CAJ | 학술논문

采用沉淀法制备 Ni-Mo 催化剂前驱体，添加聚乙二醇（PEG）对其进行改性，经干燥、成型、焙烧制得 Ni-Mo催化剂，采用 XRD、BET 分析、SEM 等方法对催化剂进行了表征，并以西太平洋催化柴油为原料，考察了添加 PEG对催化剂的加氢脱硫（HDS）反应性能的影响。结果表明，PEG 的添加，可改善催化剂的结构和表面性质，随着 PEG用量的增加，催化剂的孔体积、比表面积和孔径也逐渐增大，而活性组分分散度先增加后减少。PEG 的添加，可以提高非负载型 Ni-Mo 催化剂的加氢脱硫活性，对催化剂物相组成方面没有影响。
채용침정법제비 Ni-Mo 최화제전구체，첨가취을이순（PEG）대기진행개성，경간조、성형、배소제득 Ni-Mo최화제，채용 XRD、BET 분석、SEM 등방법대최화제진행료표정，병이서태평양최화시유위원료，고찰료첨가 PEG대최화제적가경탈류（HDS）반응성능적영향。결과표명，PEG 적첨가，가개선최화제적결구화표면성질，수착 PEG용량적증가，최화제적공체적、비표면적화공경야축점증대，이활성조분분산도선증가후감소。PEG 적첨가，가이제고비부재형 Ni-Mo 최화제적가경탈류활성，대최화제물상조성방면몰유영향。
The Ni-Mo catalyst precursors were prepared by precipitation method and modified by adding polyethylene glycol(PEG),then the Ni-Mo catalysts were finally obtained after drying,molding and calci-nation. The catalysts were characterized by XRD,BET analysis and SEM. And investigated the effect of adding PEG hydrodesulfurization catalyst(HDS)reaction performance by Western Pacific diesel catalytic as materials. The results showed that PEG is added to improve the textural properties and surface proper-ties of the catalyst. The pore volume,specific surface area and pore size of the catalyst gradually increase with the dosage of PEG increasing,while the dispersion of the active ingredient climb up and then de-cline. Addition of PEG could improve the HDS activity of the unsupported Ni-Mo catalyst while have no effect on the stability of the catalyst.