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Study on Extraction Asphaltenes from Direct Coal Liquefaction Residue with Ionic Liquids
Alternative TitleInd. Eng. Chem. Res.
Nie, Yi; Bai, Lu; Li, Yi; Dong, Haifeng; Zhang, Xiangping; Zhang, Suojiang
2011-09-07
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume50Issue:17Pages:10278-10282
AbstractDirect coal liquefaction residue (DCLR) contains about 25% asphaltenes which are proved to be important precursors for preparing high value-added carbon materials. In this work, ionic liquids (ILs) were used as potential solvents to extract asphaltenes from DCLR, and a series of dialkylphosphate ILs, i.e., imidazolium-based, pyridinium-based, and ammonium-based, were synthesized and used to extract asphaltenes from DCLR The influences of extractive time, extractive temperature, and mass ratio of ILs to DCLR on extraction efficiency of asphaltenes were investigated and the optimized conditions were determined. In order to understand the mechanism of extraction asphaltenes with Its, the extracts were characterized by elemental analysis, FT-IR, (13)CNMR, and so on. The results show that it is feasible to extract asphaltenes from DCLR with dialkylphosphate ILs. The structure and size of anion and cation of ILs probably are the main factors that influence the extraction yield and the physicochemical characteristics of extracted asphaltenes, such as atomic ratio of H/C, the structure and aromatic cluster size, and so on.; Direct coal liquefaction residue (DCLR) contains about 25% asphaltenes which are proved to be important precursors for preparing high value-added carbon materials. In this work, ionic liquids (ILs) were used as potential solvents to extract asphaltenes from DCLR, and a series of dialkylphosphate ILs, i.e., imidazolium-based, pyridinium-based, and ammonium-based, were synthesized and used to extract asphaltenes from DCLR The influences of extractive time, extractive temperature, and mass ratio of ILs to DCLR on extraction efficiency of asphaltenes were investigated and the optimized conditions were determined. In order to understand the mechanism of extraction asphaltenes with Its, the extracts were characterized by elemental analysis, FT-IR, (13)CNMR, and so on. The results show that it is feasible to extract asphaltenes from DCLR with dialkylphosphate ILs. The structure and size of anion and cation of ILs probably are the main factors that influence the extraction yield and the physicochemical characteristics of extracted asphaltenes, such as atomic ratio of H/C, the structure and aromatic cluster size, and so on.
KeywordArgonne Premium Coals Mass-spectrometry Water Desulfurization Nmr
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/ie201187m
URL查看原文
Indexed BySCI
Language英语
WOS KeywordARGONNE PREMIUM COALS ; MASS-SPECTROMETRY ; WATER ; DESULFURIZATION ; NMR
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000294321700050
Citation statistics
Cited Times:44[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6493
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Nie, Yi,Bai, Lu,Li, Yi,et al. Study on Extraction Asphaltenes from Direct Coal Liquefaction Residue with Ionic Liquids[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2011,50(17):10278-10282.
APA Nie, Yi,Bai, Lu,Li, Yi,Dong, Haifeng,Zhang, Xiangping,&Zhang, Suojiang.(2011).Study on Extraction Asphaltenes from Direct Coal Liquefaction Residue with Ionic Liquids.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,50(17),10278-10282.
MLA Nie, Yi,et al."Study on Extraction Asphaltenes from Direct Coal Liquefaction Residue with Ionic Liquids".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 50.17(2011):10278-10282.
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