作　　者： ; ; ; ; ; ;

机构地区： 广州大学化学化工学院

出　　处： 《精细化工》 2010年第8期784-787,792,共5页

摘　　要： 采用XRD、TPR、BET等方法对几种Cu/Zn催化剂进行表征,考察了催化剂活性与寿命。发现Cu/Zn催化剂添加活性炭可使顺酐常压气相加氢合成γ-丁内酯(GBL)的反应温度降低至240℃。在优化条件下:液体空速为0.1h-1,氢酐摩尔比为50∶1,顺酐转化率100%,GBL选择性为93.28%,催化剂寿命达2000h以上。 A series of Cu/Zn catalysts were characterized by XRD,TPR and BET techniques.The catalytic activity and lifetime of these catalysts were investigated in the hydrogenation of maleic anhydride（MA） to γ-butyrolactone.The addition of activited carbon into Cu/Zn catalysts could decrease the reaction temperature to 240 ℃.At the optimum condition,which LHSV was 0.1 h-1 and the molar ratio of H2/MA was 50,the conversion of maleic anhydride was 100%,selectivity of γ-Butyrolactone was 93.28% as well as the catalyst lifetime was more than 2 000 hours.

关 键 词： 顺酐 气相加氢 丁内酯 活性炭 催化剂寿命

领　　域： [化学工程]