乙二醇修饰促进的Ni/SiO_(2)催化剂碳五石油树脂加氢性能  

Performance of Ni/SiO_(2) catalyst promoted by ethylene glycol modification in hydrogenation of C_(5) petroleum resin

作　　者：张孟旭 李明杰 邰盛彪 管庆伟 叶涛 钱颖 沈亚峰 ZHANG Mengxu;LI Mingjie;TAI Shengbiao;GUAN Qingwei;YE Tao;QIAN Ying;SHEN Yafeng(State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Yunnan Precious Metal New Material Holding Group Co.,Ltd.,Kunming 650106,Yunnan,China;Sino-Platinum Industrial Catalyst(Yunnan)Co.,Ltd.,Kunming 650106,Yunnan,China)

机构地区：[1]云南省贵金属新材料控股集团有限公司,稀贵金属综合利用新技术国家重点实验室,云南昆明650106 [2]贵研工业催化剂(云南)有限公司,云南昆明650106

出　　处：《工业催化》2025年第1期51-57,共7页Industrial Catalysis

基　　金：云南贵金属实验室专项资金资助项目(YPML-2022050209,YPML-2023050216)。

摘　　要：以硅酸钠或硅溶胶为硅源,硝酸镍为镍源,采用共沉淀法与乙二醇修饰改性相结合制备了Ni/SiO_(2)催化剂。研究发现,使用乙二醇修饰Ni/SiO_(2)催化剂减少了其干燥和焙烧过程中的羟基缩聚(Ni-O-Ni)反应,从而避免镍活性组分团聚。N_(2)吸附-脱附、H_(2)-TPR、H_(2)-TPD、XRD、SEM等表征结果表明,采用乙二醇修饰制备的催化剂比表面积、孔容和孔径明显增大,活性金属镍与载体二氧化硅间的相互作用力增强,镍分散性高,暴露的镍活性位多。碳五石油树脂加氢结果表明,采用乙二醇修饰改性制备的催化剂加氢性能明显提升。Ni/SiO_(2) catalyst was prepared by traditional co-precipitation using sodium silicate and silica sol as silicon sources,and nickel nitrate as nickel source.The study showed that modification with ethylene glycol effectively reduced the condensation of hydroxyl groups(Ni-O-Ni)during drying or roasting and therefore reduced the agglomeration of Ni active components.The catalyst modified with ethylene glycol had the characteristics of large specific surface area,large pore structure,the stronger interaction force between the Ni active metal and the carrier.The finer particle size of Ni metal,the higher dispersion of the active components and more active sites were exposed as shown by the characterization results of N_(2) adsorption-desorption,H_(2)-TPR,XRD,H_(2)-TPD and SEM.Hydrogenation performance of C_(5) petroleum resin showed that the performance of catalyst modified with ethylene glycol was significantly improved.

关 键 词：石油化学工程 碳五石油树脂 加氢 改性 Ni/SiO_(2)催化剂 乙二醇 

分 类 号：TQ426.81[化学工程] O643.36[理学—物理化学]