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OALib Journal期刊
ISSN: 2333-9721
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乙醇对pt/sapo-11和pt/zsm-22催化剂烷烃异构化性能的影响
, PP. 207-211
Keywords: sapo-11,zsm-22,乙醇,正庚烷,临氢异构化
Abstract:
？选用sapo-11、zsm-22两种分子筛为载体，浸渍pt制备了pt/sapo-11和pt/zsm-22催化剂，以正庚烷为模型化合物，考察乙醇对催化剂临氢异构化反应性能的影响。并通过bet、xrd、c2h5oh-tpd和c2h5oh-ftir等表征手段对催化剂的物化性能以及吸附反应性能和不同活性酸性位点进行了研究考察。结果表明，乙醇在临氢异构转化过程优先生成h2o，并以h2o的形式影响催化剂的异构化性能，催化剂异构活性与选择性随乙醇含量的增加而降低。与pt/zsm-22催化剂相比，pt/sapo-11催化剂由于有p-oh基团，表现出一定的抗含氧化物乙醇的性能。
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