石油炼制与化工 ›› 2014, Vol. 45 ›› Issue (4): 64-67.

• 加工工艺 • 上一篇    下一篇

选择性加氢-萃取组合工艺制环保芳烃填充油

谷云格,杨基和,邱海辉,陈玉龙   

  1. 常州大学江苏省精细石油化工重点实验室
  • 收稿日期:2013-09-25 修回日期:2013-11-26 出版日期:2014-04-12 发布日期:2014-03-24
  • 通讯作者: 杨基和 E-mail:yangjihe2873@126.com

PREPARATION OF ENVIRONMENTAL-FRIENDLY AROMATIC OIL BY HYDROGENATION-EXTRACTION COMBINATION PROCESS

  • Received:2013-09-25 Revised:2013-11-26 Online:2014-04-12 Published:2014-03-24

摘要: 以FCC油浆抽提油为原料,采用选择加氢-萃取组合工艺制环保芳烃油。研究结果表明:选择性加氢最佳工艺条件为反应温度300 ℃、氢分压6.0 MPa、反应时间6 h;在此条件下进行选择性加氢反应,可将加氢原料油中多环芳烃(简称PCA)的质量分数由56.28%降低至17.22%,二次加氢后,PCA质量分数可降低至7.86%,液体收率高达94.10%。为进一步脱除PCA,在此基础上采用萃取工艺,在萃取温度50 ℃、剂油质量比2:1、复合溶剂(A:B)质量比1:1、萃取时间15 min的条件下进行萃取,二次加氢产品中PCA的质量分数降低至2.40%,萃取收率为85.30%,液体总收率为80.27%。产品质量得到改善,油品性质符合环保芳烃油的VIVATEC500指标要求。

Abstract: Using the extracted FCC slurry oil as raw material, the environmental-friendly aromatic oil was produced by hydrogenation-extraction combination process. The selective hydrogenation of the slurry feed was conducted under the optimal conditions: 300 ℃, hydrogen pressure 6.0 MPa, reaction time 6 h in an autoclave, then the product was hydrotreated again under the same conditions. The mass fraction of PCA is decreased from 56.28% in raw oil to 7.86% in hydrotreated product and the liquid yield is 94.10%. Further reduction of PCA is completed by the extraction process. Under the conditions of the extraction temperature 50 ℃, extractant to oil ratio 2:1, complex solvent (A: B) ratio 1:1, extraction time 15 min, the content of PCA is decreased to 2.40% with the extracted liquid yield 85.30%. The quality of the product is improved greatly and close to the VIVATEC500.