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丙烯腈氣體之觸媒氧化反應參數研究

Parameters and effects of silver catalyst for Acrylonitrile oxidation

摘要


丙烯腈(Acrylonitrile)為製造壓克力纖維及ABS等塑膠產品的重要原料,其揮發氣體具有明顯氣味且具毒性,需要加以處理以維護空氣品質。本研究以含浸法製備Ag/CeO_2MnO_2觸媒進行丙烯腈揮發氣體之完全氧化反應,探討待處理氣體丙烯腈濃度、含氧量及觸媒空間速度、反應溫度等參數對丙烯腈完全氧化反應的影響。發現丙烯腈轉化率在反應溫度230℃時可達到99%以上。為了解實際應用於工業廢氣處理可行性,在本研究中並且分析處理後尾氣中NOx濃度發現,降低反應溫度有助於抑制NOx生成。

並列摘要


Ag/CeO_2MnO_2 catalysts were prepared by incipient wetness impregnation method and used for Acrylonitrile oxidation reaction. The activity of Ag/CeO_2MnO_2 catalyst was compared with the reaction parameters, such as catalyst loading, oxygen concentration, space velocity and reaction temperature. The catalytic activity is found to be higher over the condition of high catalyst loading, high oxygen concentration and low flow rate. NOx is one of the byproducts and can be well control in low temperature.

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