Mo-Ni纳米自组装催化剂的表征与活性评价  

Characterization and activity evaluation of Mo-Ni naon self- assembly catalyst

作　　者：周润欣 李思洋[1] 田野[1] 王鼎聪[2] 赵德智[1] 宋官龙[1] 

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001 [2]中国石化抚顺石油化工研究院,辽宁抚顺113001

出　　处：《现代化工》2014年第11期69-72,共4页Modern Chemical Industry

摘　　要：以二次纳米自组装氧化铝为载体,浸渍以氨为溶剂、双金属活性组分配比不同的钼镍铵溶液,制备一种新型加氢催化剂,并对制得的催化剂进行表征和评价.结果表明,钼镍催化剂的孔性质稳定,孔径大小集中在3 ～10 nm和30 ～ 100 nm,其中在30～100 nm的孔道占33.70％ ～ 39.47％.以劣质催化裂化柴油为原料,对催化剂进行加氢活性评价,催化剂的脱硫率为81％～93％,脱氮率为87％ ～97％,芳烃饱和率为56％～ 67％,在催化剂运行时间内无明显结焦现象且活性较好.结合钼镍催化剂的表征数据及加氢活性评价结果发现钼镍质量比为7∶1时催化剂的性质最适宜,并且催化剂活性最优.A model of hydrogenation catalyst with various Ni/Mo mass ratio is prepared by using secondary nano self-assembly Al2O3 as carrier and Mo-Ni-N solution with NH3 as solvent. The characterization and evaluation of Mo-Ni naon self-assembly catalyst are also performed. The results demonstrate that the properties of Mo-Ni catalysts are basically stable. The porous sizes of the Mo-Ni nano self-assembly catalyst almost concentrate in 3 - 10 nm and 30 - 100 nm, 33. 70% - 39. 47% of which is in the range of 30 - 100 nm. Using inferior FCC diesel oil as raw material, the hydrogenation activity of the catalysts is evaluated. The desulfurization rate of Mo-Ni nano self-assembly catalyst is from 81% to 93%. The denitrification rate and aromatics saturation are around 87% -97% and 87% -67%, respectively. There is no obvious coking during the catalyst running time and activity is good. When Mo/Ni was 7： 1, Mo-Ni nano self- assembly catalyst has the most suitable property and optimal catalyst activity.

关 键 词：钼镍铵溶液 氧化铝 催化剂表征 催化剂评价 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]