|本期目录/Table of Contents|

[1]饶维,刘晨*.臭氧催化氧化催化剂的失活及再生[J].石化技术与应用,2023,4:272-276.
　RAO Wei,LIU Chen.Deactivation and regeneration of ozone-catalyzed oxidation catalysts[J].Petrochemical technology & application,2023,4:272-276.
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臭氧催化氧化催化剂的失活及再生(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2023年4期
页码:
272-276
栏目:
出版日期:
2023-07-10

文章信息/Info

Title:
Deactivation and regeneration of ozone-catalyzed oxidation catalysts
文章编号:
1009-0045（2023）04-0272-05
作者:
饶维; 刘晨*
（湖南石油化工职业技术学院，湖南 岳阳 414000）
Author(s):
RAO Wei; LIU Chen
（Hunan Petrochemical Vocational Technology College， Yueyang 414000，China）
关键词:
污水; 臭氧催化氧化; 催化剂; 失活; 再生
Keywords:
sewage;  ozone-catalyzed oxidation;  catalyst;  deactivation;  regeneration
分类号:
X 78
DOI:
DOI：10.19909/j.cnki.ISSN1009-0045.2023.04.0272
文献标识码:
B
摘要:
考察了臭氧催化氧化催化剂的组成、形貌以及活性，对其失活原因进行了分析，并对再生方法进行了优化。结果表明：催化剂失活是由含盐污水中的金属（非金属）盐沉积在催化剂表面，阻碍催化剂与臭氧接触所致；与新鲜催化剂相比，装置卸出催化剂的比表面积下降17%，孔容下降21%，活性下降至13.9%；物理-化学再生法再生效果优于物理再生法；采用质量分数为1%的柠檬酸溶液处理后的催化剂性能最佳，其比表面积和孔体积略高于新鲜剂，活性可恢复至新鲜剂的95%，连续运行3周后，活性仅下降6个百分点。
Abstract:
The composition， morphology and activity of the ozone-catalyzed oxidation catalysts were investigated， and the deactivation reasons were analyzed. The regeneration methods were optimized. The results showed that the deactivation of the catalyst was due to the deposition of metal/nonmetal salts on the surface of the catalyst， which hindered the contact between the catalyst and ozone. Compared with the fresh catalyst， the specific surface area and the pore volume of the catalyst discharged from the unit decreased by 17% and 21% respectively， and the activity decreased to 13.9%. The performance of the physical-chemical regeneration method was better than the physical regeneration method. The catalyst treated with 1% citric acid solution showed the best performance. The specific surface area and pore volume were slightly higher than those of the fresh catalyst， and the activity could be restored to 95% of that of the fresh catalyst. The activity decreased by about 6 percentage points after 3 weeks of continuous operation.

参考文献/References

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备注/Memo

备注/Memo:
中国石油化工股份有限公司长岭分公司资助项目（31900000-21-ZC 0607-0005）
更新日期/Last Update: 2023-07-10