PEC-21催化剂在兰州石化应用情况分析  

Application status analysis of PEC-21 catalyst in Lanzhou Petrochemical Company

作　　者：梁玉龙 张雄飞[2] 张展[2] 付雯洁 吴万红[2] 左小来 Liang Yulong;Zhang Xiongfei;Zhang Zhan;Fu Wenjie;Wu Wanhong;Zuo Xiaolai(Lanzhou Petrochemical Research Center,Petrochemical Research Institute,PetroChina,Lanzhou,Gansu,China;Olefin Plant of Lanzhou Petrochemical Company,Lanzhou,Gansu,China)

机构地区：[1]中国石油石油化工研究院兰州化工研究中心 [2]中国石油兰州石化公司乙烯厂

出　　处：《石油与天然气化工》2021年第2期23-29,共7页Chemical engineering of oil & gas

基　　金：中国石油科技管理部项目“乙烯裂解碳二前加氢催化剂研究及放大试验”(2018B-2505)。

摘　　要：考察了中国石油自主研发的PEC-21碳二前加氢催化剂在兰州石化460 kt/a乙烯装置碳二加氢一段反应器的运行情况。并针对兰州石化裂解物料复杂、物料中C 4’s含量高、空速波动等因素对催化剂性能的影响进行了分析。工业应用结果表明,PEC-21催化剂具有良好的空速适应性和C 4’s适应性,完全可以满足兰州石化的工况需求,连续运行11个月,乙炔平均转化率52.3%,乙烯选择性90.4%,MAPD转化率12.9%,丙烯选择性95.2%。运行1年,温度从61~63℃升至68.8℃,提温6.6℃左右。催化剂性能远远优于同周期进口催化剂,能满足装置稳定运行的要求。The front-end hydrogenation of acetylene catalyst PEC-21 independently developed by PetroChina has been operated in the 460×10^(3) t/a unit of the Lanzhou Petrochemical Plant for 11 months.The effects of complex cracking materials,high C 4's content and fluctuations in space velocity on the performance of the catalyst were analyzed.Industrial application results showed that PEC-21 catalyst had good space velocity adaptability and C 4's adaptability,and could fully meet the operation conditions of the industrial installation.The acetylene average conversion rate,ethylene selectivity,MAPD conversion rate,and propylene selectivity reached 52.3%,90.4%,12.9%and 95.2%respectively after it had been operating continuously for 11 months.And for one year of operation,the temperature increased from 61-63℃to 68.8℃,with the temperature rising of about 6.6℃.The performance of the catalyst was much better than that of the imported catalyst in the same period and could meet the requirements of stable operation of the unit.

关 键 词：碳二前加氢 加氢催化剂 工业试验 乙炔选择性加氢 

分 类 号：TQ426[化学工程] TQ221.211