裂解C_9常压芳构化的研究  

Study of Cracking C_9 Aromatization Under Normal Pressure

作　　者：张学岭[1] 贡宝仁[2] 吴卫忠[1] 裘兆蓉[1] 

机构地区：[1]江苏工业学院化学化工学院江苏省精细石油化工重点实验室,江苏常州213016 [2]扬子石油化工股份有限公司烯烃厂,江苏南京210048

出　　处：《石油化工》2010年第5期497-500,共4页Petrochemical Technology

摘　　要：以裂解C_9为原料、改性ZSM-5分子筛为催化剂,在40mL固定床催化反应装置上进行了裂解C_9芳构化的探索实验,实验结果表明,反应温度在450～500℃内,苯、甲苯、二甲苯(三者简称为BTX)的含量迅速增加、茚和茚满的总含量快速下降。在200mL固定床催化反应装置上进行了芳构化放大实验,实验结果发现,在改性的ZSM-5分子筛用量115.3g、常压、反应温度500℃、WHSV=0.30h^(-1)的条件下,得到了无色透明的可作芳烃原料的液相产物,液相产物中BTX的质量分数大于71%、茚和茚满的总质量分数小于2%,液体收率的平均值为75%。改性ZSM-5分子筛催化剂可重复使用。Aromatization of cracking C9 on a modified ZSM-5 molecular sieve catalyst was carried out in a 40 mL fixed-bed reactor. The experimental result indicated that in the reaction temperature range of 450℃ to 500 ℃, the contents of benzene, toluene and xylene（BTX） increased quickly and the total content of both indene and indane decreased rapidly. The scale-up aromatization test was conducted in a 200 mL fixed-bed reactor. The colorless and transparent liquid products could be obtained, which could be used as aromatic raw materials. Under the optimal reaction conditions of modified ZSM-5 molecular sieve catalyst 115.3 g, atmospheric pressure, reaction temperature 500 ℃ and mass space velocity 0.30 h^-1, BTX mass fraction and total mass fraction of both indene and indane in the liquid products were more than 71% and less than 2%, respectively, and yield of the liquid products was 75 %. The modified ZSM-5 molecular sieve catalyst could be reused.

关 键 词：裂解C9 苯 甲苯 二甲苯 芳构化 ZSM-5分子筛催化剂 茚 茚满 

分 类 号：TE624.48[石油与天然气工程—油气加工工程]