一种新型微晶蜡加氢精制催化剂的研制

针对微晶蜡原料相对分子质量大、稠环芳烃含量高、加氢精制难度大的特点,通过优化催化剂载体的制备方法和活性金属的负载方式,开发了一种能适应较高空速的微晶蜡加氢催化剂。该催化剂具有孔体积和孔径大、表面酸性适宜、活性组分分散性好等特点。在小型加氢装置上对催化剂进行评价,结果表明,在较高空速下,该催化剂的微晶蜡加氢活性高于国内同类催化剂,且活性稳定性好。

DEVELOPMENT OF A NOVEL MICROCRYSTAL WAX HYDROREFINING CATALYST

The raw materials of microcrystal wax had the characteristic of large molecular weight and high content of polycyclic aromatic hydrocarbons, so it is difficult to be hydrorefining. A novel catalyst for hydrorefining microcrystal wax under high space velocity was developed by optimizing the preparation of catalyst support and the methods of loading active metals. This catalyst possessed large micropore volume and pore diameter, suitable surface acidity and well dispersed active metals. The catalytic performance of the catalyst was evaluated on a small scale hydrorefining unit. Test results indicated that this catalyst exhibited higher hydrorefining activity than that of the same type domestic catalyst under high space velocity; the stability of this catalyst was also good.