石油炼制与化工 ›› 2019, Vol. 50 ›› Issue (3): 24-28.

• 基础研究 • 上一篇    下一篇

基于预加氢的煤焦油重质馏分油供氢性能研究

胡发亭1,2,3,王光耀1,2,3,李军芳1,2,3,李伟林1,2,3   

  1. 1. 煤炭科学技术研究院有限公司煤化工分院
    2. 煤炭资源高效开采与洁净利用国家重点实验室
    3.国家能源煤炭高效利用与节能减排技术装备重点实验室
  • 收稿日期:2018-06-21 修回日期:2018-07-29 出版日期:2019-03-12 发布日期:2019-03-26
  • 通讯作者: 胡发亭 E-mail:hufating@163.com
  • 基金资助:
    煤与重油共加氢及产品加工关键技术

STUDY ON HYDROGEN SUPPLY PERFORMANCE OF PRE-HYDROTREATED COAL TAR HEAVY OIL

    

  1.  
  • Received:2018-06-21 Revised:2018-07-29 Online:2019-03-12 Published:2019-03-26
  • Supported by:
     

摘要: 对煤焦油重质馏分油进行预加氢处理,利用红外光谱、核磁共振和元素分析等方法,从分子结构角度深入探讨煤焦油重质馏分油的理化性质和供氢性能的变化规律。结果表明,通过预加氢处理,煤焦油重质馏分油的芳碳率(fa)由加氢前的0.89下降到加氢后的0.80,芳环取代度(σ)由加氢前的0.12提高到0.20,供氢指数(PDQI)由3.21 mg/g提高到4.02 mg/g;预处理后的煤焦油重质馏分油在煤油共炼中的氢耗由4.03%下降到3.74%,转化率和油产率均得到提高,产物油中的沥青质含量明显下降,油品质量有明显改善。

关键词: 煤焦油重质馏分油, 预加氢, 煤油共炼, 供氢性能

Abstract: The coal tar heavy oil was pre-hydrotreated and then characterized by means of infrared spectroscopy,nuclear magnetic resonance and elemental analysis. The physicochemical properties and the hydrogen supply ability of the pre-hydrotreated oil were investigated from the molecular structure point of view. The results showed that after the aromaticity of the hydrotreated heavy oil decreases from 0.89 of feed to 0.80, the degree of substitution of aromatic rings increases from 0.12 to 0.20 and the hydrogen supply index (PDQI) increases from 3.21 to 4.02. The hydrogen consumption of coal tar heavy oil in coal-oil co-processing from 4.03% to 3.74%,the conversion rate and the oil yield are improved,the asphaltene content in the product decreases significantly, the oil quality is greatly improved .

Key words: coal tar heavy oil, pre-hydrotreating, coal-oil co-processing, hydrogen supply performance

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