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Effect of La2O3 on Performances of NiO/HMCM-56 Catalyst in Hydrodealkylation of C +9 Heavy Aromatics
Author(s): 
Pages: 249-255
Year: Issue:  3
Journal: Petrochemical Technology

Keyword:  氧化镧氧化镍/HMCM-56分子筛催化剂C+9重芳烃加氢脱烷基;
Abstract: 采用等体积浸渍法制备了NiO质量分数6%、La2O3添加量不同的La2O3-NiO/HMCM-56催化剂,考察了La2O3添加量和工艺条件对C +9重芳烃加氢脱烷基反应性能的影响,并采用XRD、H2-TPR、NH3-TPD和BET等技术对催化剂的物化性质进行了研究.实验结果表明,添加La2O3可以提高NiO在催化剂上的分散性,改变催化剂的酸性分布与酸量,改善了催化剂的加氢脱烷基性能;在实验范围内,...
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