Study on the PAHs in the Raw Coal Extracts

2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring Pub Date : 2011-04-11 DOI:10.1109/CDCIEM.2011.548

Fan Li, Haili Jiao, Jie Dong, Lin Peng, L. Chang

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引用次数: 2

Abstract

It had been U.S. Environmental Protection Agency(EPA) suggested the 16 polycyclic aromatic hydrocarbons(PAHs) must take priority of control due to potential harm to people's health. The extensive amount of data show the part of PAHs source from the utilization of the coal. During the coal conversion process, PAHs released may be divided into two categories according to their formation pathways. One category is derived from complex chemical reactions and the other is free PAHs transferred from the original coals. The main idea of this study is to quantitatively analyze the total PAHs amount in the raw coal and get the relationship between PAHs and the coal properties. The results indicated that the amount of the PAHs of coal achieve to the maximum in the carbon content at 80.41%, the volatile yields at 37.19%, the O/C ratio as 0.1 and the H/C ratio as 0.8. The results also show that the rapid Soxh let extraction technique used in PAH extraction is more efficiency and environmentally friendly than the conventional Soxh let extraction technique.

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原煤萃取物中多环芳烃的研究

美国环境保护署(EPA)建议，由于16种多环芳烃(PAHs)对人体健康有潜在危害，必须优先控制。大量的数据表明，部分多环芳烃来源于煤炭的利用。煤转化过程中释放的多环芳烃按其形成途径可分为两类。一类是由复杂的化学反应产生的，另一类是从原始煤中转移出来的游离多环芳烃。本研究的主要思路是定量分析原煤中多环芳烃的总量，得到多环芳烃与煤的性质之间的关系。结果表明，煤中多环芳烃的含量在碳含量为80.41%、挥发分产率为37.19%、O/C比为0.1、H/C比为0.8时达到最大值。结果还表明，与传统的Soxh萃取技术相比，快速Soxh萃取技术在多环芳烃的提取中具有更高的效率和环保性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring

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