摘要
宁煤烯烃二分公司Novolen工艺聚丙烯装置运行过程中,发生了循环气冷凝器壁温超温现象。通过对超温过程中冷凝器的工况和进出口物料组分分析,结合设备构造、材质等因素进行探讨,结果表明冷凝器超温为丙烯与高浓度氢气发生加氢反应放热导致,且高浓度氢气将器壁金属还原作为催化剂提高了反应速率。通过停车置换,使用氧气使冷凝器内部活性物质失活,破坏了加氢反应条件,问题得到解决。
During the operation of the Novolen polypropylene unit of Olefin Second Branch of Ningxia Coal Industry Co.,Ltd.,the overheating of the circulating gas condenser wall occurred.By analyzing the working conditions of the condenser and the composition of the inlet and outlet materials during the overheating process,combined with such factors as equipment structure and material,it was concluded that the exothermic reaction of propylene with high-concentration hydrogen caused the condenser to overheat.High-concentration hydrogen reduced the wall metal as a catalyst to increase the reaction rate.By stopping the reaction and using oxygen to oxidize the inside of the condenser,the active material was deactivated and the hydrogenation reaction conditions were destroyed,so the problem was solved.
作者
杨加义
李瑞龙
田广华
唐建兵
吴荣炜
王俊杰
李建伟
Yang Jiayi;Li Ruilong;Tian Guanghua;Tang Jianbing;Wu Rongwei;Wang Junjie;Li Jianwei(Olefin Second Branch,Ningxia Coal Industry Co.,Ltd.,China Energy Group,Yinchuan Ningxia 750411,China;Coal Chemical Industry Technology Research Institute,Ningxia Coal Industry Co.,Ltd.,China Energy Group,Yinchuan Ningxia 750411,China)
出处
《煤化工》
CAS
2020年第4期73-75,共3页
Coal Chemical Industry
关键词
Novolen工艺
聚丙烯
循环气冷凝器
加氢反应
超温
Novolen process
polypropylene
circulating gas condenser
hydrogenation reaction
overheating temperature
