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首页> 外文期刊>HIGH TEMPERATURE MATERIALS AND PROCESSES >Preparation of Eupatorium Adenophorum Based Porous Carbon with Microwave Heating using Response Surface Methodology
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Preparation of Eupatorium Adenophorum Based Porous Carbon with Microwave Heating using Response Surface Methodology

机译：基于响应面法的微波加热制备基于Eupatorium adenophorum的多孔碳

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摘要

Eupatorium adenophorum was utilized as raw materials for the preparation of activated carbon via microwave assisted steam activation. Influences of the three vital process parameters - activation temperature, activation duration and steam flow rate - have been assessed on the adsorption capacity and yield of Eupatorium adenophorum activated carbon (EAAC). The process parameters were optimized utilizing the Design Expert software and were identified to be an activation duration of 45 min, an activation temperature of 950 °C and a steam flow rate of 0.7 ml/min, with the resultant iodine number and yield being 1,010 mg/g and 20.13% respectively. The validity of process model to optimize the process parameters was verified using the analysis of variance (ANOVA). The key parameters that characterize quality of the porous carbon such as the BET surface area, total pore volume and average pore diameter were estimated to be 1,142 m2/g, 0.84 ml/g and 3.3 nm respectively, for the sample corresponding to the optimized process conditions. Additionally the pore structure is characterized using Scanning Electron Microscope (SEM). The present work strongly supports utilization of Eupatorium adenophorum as a potential precursor through microwave heating.
机译：以Eupatorium adenophorum为原料，通过微波辅助蒸汽活化制备活性炭。评估了活化温度、活化持续时间和蒸汽流速这三个重要工艺参数对桉树活性炭（EAAC）吸附能力和产率的影响。利用Design Expert软件对工艺参数进行优化，确定活化持续时间为45 min，活化温度为950 °C，蒸汽流速为0.7 ml/min，碘值和产率分别为1,010 mg/g和20.13%。利用方差分析（ANOVA）验证了过程模型优化过程参数的有效性。对于与优化工艺条件相对应的样品，表征多孔碳质量的关键参数，如BET表面积、总孔体积和平均孔径，估计分别为1,142 m2/g、0.84 ml/g和3.3 nm。此外，使用扫描电子显微镜（SEM）对孔结构进行了表征。本工作有力地支持了通过微波加热利用Eupatorium adenophorum作为潜在前体。

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