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OALib Journal期刊
ISSN: 2333-9721
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la2o3/γ-al2o3催化剂用于二甲醚二氧化碳重整制氢
, PP. 74-80
Keywords: 二甲醚,二氧化碳重整,氧化镧,氧化铝,氢气
Abstract:
？采用等体积浸渍法制备了不同负载量的la2o3/γ-al2o3催化剂，并考察了负载量和反应温度对催化剂用于二甲醚二氧化碳重整制氢反应的性能影响。结果表明，反应温度为550℃、la2o3负载量为15%时，催化剂表现出最好的性能：二甲醚的转化率为100%，二氧化碳的转化率达到85.4%，产物氢气的选择性高达93.3%，一氧化碳的选择性为76.04%，副产物甲烷的选择性仅为6.3%。550℃时其平均积炭速率为1.3875mg/（g·h）。研究还利用xrd、bet、tem、tg等方法对催化剂进行了表征。
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