探索柴油加氢装置原料性质对加氢反应的影响
Study on The Effect of Feedstock Properties on The Hydrogenation of Diesel Oil
马文礼
作者单位：中石油克拉玛依石化有限责任公司
中文关键字：加氢改质；芳烃饱和；裂化反应；
英文关键字：Hydroupgrading；AH Unibon；Cracking reaction ；
中文摘要：以不同性质的混合柴油为原料，在固定床加氢中试装置上进行柴油中压加氢改质实验，对反应路径进行了探讨，并考察了原料性质对反应的影响。结果表明，原料芳烃含量较低时，更有利于芳烃饱和反应以及饱和烃裂化反应的进行。反应温度较低时，原料氮含量和芳烃含量越低，裂化反应更易发生；反应温度较高时，原料中的芳烃含量对裂化反应的影响更显著。柴油加氢改质反应过程可简化为芳烃发生加氢饱和反应生成环烷烃，生成的环烷烃和原料中原有的环烷烃再部分裂化为链烷烃。
英文摘要：The medium pressure hydrotreating experiment of diesel oil was carried out in a fixed bed hydrotreating pilot plant with mixed diesel oil of different properties as raw materials. The reaction path was discussed and the effect of the properties of raw materials on the reaction was investigated. The results show that when the aromatics content of feedstock is low, the aromatics saturation reaction and the cracking reaction of saturated hydrocarbons are more favorable. When the reaction temperature is low, the lower the nitrogen content and aromatics content in the feedstock, the easier the cracking reaction will occur; when the reaction temperature is high, the aromatics content in the feedstock has a more significant impact on the cracking reaction. The hydroupgrading process of diesel oil can be simplified as hydrogenation saturation reaction of aromatics to generate cycloalkanes, and the generated cycloalkanes and the original cycloalkanes in the feedstock are partially cracked to alkanes.