首页 | 本学科首页   官方微博 | 高级检索  
     

Au-NiO/TiO_2催化剂催化甲醇自热重整制氢
引用本文:崔冰冰,徐新,罗国华,佟泽民,陈德. Au-NiO/TiO_2催化剂催化甲醇自热重整制氢[J]. 石油化工, 2006, 35(6): 520-523
作者姓名:崔冰冰  徐新  罗国华  佟泽民  陈德
作者单位:1. 北京石油化工学院,材料与化工学院,北京,102617;北京化工大学,化学工程学院,北京,100029
2. 北京石油化工学院,材料与化工学院,北京,102617
3. 挪威科技大学,化学工程系,特隆赫姆,7491
摘    要:采用沉积-沉淀法制备了甲醇自热重整制氢Au-N iO/T iO2催化剂,并用X射线衍射、透射电子显微镜、能量色散X射线能谱对Au-N iO/T iO2催化剂进行了表征。表征结果显示,N iO可以改善载体T iO2粒子的分散度,使Au颗粒的粒径减小,Au颗粒的粒径主要分布在2~3nm;Au的负载量(质量分数)为1.63%左右。同时考察了反应温度和n(O2)∶n(CH3OH)对Au-N iO/T iO2催化剂催化甲醇自热重整制氢反应活性的影响。实验结果表明,当汽化温度为90℃、反应温度为200℃、n(O2)∶n(CH3OH)为0.30时,Au-N iO/T iO2催化剂的活性最佳,甲醇转化率和CO2选择性较高,CO含量较低。

关 键 词:甲醇  自热重整  制氢    氧化镍  氧化钛  催化剂
文章编号:1000-8144(2006)06-0520-04
修稿时间:2006-01-02

Au-NiO/TiO2 Catalyst for Methanol Autothermal Reforming to Produce Hydrogen
Cui Bingbing,Xu Xin,Luo Guohua,Tong Zemin,Chen De. Au-NiO/TiO2 Catalyst for Methanol Autothermal Reforming to Produce Hydrogen[J]. Petrochemical Technology, 2006, 35(6): 520-523
Authors:Cui Bingbing  Xu Xin  Luo Guohua  Tong Zemin  Chen De
Abstract:Production of hydrogen via methanol autothermal reforming on Au-NiO/TiO_2 catalyst,prepared by deposition-precipitation,was studied.The catalyst was characterized by means of XRD,TEM and energy dispersion X-ray spectrum(EDS).NiO in the catalyst could improve dispersion of TiO_2 particles and decrease particle size of Au.Au particles were highly dispersed on support.Their mean particle size was 2-3nm.Loading amount(mass fraction)of Au was 1.63%.Effects of reaction temperatures and n(O_2) ∶n(CH_3OH)ratio on autothermal reforming of methanol were investigated.The catalyst exhibited high methanol conversion,high carbon dioxide selectivity and low content of carbon monoxide in outlet at boiloff temperature of 90℃ and reaction temperature 200℃.When(n(O_2)) ∶n(CH_3OH)in feedstock was 0.30,Au-NiO/TiO_2 catalyst showed good activity.
Keywords:methanol  autothermal reforming  hydrogen production  aurum  nickel oxide  titania  catalyst
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号