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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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铁镍磷化物催化剂在CO加氢制低碳醇反应的应用
DOI: 10.1016/S1872-2067(11)60460-9, PP. 1938-1944
Keywords: 一氧化碳,加氢,含氧化物,金属磷化物,磷化铁,磷化镍,氧化硅
Abstract:
？通过程序升温还原法制备了一系列氧化硅负载的不同P/M(M=Fe和Ni)摩尔比的金属磷化物催化剂,在553K,5.0MPa和H2:CO=2(摩尔比)的反应条件下用固定床反应器测试了它们催化CO加氢反应性能.结果表明,在FePx/SiO2(x为P/M摩尔比)催化剂上,液相产物是以甲醇为主的低碳含氧化物的混合物.而在NiPx/SiO2催化剂上,气态产物主要为甲烷,液相产物绝大多数是甲醇.表征结果表明,磷化物催化剂上的Fe2P,Fe3P,Ni,Ni2P,Ni3P和Ni12P5晶相在反应条件下是稳定的,没有形成磷化物的金属铁,在反应后转变成碳化铁晶相.
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