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Discussion on application of post-treatment process in fixed bed hydrogen peroxide production process
Received date: 2024-04-07
Online published: 2025-02-20
In view of the application effect of vacuum dehydration technology and alkali tower technology in hydrogen peroxide post-treatment process，it was analyzed and discussed from four aspects：dehydration of working fluid，degradation regeneration，decomposition of hydrogen peroxide in working fluid and comparison of operating costs.Among them，the removal water of alkali tower was 0.65 g/L，and the removal water of vacuum was 0.83 g/L.The content of hydrogen peroxide was decreased from 0.25 g/L to 0.03 g/L when the working liquid was treated by alkali tower.The hydrogen peroxide content in the working liquid of vacuum dehydration treatment remained unchanged.The increment of total available anthraquinone was 1.62~2.12 g/L and the regeneration rate of anthraquinone was 1.43%~1.90%.The vacuum technology adopted physical water removal without regenerative effect.The operating cost of vacuum dehydration was about 1/4 of the operating cost of alkali towers.The data results showed that the dehydration capacity and operating cost of vacuum dehydration technology were better than the latter，but the alkali tower technology had a certain capacity of working fluid regeneration and decomposition of hydrogen peroxide in the working fluid.Finally，the research progress of the regeneration of biodegradants in working fluids was summarized from two aspects：the improvement of regenerant and the improvement of regeneration process.
CHENG Xiaoqiang , MA Jun , FENG Bin , BAI Liguang , ZHAO Xiaodong . Discussion on application of post-treatment process in fixed bed hydrogen peroxide production process[J]. Inorganic Chemicals Industry, 2025 , 57(2) : 98 -104 . DOI: 10.19964/j.issn.1006-4990.2024-0192
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