摘要
研究乙醇在Cu—N i—K/-γA l2O3催化剂上的汽化。反应是在常压低温(300℃)下进行。汽化产物的影响因素,分析在乙醇转化及产品组成变化上的停留时间和原料中乙醇-水的摩尔比。另外对不同金属的催化剂进行了实验,如Cu—K/-γA 2lO3,N i—K/-γA l2O3催化剂。通过提高停留时间和降低水在乙醇料液中的比率,即降低扩散阻力提高乙醇汽化,假定了一种可能的反应机理,该机理与实验结果一致,并试探铜和镍的作用。
Ethanol gasification using Cu-Ni-K/γ-Al2O3catalysts was studied. The reaction was carried out at a low temperature（300℃） and atmospheric pressure. The influence of the diffusional effects, the residence time and the water/ ethanol molar ratioin the feed on the ethanol conversion and on the product distribution was analysed. Additional experiments were performed with monometallic catalysts, such as Cu-K/℃-Al2O3 and Ni-K/γ-AL2O3 catalysts. Ethanol gasification is favoured by a diminution of the diffusional resistances, high residence time and low water to ethanol feed ratio. A probable reaction mechanism is postulated, which is consistent with the experimental results and let identify the function of each metal （copper and nickel）.
出处
《内蒙古石油化工》
CAS
2006年第11期19-21,共3页
Inner Mongolia Petrochemical Industry
关键词
乙醇重整
制氢
催化剂
镍铜催化剂
ethanol reforming
hydrogen prod uetion
catalysts
copper- nickel catalysts
