离子交换树脂支载的加氢催化剂的制备及在乙二醇精制中的应用  

PREPARATION OF ION EXCHANGE RESIN-SUPPORTED HYDROGENIZING CATALYSTS AND THEIR CATALYTIC ACTIVITY IN REFINEMENT OF ETHYLENE GLYCOL

作　　者：丁丽娟[1] 何明阳[1] 张益峰[1] 陈群[1] 

机构地区：[1]常州大学江苏省精细石油化工重点实验室,常州213164

出　　处：《离子交换与吸附》2011年第1期90-96,共7页Ion Exchange and Adsorption

摘　　要：制备了一种离子交换树脂支载的Ni-B非晶态合金催化剂,对催化剂形态及孔结构等进行了表征;将该催化剂用于催化加氢法降低乙二醇中甲醛含量的实验,考察了反应温度、乙二醇空速和压力对该催化剂催化条件下甲醛去除率的影响。结果表明,Ni-B分散在树脂载体表面和内部的孔中,催化剂孔径约20nm,属于介孔范围;在反应温度353K、乙二醇液时空速3h-1、压力0.5MPa条件下,催化剂连续运行500h,乙二醇中甲醛含量由45μg/g降低至3μg/g以下,甲醛去除率达到95%。An ion-exchange resin supported amorphous Ni-B alloy catalyst was prepared and was used to reduce the aldehyde content in ethylene glycol.The results showed that the amorphous Ni-B alloy was dispersed on the surface of the supports and also in the pores of the supports.The pore diameters of catalysts were about 20nm,being in the category of mesopores.Under the reaction condition of temperature 353K,ethylene glycol liquid hourly space velocity 3h-1,H2 pressure 0.5MPa and hydrogenation time 500h,aldehyde content was reduced from 45μg/g to 3μg/g.The reduced efficiency of aldehyde content was up to 95%.

关 键 词：离子交换树脂 无定形Ni-B合金催化剂 催化加氢 乙二醇精制 

分 类 号：TQ426.6[化学工程]