Inhibiting effect of imidazolium-based ionic liquids on the spontaneous combustion characteristics of lignite

被引:43
作者
Cui, Fu-Sheng [1 ]
Bin Laiwang [2 ]
Shu, Chi-Min [3 ]
Jiang, Jun-Cheng [1 ]
机构
[1] Nanjing Tech Univ, Coll Safety Sci & Engn, Jiangsu Key Lab Hazardous Chem Safety & Control, 200 North Zhongshan Rd, Nanjing 210009, Jiangsu, Peoples R China
[2] Natl Yunlin Univ Sci & Technol YunTech, Grad Sch Engn Sci & Technol, 123 Univ Rd,Sec 3, Touliu 64002, Yunlin, Taiwan
[3] Natl Yunlin Univ Sci & Technol, Sch Engn, Ctr Proc Safety & Ind Disaster Prevent, 123 Univ Rd,Sec 3, Touliu 64002, Yunlin, Taiwan
关键词
Imidazolium-based ionic liquid; Distilled water; Lignite; Inhibiting effect; Spontaneous combustion; LOW-TEMPERATURE OXIDATION; COAL OXIDATION; FTIR ANALYSIS; TG-FTIR; DISPERSION; MECHANISM; PRODUCTS; OXYGEN;
D O I
10.1016/j.fuel.2017.12.092
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
In this study, three imidazolium-based ionic liquids (ILs) and distilled water flushing were used to treat lignite subsamples to ascertain the inhibiting effect of ILs on the spontaneous combustion characteristics of lignite. The combustion characteristics, gas generation results during decomposition, and changes in the functional groups in these IL- and water-treated coal subsamples were compared with those of untreated coal through thermo-gravimetry and Fourier transform infrared spectroscopy analysis. The results showed that 1,3-dimethylimidazolium iodide ([Mmim][I]) was the most capable of reducing the -OH groups in lignite and inhibiting the spontaneous combustion of lignite. Furthermore, 1-ethyl-3-methylimidazolium iodide ([Emim][I]) was the most capable of increasing the -COOH groups in lignite and reducing the maximum mass loss rate of lignite. Analysis of the recovered ILs revealed that the ILs did not substantially change after the treatment, and recovery rates higher than 92% were achieved.
引用
收藏
页码:508 / 514
页数:7
相关论文
共 32 条
[1]   Characterizing ionic liquids on the basis of multiple solvation interactions [J].
Anderson, JL ;
Ding, J ;
Welton, T ;
Armstrong, DW .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (47) :14247-14254
[2]   Low-temperature oxidation of some Turkish coals [J].
Baris, K. ;
Kizgut, S. ;
Didari, V. .
FUEL, 2012, 93 (01) :423-432
[3]   TG-FTIR analysis of biomass pyrolysis [J].
Bassilakis, R ;
Carangelo, RM ;
Wójtowicz, MA .
FUEL, 2001, 80 (12) :1765-1786
[4]   Modification of lignites via low temperature ionic liquid treatment [J].
Cummings, Joshua ;
Tremain, Priscilla ;
Shah, Kalpit ;
Heldt, Emily ;
Moghtaderi, Behdad ;
Atkin, Rob ;
Kundu, Sazal ;
Vuthaluru, Hari .
FUEL PROCESSING TECHNOLOGY, 2017, 155 :51-58
[5]   TG-FTIR characterization of coal and biomass single fuels and blends under slow heating rate conditions: Partitioning of the fuel-bound nitrogen [J].
Di Nola, G. ;
de Jong, W. ;
Spliethoff, H. .
FUEL PROCESSING TECHNOLOGY, 2010, 91 (01) :103-115
[6]  
Ge LM., 2003, J XIAN U SCI TECHNOL, V2, P187
[7]   Room temperature ionic liquids of alkylimidazolium cations and fluoroanions [J].
Hagiwara, R ;
Ito, Y .
JOURNAL OF FLUORINE CHEMISTRY, 2000, 105 (02) :221-227
[8]   TG-GC-MS study of volatile products from Shengli lignite pyrolysis [J].
He, Qiongqiong ;
Wan, Keji ;
Hoadley, Andrew ;
Yeasmin, Hasina ;
Miao, Zhenyong .
FUEL, 2015, 156 :121-128
[9]   FTIR study of the evolution of coal structure during the coalification process [J].
Ibarra, JV ;
Munoz, E ;
Moliner, R .
ORGANIC GEOCHEMISTRY, 1996, 24 (6-7) :725-735
[10]   Compositional and structural changes during aerial oxidation of coal and their relations with technological properties [J].
Iglesias, MJ ;
de la Puente, G ;
Fuente, E ;
Pis, JJ .
VIBRATIONAL SPECTROSCOPY, 1998, 17 (01) :41-52