Sequential Thermal Dissolution of Geting Bituminous Coal in Low-boiling Point Solvents
Sequential thermal dissolution (STD) of Geting bituminous coal (GBC) in benzene, methanol, ethanol, and isopropanol was conducted at 150 to 300°C for 2 h. Anthracene was added into the system as the hydrogen acceptor to trace hydrogen transfer (HT) behavior during the STD. All of
the soluble portions (SPs) were analyzed with a gas chromatograph/mass spectrometer. The once-through yields of SPs did not fluctuate obviously with raising the thermal dissolution (TD) temperature from 150 to 250°C, but significantly increased over 250°C. HT from GBC to anthracene
in benzene, methanol, and ethanol occurred at 300°C and in isopropanol at 250°C. Unlike TD in benzene, alkanolysis significantly proceeded during TD in alkanols at 300°C.
Keywords: alkanols; benzene; bituminous coal; hydrogen transfer; thermal dissolution
Document Type: Research Article
Affiliations: Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou, Jiangsu, China
Publication date: 02 December 2014
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