催化裂化回炼油-芳烃抽提组合工艺研究  

Study on Integrated Process of Catalytic Cracking Cycle Oil-Aromatic Extraction

作　　者：赖仕全[1] 郝庆新 李晓鸥[1] 秦永航[1] 李东胜[1] 

机构地区：[1]抚顺石油学院,辽宁抚顺113001 [2]中国石油抚顺石化分公司,辽宁抚顺113001

出　　处：《石油化工高等学校学报》2001年第4期19-21,共3页Journal of Petrochemical Universities

基　　金：中国石油天然气集团公司纵向课题 (990 195 7)

摘　　要：采用纯糠醛或现有的润滑油糠醛精制装置抽提塔塔底抽出液为溶剂对石油二厂催化裂化回炼油进行了芳烃抽提小试、中试及抽余油的催化裂化中试的系统研究。主要介绍以纯糠醛为溶剂的芳烃抽提小试实验。实验结果表明 ,若抽出油仅作为橡胶填充油 ,则以纯糠醛为溶剂抽提回炼油适宜的操作条件为 :剂油比 0 .6 (质量比 ) ,抽提塔塔底温度 40～ 5 0℃、塔顶温度 6 0℃左右 ,此时抽余油的收率为 70 %左右 ,抽余油中的饱和分含量由回炼油的 5 5 %提高到 78%左右 ,抽出油的收率为 30 %左右 ,其抽出油中芳烃加胶含量高于 90 % ,可以作为橡胶填充油。按石油二厂南催化现有的回炼比 0 .3计算 ,新鲜原料处理量可提高 10The aromatic extraction laboratory scale test and middle scale test about No. 2 refinery's catalytic cracking cycle oil were done with the pure furfural or extracted oil from the extraction tower of the present lubricant furfural refining units ,and the catalytic cracking middle scale experiment of the raffinate oil was also systematically studied. The aromatic extraction laboratory scale test was mainly introduced in this paper. The experimental result shows that when the extract oil was used as the filled oak oil and the pure furfural used as solvent, the fitting operation conditions when the cycle oil was well extracted were that the ratio of solvent/oil was 0. 6(weight), the bottom temperature of the extraction tower was 40 [similar to] 50°C, the top temperature was about 60°C. And the yield of the raffinate oil was about 70%, of which the saturated constituents were increased from 55% to 78%, and the yield of extract oil was about 30%, of which the aromatic and resin constituents were over 90%, and they can be used as filled oak oil. Calculating in accordance with cycle refining ratio 0.3 adopted by southern catalytic workshop, No. 2 refinery, the treating quantity of the fresh feedstock can be increased by 10%.

关 键 词：催化裂化 回炼油 芳烃抽提 纯糠醛 组合工艺 

分 类 号：TE624.512[石油与天然气工程—油气加工工程]