乙烯裂解燃料油组成及焦化行为研究  

Research of Composition and Coking Behavior of Ethylene Cracking Tar

作　　者：张云桐 岳琳[1] 王嗣钰 陈文艺[1] 王吉林[1] 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001

出　　处：《石油化工高等学校学报》2015年第4期22-26,共5页Journal of Petrochemical Universities

基　　金：2014年地方高校国家级大学生创新创业训练计划项目(201410148042);中石油抚顺石化分公司科技计划项目(FSSH13B517)

摘　　要：对乙烯裂解燃料油进行了基本性质和四组分分析,并采用n-d-M法进行了结构组成分析,结果表明,乙烯裂解燃料油中芳烃、胶质和沥青质含量较高。同时,在焦化中试装置上,考察了常压、500℃条件下乙烯裂解燃料油的焦化产物分布,以及在混合进料中掺炼比对产物分布和性质的影响。结果表明,随着乙烯裂解燃料油掺炼比的增加,液体产物中汽油和蜡油馏分收率减少,而柴油馏分和焦炭收率增加。与工业生产装置相比,在乙烯裂解燃料油掺炼比为20%时,所得汽油馏分密度变化不大,硫含量和实际胶质含量略有增加;中间馏分（200~350℃）的初馏点与干点变化不大,但密度有所增大,实际胶质含量下降;石油焦中的挥发分和灰分含量增加,水分和硫含量明显下降。说明掺炼20%乙烯裂解燃料油,对焦化所得产物的性质影响不大。The property and composition of ethylene cracking tar were investigated by four component analyses and the method of n-d-M. The results were shown that amount of the aromatic hydrocarbon, colloid and asphaltene was higher in the ethylene cracking tar. On the other hand, the delayed coke simulation test was carried on the self-made apparatus based on the ethylene cracking tar as materials or doping different ratio of the ethylene cracking tar into the coking materials as material under the conditions was that the 500℃ and normal atmosphere. The results showed that the fraction of gasoline and wax oil was decreased, but the fraction of diesel oil and coke was increased under the doping ratio of ethylene cracking tar in coke material was increased. Compared with the industrial production device, under the doping ratio of ethylene cracking tar was 20 %, the density of gasoline was nearly not changed, the fraction of sulfur and actual colloid were increased slightly, the initial boiling point and dry point of the middle distillate （200~ 350℃） was nearly not changed, however the density of the middle distillate （200~350 ℃） was increased, but the actual colloid was decreased. As for the coke, the fraction of volatile and ash was increased, but the fraction of water and sulfur was decreased apparent. The result mentioned above showed that the doping ratio of ethylene cracking tar was 20 % will not affect apparently the production of the delayed coking.

关 键 词：乙烯裂解燃料油 组成 焦化中试 掺炼比 

分 类 号：TE62[石油与天然气工程—油气加工工程]