石油炼制与化工 ›› 2018, Vol. 49 ›› Issue (3): 75-79.

• 加工工艺 • 上一篇    下一篇

加氢后回炼油作为焦化供氢剂的效果考察

牛毓1,王伟1,王兴1,舒畅2,王红1   

  1. 1. 中海油炼油化工科学研究院
    2. 中海油天津化工研究设计院有限公司
  • 收稿日期:2017-08-30 修回日期:2017-09-20 出版日期:2018-03-12 发布日期:2018-03-20
  • 通讯作者: 牛毓 E-mail:white_snow1212@163.com
  • 基金资助:
     

INVESTIGATION OF HYDRO-TREATED FCC RECYCLE OIL AS HYDROGEN DONOR FOR COKING REACTION

  1.  
  • Received:2017-08-30 Revised:2017-09-20 Online:2018-03-12 Published:2018-03-20
  • Supported by:
     

摘要: 对催化裂化回炼油三段窄馏分的供氢能力进行测定,选取供氢能力最强的一段进行加氢处理,以加氢后的催化裂化回炼油窄馏分为焦化供氢剂,通过中试试验考察其供氢效果。结果表明:三段窄馏分中,小于400 ℃馏分供氢能力最强;加氢处理能够进一步提高其供氢能力,以加氢后回炼油小于400 ℃馏分作为供氢剂能够使液体收率提高1.32百分点,焦炭收率降低2.45百分点。

关键词: 焦化, 供氢剂, 催化裂化, 回炼油, 窄馏分, 加氢处理, 供氢能力

Abstract: The hydrogen-donating indexes of the three narrow fractions of FCC recycle oil were measured. Among these fractions, the one which has the highest hydrogen-donating index was chosen to be used as hydrogen donor after being hydro-treated. The hydrogen-donating effect of the hydro-treated fraction was investigated in pilot tests. The results showed that the fraction (IBP-400℃) has the best hydrogen-donating capacity among the three narrow fractions of FCC recycle oil, and the hydrogen-donating capacity can be further improved by hydrotreatment. When the fraction (IBP-400 ℃) hydrotreated was used as hydrogen donor, the liquid yield can increase by 1.32% and coke yield can decrease by 2.45%.

Key words: coking, hydrogen donor, catalytic cracking, recycle oil, narrow fraction, hydrotreatment, hydrogen-donating capacity

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