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以流态化催化裂化废触媒(SFC3R)为载体,采用浸渍法制备了微米级蛋壳型Ni/SFC3R催化剂,利用FIB(聚焦离子束)-EDX、XRD、H2-TPR和TEM技术对催化剂结构、表面物相和还原性进行了表征;考察了反应温度、压力和时间对C5石油树脂加氢反应的影响,并应用Gardner色号、软化点、GPC、FTIR和1HNMR对加氢改性C5石油树脂进行性能和结构分析。结果表明,SFC3R为分子筛结构,Ni活性组分主要分布在载体外层形成蛋壳分布,Ni O的平均粒径为21.5 nm,具有良好的分散性。C5石油树脂加氢的最优反应条件为:温度280℃,压力8.0 MPa,时间5 h,所得的加氢改性C5石油树脂Gardner色号<1,颜色为水白色,硫含量<10 mg/kg,溴值为0.45 g Br/100 g,C5石油树脂中的不饱和键加氢基本达到饱和,表明蛋壳型Ni/SFC3R具有优良的C5石油树脂催化加氢性能。
The micron-scale eggshell Ni / SFC3R catalyst was prepared by impregnation method using SFC3R as the carrier. The structure of the catalyst was characterized by FIB (focused ion beam) -EDX, XRD, H2-TPR and TEM The effects of reaction temperature, pressure and time on the hydrogenation of C5 petroleum resin were investigated. The effects of reaction temperature, pressure and time on the hydrogenation of C5 petroleum resin were investigated. The effects of Gardner color number, softening point, GPC, FTIR and 1HNMR on the hydrogenation of C5 petroleum resin Resin performance and structural analysis. The results showed that the SFC3R molecular sieve structure, Ni active components mainly distributed in the outer shell formed eggshell distribution, Ni O average particle size of 21.5 nm, with good dispersion. Hydrogenation of C5 petroleum resin hydrogenation optimum conditions: temperature 280 ℃, pressure 8.0 MPa, time 5 h, the resulting hydrogenated modified C5 petroleum resin Gardner color <1, the color is white, the sulfur content of <10 mg / kg and bromine value of 0.45 g Br / 100 g. The hydrogenation of unsaturated bonds in C5 petroleum resin is basically saturated, indicating that eggshell Ni / SFC3R has excellent catalytic performance for hydrogenation of C5 petroleum resin.