溶剂脱沥青技术浅析

Analysis of Solvent Deasphalting Technology

详细介绍了国内外现有的溶剂脱沥青工艺,并将这几种工艺进行了比较。简单阐述了国内溶剂脱沥青技术在能耗、加工工艺、脱沥青溶剂等方面与国外先进技术存在的差别。最后介绍了青岛中心戊烷脱沥青工艺,该工艺通过对汽提塔底部增加加热措施、优化临界系统压控方案、调整汽提塔塔盘、沥青系统改用导热油伴热等一系列技术改造,首次实现戊烷脱沥青工业化。

The technique of solvent deasphalting between domestic and foreign units was described and compared. The gaps between these domestic and foreign techniques on energy consumption, processing technique, deasphalting solvent are demonstrated. The technique of pentan deasphalting in Qingdao was described, a series of technical innovations was carried out on the pentane deasphalting unit, including optimization of supercritical system pressure control, tray modification of stripping tower, adding heating system at the bottom of stripping tower, using heat--conducting oil to heat the asphalt system and so on. The first pentan deasplhating industrial started up successfully.