不同模板剂制备Mo-Ni系催化剂性质的研究
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摘要
根据纳米自组装机理,分别采用正向胶束法和反向胶束法制备了Mo-Ni-P和Mo-NiNH3浸渍体系的渣油加氢催化剂,考察了不同模板剂对催化剂样品性质及加氢活性的影响。利用氮吸附法、电子探针法对催化剂进行了表征。结果表明,以吐温-80作为模板剂制备的Mo-Ni-P和MoNi-NH3,催化剂FP-ZT 8和FN-ZP 8加氢活性最佳。FP-ZT 8的孔体积为0.34 m L/g,比表面积为187 m~2/g,活性金属质量分数为26.68%,其硫、氮、残炭的脱除率分别达到62.3%,58.9%,50.3%;FN-ZP 8的孔体积为0.38 m L/g,比表面积为185 m~2/g,活性金属质量分数为23.78%,其硫、氮、残炭的脱除率分别达到55.2%,50.9%,44.3%。
Based on nano- self- assembly mechanism,Mo- Ni- P and Mo- Ni- NH3 catalysts were prepared for residue hydrogenation by positive or negative micelle impregnation methods,the obtained catalysts were characterized by N2- adsorption and electron microprobe methods,and the influence of different template agents on properties and activities of the catalysts was investigated. The results showed that FP- ZT 8 and FN- ZP 8 catalysts with Tween- 80 as template agent had the best activity. The pore volume of FP- ZT 8 was 0. 34 m L /g,specific area 187 m2/ g,mass fraction of active metal 26. 68%,and its removal rate of sulfur,nitrogen and carbon residue reached 62. 3%,58. 9%,50. 3% respectively; the pore volume of FN- ZP 8was 0. 38 m L / g,specific area 185 m2/ g,the mass fraction of active metal 23. 87%,and its removal rate of sulfur,nitrogen and carbon residue reached55. 2%,50. 9% and 44. 3% separately.
Based on nano- self- assembly mechanism,Mo- Ni- P and Mo- Ni- NH3 catalysts were prepared for residue hydrogenation by positive or negative micelle impregnation methods,the obtained catalysts were characterized by N2- adsorption and electron microprobe methods,and the influence of different template agents on properties and activities of the catalysts was investigated. The results showed that FP- ZT 8 and FN- ZP 8 catalysts with Tween- 80 as template agent had the best activity. The pore volume of FP- ZT 8 was 0. 34 m L /g,specific area 187 m2/ g,mass fraction of active metal 26. 68%,and its removal rate of sulfur,nitrogen and carbon residue reached 62. 3%,58. 9%,50. 3% respectively; the pore volume of FN- ZP 8was 0. 38 m L / g,specific area 185 m2/ g,the mass fraction of active metal 23. 87%,and its removal rate of sulfur,nitrogen and carbon residue reached55. 2%,50. 9% and 44. 3% separately.
引文
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