氯化氢催化氧化制氯气在无梯度反应器上的反应行为考察  

Reaction behavior for catalytic oxidation of hydrogen chloride to chlorine on a non-gradient reactor

作　　者：富岱奇 赵基钢[1] 程丽华[2] 宋楠[1] 袁向前[1] FU Dai-qi;ZHAO Ji-gang;CHENG Li-hua;SONG Nan;YUAN Xiang-qian(International Joint Research Center for Green Energy and Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China;Guangdong Provincial Engineering Technology Research Center of Petrochemical Corrosion and Safety,Guangdong University of Petrochemical Technology,Maoming 525000,China)

机构地区：[1]绿色能源化工国际联合研究中心华东理工大学,上海200237 [2]广东省石油化工腐蚀与安全工程技术研究中心广东石油化工学院,广东茂名525000

出　　处：《应用化工》2020年第2期389-393,398,共6页Applied Chemical Industry

基　　金：上海市青年科技启明星计划资助(17QC1401400);广东省石油化工腐蚀与安全工程技术研究中心开放基金资助(201810A01)。

摘　　要：针对氯化氢催化氧化制氯气工艺,使用以氧化铝为载体的铜基复合催化剂,在无梯度反应器上进行反应行为考察。在常压条件下考察反应温度、进料摩尔比、HCl空速等工艺条件对HCl转化率和HCl反应速率的影响。结果表明,在考察范围内,HCl转化率和反应速率均随着反应温度T的升高,或反应气体摩尔配比nHCl/nO2的降低而升高;随着反应空速FHCl0/W的降低,HCl转化率先升高后降低,在HCl空速为5 h-1时达到最大,而HCl反应速率逐渐降低。优化工艺条件为:反应温度400℃,原料气摩尔比nHCl∶nO2=4∶4,HCl空速FHCl0/W=5 h-1时,此时HCl转化率接近60%,且HCl反应速率在0.5×10-3 mol/(g·min)左右,反应效率较高。但由于在考察范围内无法达到化学平衡状态,达到化学平衡后的反应行为仍需进一步考察。Reaction behavior of HCl catalytic oxidation occurred on copper-based composite catalyst supported by aluminum oxide was studied in a non-gradient reactor.Influence of the reaction temperature the molar ratio of feed,HCl airspeed on HCl conversion and reaction rate was studied at atmospheric pressure.The results showed that HCl conversion and reaction rate both increased with the increase of T,or the decrease of nHCl/nO2.With the decrease of W/FHCl0,HCl reaction rate decreased,but HCl conversion showed a downward trend after the first rise,W/FHCl0=5 h-1 highest.Under the optimum condition:T=400 ℃,nHCl∶nO2=4∶4,FHCl0/W=5 h-1,HCl conversion is near to approaching 60%,HCl reaction rate is about 0.5×10-3mol/(g·min),reaction maintains high efficiency.However,since chemical equilibrium cannot be reached under the conditions which have been investigated,the reaction behavior after reaching chemical equilibrium still needs further investigation.

关 键 词：氯化氢催化氧化 铜基复合催化剂 无梯度反应器 反应行为 化学平衡 

分 类 号：TQ114[化学工程—无机化工]