低碳化学与化工2024，Vol.49Issue(2)：74-79,6.DOI:10.12434/j.issn.2097-2547.20230191
甲酸/甲酸钠还原体系对Fe(Ⅱ)EDTA络合脱硝液再生的影响
Effect of formic acid/sodium formate reduction system on regeneration of Fe(Ⅱ)EDTA complexation denitrification solution
摘要
Abstract
In the complexation denitrification reaction,the reduction and regeneration of Fe(Ⅱ)EDTA complexation denitrification solution is one of the application difficulties,and formic acid/sodium formate system has a good reducing property on Fe(Ⅱ)EDTA complexation denitrification solution under the action of palladium carbon(Pd/AC)catalyst.On this basis,the effects of ultrasonic power,formic acid amount,sodium formate amount and Pd/AC catalyst amount on the reduction and regeneration of Fe(Ⅱ)EDTA complexation denitrification solution(denitrification efficiency is 80%)were investigated by using control variable method.The results show that under the action of Pd/AC catalyst without ultrasonic,the formic acid/sodium formate reduction system can effectively reduce NO in Fe(Ⅱ)EDTA complexation denitrification solution,and achieve the reduction and regeneration of the complexation denitrification solution.When the amount of sodium formate is 10.00 g/L,the amount of formate is 2.10 g/L,and the amount of Pd/AC catalyst is 3.00 g/L,the denitrification performance of the regenerated complexation denitrification solution exhibits the best denitrification performance at 50℃(the denitrification efficiency reaches more than 97%within 60 min and the denitrification efficiency reaches more than 80%within 90 min).After several times of continuous complexation denitrification and reduction regeneration experiments,the whole system still has good denitrification performance(at the 6th switching,the denitrification efficiency is about 85%within continuous absorption for 70 min to 80 min).The results can provide reference for the pilot test and engineering application of continuous complexation denitrification.关键词
Fe(Ⅱ)EDTA络合脱硝液/还原再生/甲酸/甲酸钠体系/钯炭催化剂/连续化反应Key words
Fe(Ⅱ)EDTA complexation denitrification solution/reduction regeneration/formic acid/sodium formate system/palladium carbon catalyst/continuous experiment分类
化学化工引用本文复制引用
邓军,张国孟..甲酸/甲酸钠还原体系对Fe(Ⅱ)EDTA络合脱硝液再生的影响[J].低碳化学与化工,2024,49(2):74-79,6.基金项目
工业和信息化部高技术船舶科研计划重大工程与专项(CDGC01-KT16). （CDGC01-KT16）
