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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

Ion Exchange and Adsorption(2011)

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Abstract
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%。
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Key words
Amorphous Ni-B alloy catalyst,Catalytic hydrogenation,Ion exchange resin,Refinement of ethylene glycol
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