【摘要】 综述了近年来二甲醚(CH3OCH3)在不同条件下气相氧化反应机理和动力学的研究情况。在高温(800~1 300K)条件下,CH3OCH3氧化反应时主要产物有CO,CO2,HCHO,CH4,C2H6,H2O等。在低温(室温~800K)条件下,CH3OCH3氧化反应分为两种情况:低压(低于100kPa)氧化反应,主要产物为HCHO;高压(100kPa以上)氧化反应,主要产物为HCOOH,同时生成CH3OCHO。在低温(不高于800K)条件下,CH3OCH3氧化反应的反应速率常数的测定值为(1~50)×10-12cm3/(m ol.s)。更多还原

【Abstract】 Recent researches on reaction mechanism and kinetics of gas phase oxidation of dimethyl ether under different conditions were reviewed.Oxidation of dimethyl ether mainly produced CO,CO₂,CH₄,HCHO,C₂H₆ and H₂O at higher temperatures（800—1 300K）.At lower temperatures（not higher than 800K）,gas phase oxidation of dimethyl ether proceeded in two different routes.Under lower pressures（below 100kPa）oxidation product was HCHO.Under higher pressures（above 100kPa）main products were HCOOH and CH₃OCHO.Study on kinetics of dimethyl ether oxidation mainly focused on reaction at lower temperatures.Kinetics constant measured was（1—50）×10^-12cm³/（mol·s）.更多还原