负载型无铬超细铁基高变催化剂  

Loaded Type of Chromium Free Super-Fine Iron Base High Temperature Shift Catalyst

作　　者：华南平[1] 杨平[1] 杜玉扣[1] 

机构地区：[1]苏州大学化学化工学院,江苏苏州215006

出　　处：《化肥设计》2006年第3期25-28,共4页Chemical Fertilizer Design

摘　　要：采用胶体吸附法,将氧化铁纳米颗粒负载于镁铝尖晶石载体上,加入少量过渡金属氧化物助剂,制成含N iO、V2O5负载型超细铁基无铬高变催化剂。研究了该催化剂的结构、反应性能以及N iO、V2O5组分含量对催化剂活性的影响。结果表明,在水气比1.0和空速2000 h-1反应条件下,400℃和350℃的CO变换率分别达95%和80%;在高空速(3000 h-1)和低水气比(0.60)条件下仍具有很好的催化活性。Using colloid adsorption method, taking the ferrous oxide nanometer granule to load at the magnesium aluminium sharp crystal stone cartier, adding trace of interim metal oxide assistant, can make the NiO,V2O5 contained and loaded type super-fine iron base chromium free high temperature shift catalyst. Author has studied the structure of this catalyst, reaction property and the influence of NiO, V2O5 composition content on the catalyst activity, the result indicates that under the reaction condition of water-gas ration equal to 1.0 and empty tower speed equal to 2000 h^-1, the CO conversion rate under 400℃ and 350℃ reaches separately to 95% and 80% ;Very good catalysis activity still exists under conditions of high empty tower speed （3000h^-1） and low water-gas ratio （0.6）.

关 键 词：水煤气变换反应 铁基催化剂 超细颗粒 负载型催化剂 镁铝尖晶石 过渡金属氧化物 

分 类 号：TQ426.94[化学工程]