石油化工2024，Vol.53Issue(5)：643-648,6.DOI:10.3969/j.issn.1000-8144.2024.05.003
工业萘氧化制苯酐催化剂性能研究
Performance of catalysts for preparation phthalic anhydride by technical naphthalene oxidation
袁滨 1安欣 1刘玉芬1
作者信息
- 1. 中石化(北京)化工研究院有限公司,北京 100013
- 折叠
摘要
Abstract
A catalyst prepared for preparation phthalic anhydride by technical naphthalene oxidation was developed,and it was produced on an industrial scale.The reaction process parameters were studied using a single tube model test device.The experimental results show that the developed catalyst has a naphthalene content of 75-85 g/m3 at a single-tube air flow rate of 4.0 m3/h and a salt bath temperature of 340-350℃.The product yield of phthalic anhydride at the outlet of the reactor is 102%-104%(w),and the mass yield of naphthoquinone in the product is not higher than 0.5%(w).The results of the start-stop test during the induction period indicate that the catalyst has excellent resistance to frequent start-stop.The catalyst aging test result shows that the developed catalyst has good resistance to temperature runaway.In addition,the performance of the catalyst remains basically unchanged during repeated start-stop,indicating good stability.关键词
萘/苯酐/催化剂稳定性/开停车Key words
naphthalene/phthalic anhydride/stability of catalyst/start-stop分类
化学化工引用本文复制引用
袁滨,安欣,刘玉芬..工业萘氧化制苯酐催化剂性能研究[J].石油化工,2024,53(5):643-648,6.
