助剂B对含硅NiMo/Al_2O_3加氢处理催化剂性能的影响  

Effect of B promoter on Si-containing NiMo/Al_2O_3 hydrofining catalyst

作　　者：温德荣[1] 喻正南[1] 梁相程[1] 姚颂东[1] 王继锋[1] 

机构地区：[1]中国石化抚顺石油化工研究院,辽宁抚顺113001

出　　处：《工业催化》2007年第11期31-34,共4页Industrial Catalysis

摘　　要：考察了助剂B对含硅NiMo/Al2O3催化剂孔结构及表面酸性的影响,制备出一种孔容和比表面积大、孔分布集中、金属分布均匀和酸性适宜的加氢精制催化剂。分析结果表明,B的加入可以改善含硅氧化铝载体及催化剂的孔结构及表面酸性,有利于C—N键的断裂,从而提高催化剂的加氢脱氮性能。活性评价结果表明,采用适量B助剂改性的加氢处理催化剂具有高的加氢脱氮活性和稳定性。The＇effects of doping of B on pore structure and surface acidity of Si-containing NiMo/Al2O3 hydrofining catalyst were investigated. A hydrofining catalyst was prepared with high pore volume, high surface area, centralized pore distribution, uniform metal distribution and appropriate acidity. The results showed that addition of B improved pore structure and surface acidity of the support and catalyst and hence enhanced its HDN activity. 200 mL bench-scale test showed that the hydrofining catalysts modified by appropriate amount of B had higher HDN activity and stability.

关 键 词：加氢处理 加氢脱氮催化剂 助剂 

分 类 号：TQ624.9[化学工程—精细化工]