银催化剂在环氧乙烷/乙二醇装置含氧尾气处理中的应用  

Application of silver catalysts in the treatment of oxygen-containing tail gas in ethylene oxide/ethylene glycol unit

作　　者：张燕[1] 孙向华 李金兵[2] 蒋赛 Zhang Yan;Sun Xianghua;Li Jinbing;Jiang Sai(Chemical Department,SINOPEC,Beijing 100728,China;Sinopec Beijing Research Institute of Chemical Industry Yanshan Branch,Beijing 102500,China)

机构地区：[1]中国石油化工股份有限公司化工事业部,北京100728 [2]中国石化北京化工研究院燕山分院,北京102500

出　　处：《石油化工》2021年第4期350-354,共5页Petrochemical Technology

摘　　要：以α-Al2O3为载体、金属银为活性组分,采用浸渍法制备了YSE-01型银催化剂,将其用于处理环氧乙烷/乙二醇装置的含氧尾气,并与商用E-02型贵金属催化剂进行了对比。实验结果表明,采用高活性YSE-01型银催化剂时,氧气单程转化率最高可达89.2%,可以将环氧乙烷/乙二醇装置中典型工况下含氧尾气中的氧含量降至2%(φ)以下,符合工艺设计要求;E-02型贵金属催化剂具有更低的起活温度,如果和银催化剂串联使用,可以有效分解尾气中的环氧乙烷,对银催化剂进行很好的补充。YSE-01 silver catalyst was prepared by impregnation method withα-Al2O3 as the support and silver as the active component.The catalyst was applied to the oxygen-containing tail gas treatment process of ethylene oxide/ethylene glycol unit and comparison was conducted with the commercial noble metal catalyst E-02.The results show that the single-trip oxygen conversion of the highly active YSE-01 silver catalyst can reach up to 89.2%,and the oxygen content in the oxygen-containing tail gas of ethylene oxide/ethylene glycol unit can be reduced to less than 2%(φ)under typical working conditions,which meets the requirements of the process design.Since the commercial E-02 catalyst has lower starting temperature,if it is used combining with silver catalyst,the ethylene oxide in the tail gas can be effectively decomposed,which can be also a good supplement to the silver catalyst.

关 键 词：环氧乙烷/乙二醇装置 乙烯环氧化 含氧尾气 催化燃烧 银催化剂 

分 类 号：TQ032.4[化学工程]