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首页> 外文期刊>Environmental Science & Technology >Prediction of Adsorption Equilibrium of VOCs onto Hyper-Cross-Linked Polymeric Resin at Environmentally Relevant Temperatures and Concentrations Using Inverse Gas Chromatography
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Prediction of Adsorption Equilibrium of VOCs onto Hyper-Cross-Linked Polymeric Resin at Environmentally Relevant Temperatures and Concentrations Using Inverse Gas Chromatography

机译：使用反向气相色谱法在环境相关温度和浓度下预测超交联聚合物树脂上VOC的吸附平衡

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摘要

Hyper-cross-linked polymeric resin (HPR) represents a class of predominantly microporous adsorbents and has good adsorption performance toward VOCs. However, adsorption equlibrium of VOCs onto HPR are limited. In this research, a novel method for predicting adsorption capacities of VOCs on HPR at environmentally relevant temperatures and concentrations using inverse gas chromatography data was proposed Adsorption equilibrium of six VOCs (n-pentane, n-hexane, dichloromethane, acetone, benzene, 1, 2-dichloroethane) onto HPR in the temperature range of 403-443 K were measured by inverse gas chromatography (IGC). Adsorption capacities at environmentally relevant temperatures (293-328 K) and concentrations (P/P_s == 0.1-0.7) were predicted using Dubinin-Radushkevich (DR) equation based on Polany's theory. Taking consideration of the swelling properties of HPR, the volume swelling ratio (r) was introduced and r.V_(micto) was used instead of V_(micro) determined by N_2 adsorption data at 77 K as the parameter q_0 (limiting micropore volume) of the DR equation. The results showed that the adsorption capacities of VOCs at environmentally relevant temperatures and concentrations can be predicted effectively using IGC data, the root-mean-square errors between the predicted and esperimental data was below 9.63%. The results are meaningful because they allow accurate prediction of adsorption capacities of adsorbents more quicckly and conveniently using IGC data.
机译：超交联聚合物树脂（HPR）代表了一类主要是微孔吸附剂，并且对VOC具有良好的吸附性能。但是，VOC在HPR上的吸附平衡受到限制。在这项研究中，提出了一种使用逆气相色谱数据预测环境相关温度和浓度下HPR上VOC的吸附能力的新方法，提出了六种VOC（正戊烷，正己烷，二氯甲烷，丙酮，苯，1，通过逆气相色谱法（IGC）测量在403-443K温度范围内在HPR上的2-二氯乙烷）。使用基于Polany理论的Dubinin-Radushkevich（DR）方程预测了与环境相关的温度（293-328 K）和浓度（P / P_s == 0.1-0.7）时的吸附容量。考虑到HPR的溶胀特性，引入体积溶胀率（r），并使用r.V_（micto）代替由N_2吸附数据在77 K下确定的V_（micro）作为参数q_0（极限微孔体积） DR方程结果表明，使用IGC数据可以有效预测VOCs在与环境有关的温度和浓度下的吸附容量，预测数据和实验数据之间的均方根误差低于9.63％。该结果是有意义的，因为它们允许使用IGC数据更快速，更方便地准确预测吸附剂的吸附容量。

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  • 来源
    《Environmental Science & Technology》 |2017年第1期|522-530|共9页
  • 作者

    Lijuan Jia; Jiakai Ma; Qiuyi Shi; and Chao Long;

  • 作者单位

    State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianiin Avenue, Nanjing 210023, China;

    State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianiin Avenue, Nanjing 210023, China;

    State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianiin Avenue, Nanjing 210023, China;

    State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 163 Xianiin Avenue, Nanjing 210023, China,Nanjing University Yancheng Environmental Protection Technology and Engineering Research Institute, 888 Yingbin Road, Yancheng 22400, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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