FTIR study on structural changes of different–rank coals caused by single/multiple extraction with cyclohexanone and NMP/CS 2 mixed solvent
作者: Bin TianYing–yun QiaoYuan–yu TianKe–chang XieQing LiuHai–feng Zhou
作者单位: 1State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266580, China
2State Key Laboratory Breeding Base of Coal Science and Technology Co–founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, Taiyuan 030024, China
3Shandong Provincial Key Laboratory of Universities and Colleges of Low–carbon Energy and Chemical Technology, Shandong University of Science and Technology, Qingdao, Shandong 266590, China
刊名: Fuel Processing Technology, 2016, Vol.154 , pp.210-218
来源数据库: Elsevier Journal
DOI: 10.1016/j.fuproc.2016.08.035
关键词: HCl/HF leachingMultiple extractionStructural changeFTIRCurve–fitting techniqueInteraction mechanism
英文摘要: Abstract(#br)A novel multiple extraction (ME) process integrated heat reflux extraction (HRE) with cyclohexanone (CYC) followed by ultrasonic assisted extraction (UAE) with N -methyl-2-pyrrolidone/CS 2 (NMP/CS 2 ) mixed solvent was developed for extraction of four different rank demineralized coals. Raw coals and their demineralized coals were evaluated by X-ray diffraction, X-ray fluorescence, and Fourier transform infrared (FTIR) spectroscopy analytical techniques to determine HCl/HF leaching on the properties and FTIR spectra of coals first. And then the demineralized coals as well as their extraction residues were studied using FTIR spectrometry and curve–fitting technique to clarify the performance of ME process and investigate the structural changes in coals during extraction. The...
全文获取路径: Elsevier  (合作)
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影响因子:2.816 (2012)

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