化工进展

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中温煤焦油重馏分加氢裂化的工艺条件优化

李 斌,李 冬,李稳宏,崔楼伟,雷雨辰,王军策,刘存菊,李 宏   

  1. 西北大学化工学院,陕西 西安 710069
  • 出版日期:2012-05-05 发布日期:2012-05-05

Optimization for the hydrocracking process of the heavy fraction of medium temperature coal tar

LI Bin, LI Dong,LI Wenhong,CUI Louwei,LEI Yuchen,WANG Junce,LIU Cunju,LI Hong   

  1. School of Chemical Engineering,Northwest University,Xi’an 710069,Shaanxi,China
  • Online:2012-05-05 Published:2012-05-05

摘要: 在小型单管固定床加氢装置上,研究中温煤焦油重馏分加氢裂化工艺过程各因素对裂化效果的影响。通过单因素和响应面法对加氢裂化率与工艺条件进行分析、拟合及优化求解得中温煤焦油重馏分加氢裂化的优化条件为:反应压力13.4 MPa,裂化温度682 K,液体体积空速0.30 h-1,氢油体积比1895∶1,煤焦油加氢裂化率为77%~78%。

关键词: 煤焦油, 重馏分加氢, 加氢裂化, 响应面优化

Abstract: Analysis and optimization of hydrocracking process conditions for the heavy fraction of medium temperature coal tar in a fixed-bed hydrogenation unit was investigated using single-factor tests and response surface methodology. The optimized process condition was found as:reaction pressure of 13.4 MPa,reaction temperature of 682 K,hydrogen to oil volume ratio of 1895?1 and liquid hourly space velocity of 0.30 h?1,under which the conversion rate of the heavy fraction of coal tar hydrogenation was 77%—78%.

Key words: medium temperature coal tar, heavy fractions hydrogenation, hydrocracking, response surface optimization

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