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K↑2O和MnO助剂对Fe/Silicalite-2催化剂CO加氢制低碳烯烃性能的影响
Authors
徐奕德
徐龙伢
+5 more
杨力
王开立
王清遐
赵修松
黄家生
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Abstract
在Silicalite-2分子筛担载的铁催化剂中添加MnO和K2O助剂,可显著提高其CO加氢制碳烯烃的选择性及催化活性,MnO助剂主要抑制乙烯和丙烯的加氢反应而提高烯/烷比值,K2O助剂则增加催化剂对CO的吸附能力,同时抑制乙烯在催化剂表二次反应(主要是乙烯的歧化反应),从而有利于提高低碳烯烃的选择性及催化剂活性
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Last time updated on 07/01/2020