论文部分内容阅读
在柴油吸氧安定性能研究与评价的基础上 ,在 2 90～ 3 60K、氧分压 0 .10～ 0 .2 5MPa、无光照和Cu催化条件下详细考察了温度和氧压对大庆直馏柴油 (SRDF)和焦化加氢柴油 (HCDF)吸氧氧化性能的影响。研究结果表明 ,在给定的时间和氧压或温度条件下随温度或氧压的升高 ,柴油的吸氧量 (Va)迅速增加 ;氧压或温度越高或时间越长 ,柴油的吸氧量越大 ;在短的吸氧时间下Va 的变化幅度较小 ,而在长的时间下Va 变化幅度较大 ;低温对SRDF的吸氧量影响较大 ,而高温对HCDF的吸氧量影响较显著 ;氧压对SRDF的吸氧量有较大的影响 ,而对HCDF的吸氧量影响较小 ;低温或高氧压下HCDF的Va 小于SRDF ,而在高温或低氧压下HCDF的Va 反而大于SRDF。柴油中含有某些不饱和烃、特别是共轭二稀烃、环烷芳香烃类等不安定组分的种类越多及含量越高 ,就越容易发生吸氧氧化反应 ,它们的安定性能或质量下降越明显
On the basis of the research and evaluation on the oxygen-absorbing and stabilizing performance of diesel oil, the effects of temperature and oxygen pressure on the hydrogenation of Daqing were investigated in detail under the condition of no light and Cu under 2 0 3 ~ 3 60K, oxygen partial pressure 0 .10 ~ 0. 25MPa, Effect of SRDF and HCDF on Oxygen Oxidation Performance. The results show that at a given time and oxygen pressure or temperature conditions with increasing temperature or oxygen pressure, the oxygen uptake of diesel (Va) increases rapidly; oxygen pressure or temperature is higher or longer, the diesel suction The greater the amount of oxygen, the smaller the change of Va under short oxygen-absorbing time, but the larger the change of Va under long-time. Low temperature has a great influence on the oxygen uptake of SRDF, while the high oxygen uptake of HCDF The effect of oxygen pressure on the oxygen uptake of SRDF has a greater impact, while the HCDF oxygen uptake less affected; low temperature or high oxygen pressure of HCDF is less than the SRDF, and at high temperature or low oxygen pressure HCDF Va is larger than SRDF. Diesel oil containing some unsaturated hydrocarbons, especially conjugated diolefins, naphthenic hydrocarbons and other types of instability components of the more and the higher the content, the more prone to oxygen oxidation reaction, their stability or The more obvious quality decline