随着环保法规和燃料油排放指标的日趋严格,国外各大炼油公司均加大对加氢裂化技术研发和应用方面的投入,通过新材料和催化剂制备新技术的应用,新一代加氢裂化系列催化剂的性能明显提升.通过改善载体孔结构、表面酸性分布和调整载体与金属之间的作用力,增加易于活化的二类活性中心数目,使得新一代加氢裂化预处理催化剂的加氢脱氮/芳烃加氢饱和活性和稳定性等性能显著提高.依赖于分子筛合成和改性等技术的进步,新一代加氢裂化催化剂不仅活性、选择性和稳定性获得进一步提升,其它方面性能也获得明显提升,如提高操作灵活性、扩大原料油适应性、降低氢耗和提高产品质量等.%With the strengthening of environmental regulations and motor fuel specifications, large refining companies and research institutes outside China pay more attention and provide more fund on the innovation of hydrocracking technology, thus, great progress in catalyst development is achieved. The performances of new series hydrocracking catalysts have been greatly improved since adopting new catalytic materials and preparation technologies. Through modifying the support pore structure and surface acidity distribution, adjusting the interaction between support and metals, incorporating more type II active sites (which is easy to be activated), the HDN/aromatics saturation activities and stability of new hydro-pretreating catalysts improve significantly. In addition, with the progress in technologies of zeolite synthesis and modification, the improved performances of new generation hydrocracking catalysts not only exhibit at the enhancement of activity, selectivity and stability, but also at the others including operation flexibility, feedstock adaptability, less hydrogen consumption and better product quality.
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