Response surface methodology was used to optimize the defluorination process of steam-enhanced microwave roasting waste cathode carbon

IF 3.8 3区 工程技术 Q3 ENERGY & FUELS Chemical Engineering and Processing - Process Intensification Pub Date : 2024-08-23 DOI:10.1016/j.cep.2024.109955
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Abstract

As a typical hazardous solid waste, improper treatment of waste cathode carbon (WCC) will cause great harm to animals and plants and their living environment. In order to make the treatment of WCC more simple, efficient and clean, this paper mainly adopts the method of microwave roasting and introducing water vapor to make the fluoride in WCC melt at high temperature and be absorbed by water vapor. The effects of water flow rate, reaction temperature, reaction time, material particle size and other important factors on the defluorination efficiency of WCC were studied by single factor experiment. In this paper, the response surface method (RSM) was used to obtain and verify the best results of the experiment, and the optimum process conditions of water vapor enhanced microwave roasting WCC defluorination were determined: the reaction temperature was 1100 °C, the reaction time was 2.8 h, and the water flow rate was 3.2 mL·min−1. Under this condition, the defluorination effect of WCC is the best. The predicted value of defluorination efficiency of WCC is 99.85 %, and the actual value is 99.8 %.

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采用响应面方法优化蒸汽强化微波焙烧废阴极碳的脱氟工艺
废阴极炭(WCC)作为一种典型的危险固废,处理不当会对动植物及其生存环境造成极大危害。为了使废阴极炭的处理更加简便、高效和清洁,本文主要采用微波焙烧和引入水蒸气的方法,使废阴极炭中的氟化物在高温下熔化并被水蒸气吸收。通过单因素实验研究了水流量、反应温度、反应时间、物料粒度等重要因素对 WCC 脱氟效率的影响。本文采用响应面法(RSM)获得并验证了实验的最佳结果,确定了水蒸气增强微波焙烧 WCC 脱氟的最佳工艺条件:反应温度为 1100 ℃,反应时间为 2.8 h,水流量为 3.2 mL-min-1。在此条件下,WCC 的脱氟效果最好。WCC 的脱氟效率预测值为 99.85%,实际值为 99.8%。
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来源期刊
CiteScore
7.80
自引率
9.30%
发文量
408
审稿时长
49 days
期刊介绍: Chemical Engineering and Processing: Process Intensification is intended for practicing researchers in industry and academia, working in the field of Process Engineering and related to the subject of Process Intensification.Articles published in the Journal demonstrate how novel discoveries, developments and theories in the field of Process Engineering and in particular Process Intensification may be used for analysis and design of innovative equipment and processing methods with substantially improved sustainability, efficiency and environmental performance.
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