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co2加氢合成甲醇cu/zro2催化剂的失活因素

, PP. 1341-1345

Keywords: cu/zro2催化剂,甲醇合成,失活因素

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Abstract:

?采用低温氮气吸脱附、x射线衍射(xrd)、电镜(tem)以及热重差热(tg-dsc)等手段,对不同反应时间下cu/zro2催化剂的物理结构、微观形貌以及积炭情况进行了表征,分析了催化剂的失活原因。结果表明,造成催化剂失活的主要因素是活性组分烧结;其次,表面积炭覆盖其活性中心也造成催化剂活性在一定程度上的降低;而催化剂比表面积对其活性的影响较小。

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