CoMo/ZrO_2-Al_2O_3催化剂的加氢脱硫活性  

DHYDRODESULFURIZATION ACTIVITY OF CoMo/ZrO_2-Al_2O_3 CATALYST

作　　者：李国然[1] 李伟[1] 张明慧[1] 陶克毅[1] 

机构地区：[1]南开大学化学学院新催化材料科学研究所,天津300071

出　　处：《石油学报（石油加工）》2003年第5期22-26,共5页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金(20273035);高等学校博士学科点专项科研基金(2000005520);教育部南开大学;天津大学科技合作基金;天津市自然科学基金(重点)资助项目

摘　　要：制备了CoMo/ZrO_2-Al_2O_3系列催化剂,用程序升温还原技术考察了ZrO_2对催化剂还原性的影响,发现ZrO_2的质量分数为12％时,ZrO_2与活性组分间存在较强的相互作用。以二苯并噻吩为探针化合物,考察了催化剂在不同温度下的加氢脱硫(HDS)活性。结果表明,以ZrO_2含量为12％的复合氧化物为载体,负载4％CoO和15％MoO_3的催化剂具有最佳的催化活性,优于广泛使用的进口工业HDS催化剂KF707。A series of CoMo/ZrO2-Al2O3 catalysts was prepared. An investigation was carried out about effects of ZrO2 on reducibility of the samples by temperature-programmed reduction. A strong interaction between ZrO2 and the active metal components was observed, when ZrO2 content in ZrO2-A12O3 was 12% (Designated as ZA10). The hydrodesulfurization (HDS) activity of the catalysts at variable temperatures was studied, with dibenzothiophene as the model molecule. The results showed that the catalyst with ZA10 as support and loading with 4% CoO and 15% MoO3 (Designated as ZA10415) presented the highest catalytic activity, which was superior to commercial HDS catalyst KF707.

关 键 词：CoMo/ZrO2-Al2O3 催化剂 加氢脱硫 活性 相互作用 油品 硫含量 钼 钴 氧化锆 氧化铝 

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