制备条件对水蒸气重整甲烷Ni/ZrO_2催化剂性能的影响

Influences of Ni/ZrO_2 Catalyst Preparation Conditions on Steam Reforming of Methane

研究N i/Z rO2催化剂对水蒸气重整甲烷制合成气的催化性能.研究表明,当N i负载量低于10%(质量分数)时,催化剂活性随N i负载量增加而增大,N i负载量大于10%后,反应温度为1 073 K时,CH4转化率逐渐接近其热力学平衡值.用N i或N iO的纳米粉体机械混合法制得的N i+Z rO2催化剂,因N i纳米微晶发生部分团聚,催化剂活性相对于浸渍法制备的N i/Z rO2低.

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