工艺条件对含氟氯化氢催化氧化制氯气的影响
Influence of process conditions on catalytic oxidation of fluorinated hydrogen chloride to chlorine gas
于蒙 1胥亚琨 1李育桥 1郑佳 1王昊1
作者信息
- 1. 山东东岳高分子材料有限公司,山东淄博 256401
- 折叠
摘要
采用等体积浸渍法制备了耐氟铜基催化剂,在99.9％HCl+0.1％HF混合气氛下制氯气,通过正交实验考察了反应温度、HCl和O2体积比、质量空速对HCl单程转化率的影响.结果表明,在反应温度为390℃、HCl和02体积比为2∶1、质量空速为1 h-1的最佳反应条件下,氯化氢单程转化率可达92.5％;为进一步验证催化剂稳定性,运行1 500 h后HCl单程转化率稳定在91％～93％之间.通过ICP分析,催化剂中活性组分Cu元素流失率为1.175×10-5 g/h,初步估算稳定运行10 000 h后,Cu流失仅为催化剂Cu元素添加量的1.68％,说明该催化剂具有较好的活性、稳定性和耐氟能力.
Abstract
The effects of reaction temperature,volume ratio of HCl to O2 and mass space velocity on the conversion rate of HC1 were investigated by orthogonal experiment in a mixture atmosphere of 99.9％HC1+0.1％HF.The results show that under the optimum reaction conditions of 390℃,2∶1 volume ratio of HCl to O2 and 1 h-1 mass space velocity,the conversion rate of hydrogen chloride can reach 92.5％.To further verify the stability of the catalyst,the one-way conversion rate of hydrogen chloride remained stable between 91％and 93％after running for 1 500 hours.Through ICP analysis,the loss rate of the active component Cu element in the catalyst is 1.175×10-5 g/h,it is preliminarily estimated that after stable operation for 10000 hours,the loss of Cu is only 1.68％of the amount of Cu element added to the catalyst,indicating that the catalyst has good activity,stability,and fluorine resistance.
关键词
含氟氯化氢/催化氧化/耐氟铜基催化剂/氯气/正交实验Key words
fluorinated hydrogen chloride/catalytic oxidation/fluorine-resistant copper based catalyst/chlorine gas/orthogonal experiment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据