroethylene, chloridetrichloroethylene, and
tetrachloroethylene on Cr2O3/γ-Al2O3 catalyst were
investigated. The major interests of this research were placed
on knowing the conversion and the product distribution of the
decomposition. The effects of water and a second organics in the
feed were investigated. The cause of catalyst deactivation was
also examined. Catalysts were prepared by incipient wetness
impregnation and were characterized by ESCA and AA. The
decomposition reaction was conducted under atmospheric pressure
with a continuous flow tubular reactor. The feeding air
contained 1000 ppm organics. The reaction temperatures were
ranged from 100℃to 500℃. Under the same reaction condition,
the conversions of one -carbon organics decreased in the
following order : CCl4>CHCl3>CH2Cl2. The order showed the
conversion was proportional to the number of chlorine atom in
the compound. For organics of 2-carbons, the order was C2H2Cl2>
C2HCl3>C2Cl4. The conversion was decreased with the increase in
the number of chlorine atom CO2, HCl, and Cl2 were the major
products form the decomposition. The distribution of the
products was strongly affected by the reaction temperature and
the type of reactants to be decomposed Even though the
conversion of CHCl3 was not effected , the product distribution
was greatly influenced by the presence of water . The water
significantly inhibited the formation of Cl2. In decomposing
CH2Cl2, CHCl3, and CCl4, the rate of Cr2O3/γ-Al2O3 catalyst
deactivaton was in the order : CCl4>CHCl3>CH2Cl2. The loss of
Cr2O3 from Cr2O3/γ-Al2O3 was the main cause of catalyst
deactivation.

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