劣质焦化汽油加氢生产乙烯裂解料研究  

Study on Hydrogenation of Low-Quality Coking Gasoline to Produce Ethylene Cracking Feedstock

作　　者：张景成 李子涵 杨霞霞 穆展鹏 朱金剑 宋国良 董科军 常立国 ZHANG Jingcheng;LI Zihan;YANG Xiaxia;MU Zhanpeng;ZHU Jinjian;SONG Guoliang;DONG Kejun;CHANG Liguo(CNOOC Tianjin Chemical Research and Design Institute Co.,Ltd.,Tianjin 300131,China;China University of Petroleum,Beijing 102249,China;CNOOC Zhongjie Petrochemical Co.,Ltd.,Cangzhou Hebei 316015,China)

机构地区：[1]中海油天津化工研究设计院有限公司,天津300131 [2]中国石油大学(北京),北京102249 [3]中海石油中捷石化有限公司,河北沧州061100

出　　处：《当代化工》2024年第11期2598-2602,共5页Contemporary Chemical Industry

基　　金：国家重点研发计划项目(项目编号:2022YFA1503400)。

摘　　要：针对劣质焦化汽油加氢精制生产乙烯裂解料的需求,采用新型凝胶直接成型法制备TH-1加氢催化剂,并通过BET、XRD、H2-TPR和HRTEM等手段进行详细表征。采用一段串联工艺,在100 mL固定床连续加氢装置上进行催化剂性能评价。结果表明,TH-1加氢催化剂加氢脱硫和烯烃饱和性能良好,适宜的工艺条件为:反应压力2.0 MPa,反应空速2.5~3.0 h^(-1),预加氢反应温度150~160℃,预加氢氢油比50,加氢精制反应温度270℃,加氢精制氢油比400。加氢精制汽油产品的硫质量分数降低至65μg·g^(-1),烯烃体积分数降低至0.8%,满足乙烯裂解原料的要求。In order to meet the demand of producing ethylene cracking feedstock by hydrofining low-quality coking gasoline,TH-1 hydrogenation catalyst was prepared by a novel direct gel-extruding method and characterized in detail by BET,XRD,H2-TPR and HRTEM.Compared catalyst TH-1 with reference agent A,the performance evaluation was conducted on a 100 mL fixed bed continuous hydrogenation unit using a series process.The results showed that the TH-1 hydrogenation catalyst had better hydrodesulfurization and olefin saturation performance.The suitable process conditions were as follows:reaction pressure 2.0 MPa,reaction space velocity 2.5~3.0 h^(-1),pre-hydrogenation reaction temperature 150~160℃and hydrogen oil ratio 50,hydrogenation reaction temperature 270℃and hydrogen oil ratio 400.The sulfur mass fraction was reduced to 65μg·g^(-1)and the olefin volume fraction was reduced to 0.8%,which met the requirement of ethylene cracking feedstock.

关 键 词：焦化汽油 加氢精制 乙烯裂解料 凝胶直接成型 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]