新型柴油加氢催化剂的制备及加氢脱硫性能的研究

摘要

硫脲作沉淀剂母体，柠檬酸作为络合剂，采用均匀沉淀法与纳米自组装方法相结合制备 Mo-Ni-P 加氢催化剂，并对 Mo-Ni-P 加氢催化剂进行了 BET、NH 3-TPD、CO 吸附及 XPS 表征，分析其结构及性质。BET 及 CO吸附分析结果表明，当沉淀剂的加入质量分数为40%时，催化剂表现出最佳的加氢脱硫的催化性能。40 h 的加氢实验表明，新型催化剂的平均脱硫率为95.3%，比对比催化剂高1.7%。%The nanometer autonomous vehicle assembly Mo-Ni-P hydrogenation catalysts were prepared by homogeneous precipitation using thiourea as precipitant matrix and citric acid as complexing agen.The catalysts were characterized by BET, NH 3-TPD,FT-IR spectra of CO adsorbed and XPS.The results of BET and FT-IR spectra of CO showed that when the content of thiourea was 40%,catalytic performance of the catalyst was best.The homogeneous precipitation catalyst achieved the desulfurization rate of 95.3% which was higher than the reference catalyst by 1.7%.