Primary Study on Relationship between PAHs and Macerals in Coal

Abstract:

The study of relationship between PAHs(Polycyclic Aromatic Hydrocarbons) and macerals contributes to understand the occurrence and distribution of PAHs in coal. Ten coal samples were collected and then tested macerals and 15 PAHs quantitatively. The concentration of total PAHs, single PAH and every-ring of PAHs tend to increase with and reduce with the increasing inertinite, vitrinite and liptinite contents. The higher the PAHs ring number is, the more obvious the effect of macerals exert on them. Higher H/C, O/C atomic ratios and higher aromaticity in inertinite groups are the main reasons for the positive relationship between inertinite and PAHs. Degree of coalification had a significant effect on the relationship between PAHs and maceral groups in coal.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 837-842
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.837
• Online since: February 2013
• Authors: Li Ping Zhang, Qing Hai Deng, Nan Jiang, Jia Yuan Cao
• Keywords: Coalification, Inertinite, Maceral, Polycyclic Aromatic Hydrocarbons (PAHs), Vitrinite

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