柴油加氢装置原料性质对加氢反应的影响

Effect of feedstock properties of diesel hydrogenation plant on hydrogenation

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。

The medium pressure hydroupgrading experiment of diesel oil was carried out in a fixed bed hydrogenation pilot plant with mixed diesel oil of different properties as feedstock.The reaction path was discussed and the effect of the feedstock properties on 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 is,the easier the cracking reaction will occur;when the reaction temperature is high,the aromatics content in the feedstock has a more significant influence on the cracking reaction.