文章摘要
周丽丽,管卫兵,彭自然,何文辉,沈路遥,卓帅.运用响应面法优化芦苇基生物炭活化工艺[J].上海海洋大学学报,2019,28(6):911-920
运用响应面法优化芦苇基生物炭活化工艺
Optimization of reed-based biochar activation process by response surface methodology
投稿时间:2019-03-18  修订日期:2019-05-11
DOI:10.12024/jsou.20190302559
中文关键词: 芦苇  生物质炭  Box-Behnken设计  吸附性能  工艺优化
英文关键词: reed  biochar  Box-Benhnken design  adsorption performance  process optimization
基金项目:水体污染控制与治理科技重大专项(2017zx07205-003-R07)
作者单位E-mail
周丽丽 上海海洋大学 海洋生态与环境学院, 上海 201306  
管卫兵 上海海洋大学 海洋生态与环境学院, 上海 201306  
彭自然 上海海洋大学 海洋生态与环境学院, 上海 201306 zrpeng@shou.edu.cn 
何文辉 上海海洋大学 海洋生态与环境学院, 上海 201306  
沈路遥 上海海洋大学 海洋生态与环境学院, 上海 201306  
卓帅 上海海洋大学 海洋生态与环境学院, 上海 201306  
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中文摘要:
      为优化芦苇基生物炭制备工艺,在单因素试验考察热解温度、氨水质量分数和浸渍比(生物质原料与氨水质量之比)等3种参数对芦苇基生物炭吸附性能影响的基础上,利用Box-Benhnken中心组合设计实验,运用响应面法对其活化工艺参数进行优化。结果表明,3个因素均对生物质炭的比表面积产生影响,其影响显著性大小为热解温度 > 氨水质量分数 > 浸渍比。通过模型优化确定了最佳活化工艺参数为热解温度620℃、氨水质量分数8%、浸渍比1∶5;该工艺条件下制备的生物炭比表面积和碘吸附值分别为334.49 m2/g、585.52 mg/g,均优于未进行优化改性的样品。该值与理论值(335.2 m2/g、582.288 mg/g)基本相符,表明响应面模型与实际情况拟合良好,验证了模型的有效可行性。
英文摘要:
      In order to optimize preparation process of reed-based biochar, base on the single factor test to examine the effects of three parameters, i.e. pyrolysis temperature, ammonia mass fraction and impregnation ratio (ratio of biomass feedstock to ammonia mass) on the adsorption performance of reed-based biochar, by the Box-Benhnken Center combination design experiment and the response surface method, the activation process parameters were optimized. The results showed that all three factors had an effect on the specific surface area of biochar, and the significant effects are:pyrolysis temperature>ammonia mass fraction>impregnation ratio. The optimum activation process parameters were the pyrolysis temperature 620℃, the ammonia mass fraction 8%, and the impregnation ratio 1:5. The surface area and iodine value of prepared activated carbon under this condition was 334.49 m2/g and 585.52 mg/g, respectively,which were better than the samples which were not optimized. The experimental and theoretical values(335.2 m2/g、582.288 mg/g)were basically consistent. The response surface model fits well with the actual situation, and the effective feasibility of the model was verified.
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