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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Stored Renewable Energy in Coal
Presentation Title Extraction and Thermal Dissolution of Low-rank Coal by N-methyl-2-pyrrolidinone
Author(s) Jun Zhao, Haibin Zuo, Siyang Long, Jingsong Wang, Qingguo Xue
On-Site Speaker (Planned) Jun Zhao
Abstract Scope Abstract: In order to effective use of low rank coal, the thermal dissolution coal (TDC) was extracted from four kinds of low-rank coals by N-2-methyl-2-purrolidinone(NMP) at high temperature and high pressure. The structures of thermal dissolution coal and residues were characterized by element analysis, FT-IR spectra. The effects of temperatures, coal rank, solid-liquid ratio and extraction time on the extraction yields of TDC were studied, respectively. Moreover, the extraction mechanism of TDC at mild conditions is proposed. The result shows that the ash contents of TDCs from four raw coals are significantly lower than that of raw coals, and the volatile contents and H/C are significantly improved. For KL coal, with the increase of temperature, the extraction yield of KL-TDC is improved evidently to 56.25% and the ash content is decreased to 0.49%at 350 ℃.
Proceedings Inclusion? Planned:


A Review on the State of Coal Use as Soil Amendment in East Africa and China
Aluminum-silicon Alloys Prepared from High-aluminum Fly Ash to Extract Magnesium from Serpentine
Enhancement of Coal Nanostructure and Investigation of Its Novel Properties
Extraction and Production of Rare Earth Elements from Coal-Seam Bedrock and Caprock
Extraction and Thermal Dissolution of Low-rank Coal by N-methyl-2-pyrrolidinone
Organic Agriculture Using Natural Material Coal

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