碳二前加氢催化剂PEC-21长周期运行性能分析  

Analysis on long-term operation performance of PEC-21 catalyst for front-end hydrogenation of acetylene

作　　者：梁玉龙 刘轶凡 张展[3] 车春霞 温翯 张峰 苟尕莲 韩伟 LIANG Yu-long;LIU Yi-fan;ZHANG Zhan;CHE Chun-xia;WEN He;ZHANG Feng;GOU Ga-lian;HAN Wei(Lanzhou Petrochemical Research Center,PetroChina Petrochemical Research Institute,Lanzhou 730060,China;No.1 Chemical Plant,PetroChina Daqing Petrochemical Company,Daqing 163714,China;Ethylene Plant,PetroChina Lanzhou Petroleum Company,Lanzhou 730060,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,甘肃兰州730060 [2]中国石油大庆石化分公司化工一厂,黑龙江大庆163714 [3]中国石油兰州石化公司乙烯厂,甘肃兰州730060

出　　处：《现代化工》2020年第10期216-220,共5页Modern Chemical Industry

基　　金：中国石油科技管理部项目(2018B-2505)。

摘　　要：考察了中石油自主开发的碳二前加氢催化剂PEC-21在大庆石化270 kt装置一段反应器35个月的运行情况,并与同周期进口催化剂运行性能进行了对比。工业应用结果表明,PEC-21催化剂35个月平均乙炔转化率56.7%,乙烯选择性94.4%,提温幅度仅19℃,比同周期进口剂低7.5℃。在CO含量200~1200μL/L,进料量63.6~78.5 t/h的波动工况下显示出良好的长周期运行稳定性。The catalyst for front-end hydrogenation of acetylene independently developed by PetroChina Company Limited has been operated continuously for 35 months in the 270 kt/a plant of PetroChina Daqing Petrochemical Company,which is compared with the performance of imported catalysts in the same cycle.Industrial application results show that PEC-21 catalyst has given an average acetylene conversion rate of 56.7%in 35 months,an ethylene selectivity of 94.4%,and a temperature increase of only 19℃,which is 7.5℃lower than that of the imported catalyst in the same cycle.Under the fluctuating operating conditions with a CO content of 200-1200μL·L^-1 and a feeding speed of 63.6-78.5 t·h^-1,it shows good long-term running stability.

关 键 词：碳二前加氢 加氢催化剂 工业试验 乙炔选择加氢 

分 类 号：TQ221.2[化学工程—有机化工]