不同类型渣油原料加氢反应特性的差异

发布时间：2019-04-29 06:28

【摘要】：采用相同催化剂级配方式,在相同工艺条件下进行加氢试验,考察了两类典型的固定床渣油加氢原料的反应特性,结果表明:渣油加氢过程中较易发生加氢脱硫反应,而相对较难发生加氢脱氮和残炭前身物加氢转化反应;不同类型渣油原料的加氢反应特性不同,与硫含量较高、氮含量较低的原料相比,硫含量较低、氮含量较高的原料较难发生加氢脱硫、加氢脱氮和残炭前身物加氢转化反应;两种典型原料的反应特性差异主要与其杂原子含量、组分组成和分子结构有关。通过对加工两类典型渣油原料的固定床渣油加氢装置的工业运转情况的比较分析,也表明硫含量较低、氮含量较高的原料较难发生加氢脱硫、加氢脱氮和残炭前身物加氢转化反应。
[Abstract]:The reaction characteristics of two kinds of typical fixed bed residue hydrogenation feedstock were investigated by the same catalyst gradation method and under the same process conditions. The results showed that the hydrodesulfurization reaction was easy to occur in the residue hydrogenation process, and the results showed that the hydrodesulfurization reaction was easy to occur in the residue hydrogenation process. However, the hydrodenitrogenation reaction and the hydrogenation conversion reaction of the carbon residue precursor are relatively difficult to occur. The hydrogenation characteristics of different types of residue feedstock are different. Compared with the feedstock with higher sulfur content and lower nitrogen content, the sulfur content is lower, and the feedstock with higher nitrogen content is more difficult to undergo hydrodesulfurization, hydrodenitrogenation and residual carbon precursor hydrogenation conversion reaction. The difference of reaction characteristics between the two typical raw materials is mainly related to their hetero-atom content, component composition and molecular structure. Through the comparison and analysis of the industrial operation of the fixed bed residue hydrotreating unit which processes two kinds of typical residue feedstock, it is also shown that the feedstock with lower sulfur content and higher nitrogen content is more difficult to produce hydrodesulfurization. Hydrodenitrogenation and hydrogenation and conversion of carbon residues.
【作者单位】：中国石化石油化工科学研究院;
【基金】：中国石油化工股份有限公司合同项目(115078)
【分类号】：TE624

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