石油炼制与化工 ›› 2019, Vol. 50 ›› Issue (12): 21-26.

• 加工工艺 • 上一篇    下一篇

柴油加氢改质装置柴油雾浊原因分析及解决方法

辛丁业,冯忠伟,梁顺,安晓杰   

  1.  中石油克拉玛依石化有限责任公司
  • 收稿日期:2019-05-16 修回日期:2019-07-04 出版日期:2019-12-12 发布日期:2019-12-24
  • 通讯作者: 辛丁业 E-mail:645341517@qq.com
  • 基金资助:
     

CAUSE ANALYSIS OF TURBIDITY IN DIESEL FROM HYDROUPGRADING UNIT AND COUNTERMEASURES

Xin Dingye,Feng Zhongwei,Liang Shun,An Xiaojie   

  1.  
  • Received:2019-05-16 Revised:2019-07-04 Online:2019-12-12 Published:2019-12-24
  • Contact: Xin Dingye E-mail:645341517@qq.com
  • Supported by:
     

摘要: 某石化公司1.5 Mt/a柴油加氢改质装置由于柴油含水的原因,严重制约着装置加工负荷的提升及成品柴油的出厂。为解决该问题,详细分析了导致产品柴油出现雾浊现象的原因,并设计增加了工业盐脱水及高效聚结脱水工艺流程。结果表明;经工业盐脱水工艺处理后柴油水质量分数降至58~311 μg/g,经高效聚结器脱水工艺处理后柴油水质量分数降至96.5~109 μg/g,两种脱水工艺的微量水脱除率分别达到了78 %和93 %以上,均达到了良好的脱水效果,聚结脱水工艺效果更好。针对柴油生产的季节特点,两种工艺组合使用,可保证装置产品柴油水含量及外观达标。

关键词: 加氢改质, 柴油, 雾浊, 脱水, 聚结器

Abstract: Due to the presence of water in diesel from the 1.5 Mt/a diesel hydroupgrading unit of a petrochemical company, the increase of process load and the sales of diesel fuel product are seriously restricted. In order to solve this problem, the cause of turbidityin diesel was analyzed in detail, and the industrial salt dehydration system and high efficiency coalescence dehydration system were designed and installed. The application results showed that the water mass fraction in diesel was reduced to 58—311 μg/g after the industrial salt dehydration process and 96.5—109 μg/g after the high-efficiency coalescer dehydration process, with the water removal rates higher than 78% and 93%, respectively. Both processes showed good dehydration effect for diesel fraction, in which the coalescer dehydration process was better. According to the seasonal characteristics of diesel production, the combination of the two processes can be used to ensure the water content and appearance of diesel product.

Key words: hydroupgrading, diesel, fog, dehydration, coalescer

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