摘要
PO/SM装置已经逐渐成为国内生产PO和SM的主流装置。乙苯液相过氧化反应生成乙苯过氧化氢(EBHP),是乙苯共氧化法生产环氧丙烷(PO)并联产苯乙烯(SM)的第一步,反应的选择性关系到PO的产量和下游副产物的回收。通过实际操作的角度,从氢氧化钠的注入浓度、注入点以及注入量等方面,探讨了氢氧化钠对乙苯液相过氧化反应的影响。
PO/SM devices have gradually become the mainstream devices for domestic production of PO and SM.The liquid phase peroxidation of ethylbenzene to generate ethylbenzene hydroperoxide(EBHP)is the first step in the co-oxidation of ethylbenzene to produce propylene oxide(PO)and the production of styrene(SM).The selectivity of the reaction is related to the yield of PO and recovery of downstream by-products.From the perspective of practical operation,the influence of sodium hydroxide on the liquid phase peroxidation of ethylbenzene is discussed through the injection concentration,injection position and injection amount of sodium hydroxide.
作者
庄东霖
Zhuang Donglin(Sinochem Quanzhou Petrochemical Co.,Ltd.,Quanzhou 362000,China)
出处
《云南化工》
CAS
2023年第1期44-46,49,共4页
Yunnan Chemical Technology
关键词
乙苯过氧化氢
氢氧化钠
选择性
金属离子
酸性物质
ethylbenzene hydroperoxide
sodium hydroxide
selectivity
metal ions
acidic substances
