石油炼制与化工 ›› 2017, Vol. 48 ›› Issue (11): 64-67.

• 加工工艺 • 上一篇    下一篇

作为焦化原料的风城超稠油电脱盐、脱钙工业试验

代敏,马忠庭,李欣,韩云   

  1. 中国石油克拉玛依石化有限责任公司炼油化工研究院
  • 收稿日期:2017-04-28 修回日期:2017-05-17 出版日期:2017-11-12 发布日期:2017-10-25
  • 通讯作者: 代敏 E-mail:daiminksh@petrochina.com.cn
  • 基金资助:
     

INDUSTRIAL TEST OF DESALTING AND DECALCIFICATION OF FENGCHENG SUPER HEAVY OIL FOR DELAYED COKING

  1.  
  • Received:2017-04-28 Revised:2017-05-17 Online:2017-11-12 Published:2017-10-25
  • Supported by:
     

摘要: 针对风城超稠油黏度大、密度大的特点,在1.50 Mt/a延迟焦化装置采用稀释降黏的加工工艺,同时使用KR-1脱钙剂对风城超稠油进行脱钙工业试验。结果表明:稀释油掺入量为20%时,风城超稠油100 ℃运动黏度从350 mm2/s降低到60.03 mm2/s,同时脱后原料油含水、含盐量均明显下降,大大缓解了电脱盐装置脱盐、脱水效果差的问题;脱前原油钙质量分数为359 μg/g,经适度脱钙,原油中钙脱除量为100~180 μg/g,脱钙率为30%~40%;脱钙试验期间,电脱盐一级、二级、三级电流分别在150~180,140~180,160~210 A,电脱盐电流整体波动较小;脱钙工业试验期间的焦炭灰分基本在1.2%以下,最低可达0.7%。

关键词: 风城超稠油, 脱钙, 电脱盐, 焦炭, 灰分

Abstract: The Fengcheng super heavy oil with high viscosity and density was processed by diluting and reducing viscosity in 1.5Mt/a delayed coking unit. At the same time, the decalcification industrial test for Fengcheng super heavy oil was conducted by using KR-1 decalcifying agent. The results showed that the viscosity of the heavy oil is reduced to 60.03mm2/s when adding 20% dilute oil, while the contents of water and salt are decreased significantly. The calcium content is reduced from 359μg/g in feed to about 125-275μg/g in product under the moderate decalcification conditions. The current of each stage of the 3 stage desalination device is 150~180, 140~180 and 160~210A, respectively, indicating a small overall fluctuation of current of the unit. The coke ash is below 1.2% with a minimum of 0.7% during the industrial test.

Key words: Fengcheng super heavy oil, decalcification, electric desalting, coke, ash

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