炼油技术与工程 ›› 2021, Vol. 51 ›› Issue (8): 9-12.

• 加工工艺 • 上一篇    下一篇

劣化环丁砜再生技术工业应用总结

董智, 黄晓飞   

  1. 中国石油大连石化公司,辽宁省大连市 116023
  • 修回日期:2021-05-18 出版日期:2021-08-15 发布日期:2021-11-15
  • 作者简介:董智,工程师,主要负责连续重整工艺管理工作。联系电话:0411-86774935,E-mail:dongz_dl@petrochina.com.cn。

Summary of industrial application of regeneration technology of deteriorated sulfolane

Dong Zhi, Huang Xiaofei   

  1. PetroChina Dalian Petrochemical Company, Dalian, Liaoning 116023
  • Revised:2021-05-18 Online:2021-08-15 Published:2021-11-15

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摘要： 介绍了劣化环丁砜再生技术在芳烃抽提装置的应用,该技术成功解决了环丁砜溶剂pH值低、氯离子含量高、机械杂质堵塞设备等问题。投用后,溶剂pH值稳定在7.5以上,氯离子质量浓度从64 mg/L降至10 mg/L,且溶剂中的机械杂质能够被过滤掉。在该单元运行过程中,发现单乙醇胺与劣化环丁砜再生单元不可同时使用,总结了树脂转型过程中的技巧以及注意事项,对指导生产有重要意义。

关键词: 劣化环丁砜, 再生, 芳烃抽提装置, 树脂, pH值, 氯离子, 杂质, 单乙醇胺

Abstract: It introduces the application of the regeneration technology for deteriorated sulfolane in aromatics extraction unit. The technology has successfully solved the problems of low pH value of sulfoxide solvent, high chloride content and mechanical impurity plugging equipment. With the help of the technology, the pH value of the solvent is above 7.5, the concentration of chloridion down from 64 mg/L to 10 mg/L, and the mechanical impurities in sulfolane is filtered. During the operation of the unit, it found this unit can't be used with monoethanolamine at the same time. The skills and precautions in the resin transformation process are summarized, which is of great significance to guide the production.

Key words: deteriorated sulfolane, reactivation, aromatics extraction, resin, pH value, chloridion, impurity, monoethanolamine