制备方法对镍基芳烃加氢催化剂抗硫性能的影响  

Influence of preparation methods of nickel-based aromatic hydrogenation catalysts on their tolerances to sulfur

作　　者：黄华[1] 尹笃林[1] 文建军[2] 张茂昆[2] 周冬京[2] 

机构地区：[1]湖南师范大学精细催化合成研究所,湖南长沙410081 [2]中国石化长岭炼化分公司研究院,湖南岳阳414012

出　　处：《工业催化》2004年第5期16-19,共4页Industrial Catalysis

摘　　要：用不同方法制备了一系列Ni/γ Al2O3负载型催化剂。在压力1 0MPa、温度200℃、空速2 0h-1条件下用固定床连续流动微反装置进行了抗硫性评价。模型反应物是质量分数为750×10-6噻吩的甲苯 噻吩混合溶液。结果表明,制备方法明显影响催化剂加氢活性和抗硫性能;催化剂活性差异主要取决于活性组分Ni在载体上的结构特征。A series of Ni/γ-Al2O3 catalysts were prepared by different methods. Tolerance of the nickel-based catalysts to sulfur poisoning was investigated via hydrogenation of toluene containing (750×10^(-6)) mass fraction of thiophene in a fixed-bed continuous-flow microreactor at 200 ℃,1.0 MPa and LHSV 2.0 h^(-1). It was shown that preparation methods have remarkable influence on hydrogenation activity and tolerance to sulfur of the catalysts. The main difference in activity attributes to the structure of nickel on the supports.

关 键 词：镍催化剂 抗硫 芳烃加氢 

分 类 号：TE624.431[石油与天然气工程—油气加工工程] TE624.93