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介孔Ni基催化剂上乙烷氧化脱氢制乙烯
Authors
万惠霖
李仁贵
+4 more
李建辉
汪彩彩
翁维正
黄传敬
Publication date
15 August 2009
Publisher
Abstract
以十二烷基硫酸钠为模板剂,尿素为沉淀剂制备了介孔氧化镍,并将该方法成功拓展至介孔NiMgO催化剂的合成.考察了这两种催化剂以及采用溶胶-凝胶法制备的纳米氧化镍催化剂对乙烷氧化脱氢反应的催化性能.结果表明,介孔氧化镍较纳米氧化镍在相同乙烷转化率条件下乙烯选择性更高,且前者反应温区大为扩展,因而乙烯收率更高.介孔氧化镍经Mg调变后,其催化性能进一步提高,在450oC,C2H6:O2:N2=1:1:4和GHSV=18000ml/(g·h)条件下,介孔NiMgO催化剂上乙烷转化率和乙烯收率分别为56.6%和30.1%,其乙烯收率远高于纳米氧化镍(15.9%)和介孔氧化镍(22.5%)
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Xiamen University Institutional Repository
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oai:dspace.xmu.edu.cn:2288/557...
Last time updated on 16/06/2016
Xiamen University Institutional Repository
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:dspace.xmu.edu.cn:2288/557...
Last time updated on 16/06/2016