首页|工艺条件对含氟氯化氢催化氧化制氯气的影响

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

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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.
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.

fluorinated hydrogen chloridecatalytic oxidationfluorine-resistant copper based catalystchlorine gasorthogonal experiment

于蒙、胥亚琨、李育桥、郑佳、王昊

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山东东岳高分子材料有限公司,山东淄博 256401

含氟氯化氢 催化氧化 耐氟铜基催化剂 氯气 正交实验

2024

现代化工
中国化工信息中心

现代化工

CSTPCD北大核心
影响因子:0.553
ISSN:0253-4320
年,卷(期):2024.44(z2)