铜锌铝系醋酸乙酯加氢制乙醇催化剂的性能研究

来源 :天然气化工:C1化学与化工 | 被引量 : 0次 | 上传用户:sailordong
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采用共沉淀法打片成型制备出铜锌铝系加氢催化剂,考察了反应条件对该催化剂催化醋酸乙酯加氢制乙醇活性和选择性的影响。结果表明,在反应温度220℃、压力2.5 MPa、氢酯物质的量比30、液空速1.0 h-1时催化剂性能最佳,醋酸乙酯转化率为96.2%,乙醇选择性为99.4%。结合BET、XRD、XPS等手段对反应前后的催化剂样品进行了表征,发现催化剂具有明显的介孔结构,最可几孔径约16 nm,比表面积为50~60 m2/g,Cu0为催化剂主要活
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