灵活溶剂脱沥青(RFSD)技术的大型化工业应用

LARGE-SCALE COMMERCIAL APPLICATION OF FLEXIBLE SOLVENT DEASPHALTING(RFSD)TECHNOLOGY

中石化石油化工科学研究院有限公司通过对渣油组成、结构及液-液萃取理论的深入认识,针对重油在不同溶剂体系下溶解和传质特性,开发了灵活溶剂脱沥青技术(RFSD)技术。某炼油厂1.6 Mt a溶剂脱沥青装置运行数据表明:以残炭为13.48%的渣油为原料,以丁烷为溶剂,采用两段工艺,可获得收率为35.58%、残炭为2.85%、金属(Ni+V)质量分数为2.42μg g的轻脱沥青油,此轻脱沥青油可作为催化裂解和BS光亮油的生产原料,满足后续装置对进料的需求,装置运行能耗为943.0 MJ t。

Based on the deep understanding of the composition,structure and liquid-liquid extraction theory of residue,SINOPEC Research Institute of Petroluem Processing Co.,Ltd.(RIPP)has studied the dissolution and mass transfer characteristics of heavy oil in different solvent systems,the RIPP Flexible Solvent Deasphalting(RFSD)technology was developed.The industrial operation data of a 1.6 Mt a solvent deasphalting unit in a refinery showed that a two-stage process was adopted with vacuum resid with carbon residue of 13.48%as raw material and butane as solvent,and a light deasphalted oil(LDAO)with a yield of 35.58%,carbon residue value of 2.85%and mass fiaction of metal(Ni+V)of 2.42μg g could be obtained.The LDAO could be used as raw material for deep catalytic cracking and BS bright oil base oil.The operation energy consumption of the unit was 943.0 MJ t.