Influence of carbon type on carbon isotopic composition of coal from the perspective of solid-state 13C NMR

被引：16
作者：
Ding, Dianshi [1 ,2 ]
Liu, Guijian [1 ,2 ]
Fu, Biao [1 ]
机构：
[1] Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China
[2] Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
来源：
FUEL | 2019年 / 245卷
基金：
中国国家自然科学基金;
关键词：
Coal; Carbon isotope; Carbon type; NMR; China; PERMIAN COALS; NORTH CHINA; GEOCHEMISTRY; FRACTIONATION; DELTA-C-13; COALIFICATION; SPECTROSCOPY; DELTA-N-15; PLANTS; BASIN;
D O I：
10.1016/j.fuel.2019.02.072
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：
A total of twelve coal samples at bituminous rank from China were studied using a combination of elemental analyzer/isotope ratio mass spectrometry (EA/IRMS) and solid-state C-13 nuclear magnetic resonance (NMR) spectroscopy techniques to determine their carbon isotopic compositions and carbon types. Carbon isotope analysis showed that the delta C-13 values of the studied coals ranged from -22.9% to -25.1% and correlated significantly with the ratios of aromatic carbons to aliphatic carbons. The studied coals were enriched in C-13 due to the fact that the amount of C-13-enriched aromatic carbons is more than that of C-13-depleted aliphatic carbons. The observations suggest that carbon isotopic compositions of whole coal may be controlled by the distribution of carbon types.
引用
收藏
页码：174 / 180
页数：7
相关论文
共 43 条
[11]   Carbon isotopic composition of organic acids in oil field waters, San Joaquin Basin, California, USA [J].
Franks, SG ;
Dias, RF ;
Freeman, KH ;
Boles, JR ;
Holba, A ;
Fincannon, AL ;
Jordan, ED .
GEOCHIMICA ET COSMOCHIMICA ACTA, 2001, 65 (08) :1301-1310
[12]   13C High-resolution solid-state NMR study of peat carbonization [J].
Freitas, JCC ;
Bonagamba, TJ ;
Emmerich, FG .
ENERGY & FUELS, 1999, 13 (01) :53-59
[13]   Isotope organic geochemistry [J].
Galimov, E. M. .
ORGANIC GEOCHEMISTRY, 2006, 37 (10) :1200-1262
[14]   On-line pyrolysis-GC-IRMS: isotope fractionation of thermally generated gases from coals [J].
Gaschnitz, R ;
Krooss, BM ;
Gerling, P ;
Faber, E ;
Littke, R .
FUEL, 2001, 80 (15) :2139-2153
[15]   The carbon isotope composition of ancient CO2 based on higher-plant organic matter [J].
Gröcke, DR .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2002, 360 (1793) :633-658
[16]  
Grocke DR, 1998, LETHAIA, V31, P1
[17]   The organic geochemistry of coal: from plant materials to coal [J].
Hatcher, PG ;
Clifford, DJ .
ORGANIC GEOCHEMISTRY, 1997, 27 (5-6) :251-+
[18]   Eocene-Miocene carbon-isotope and floral record from brown coal seams in the Gippsland Basin of southeast Australia [J].
Holdgate, Guy R. ;
McGowran, Brian ;
Fromhold, Tom ;
Wagstaff, Barbara E. ;
Gallagher, Stephen J. ;
Wallace, Malcolm W. ;
Sluiter, Ian R. K. ;
Whitelaw, Michael .
GLOBAL AND PLANETARY CHANGE, 2009, 65 (1-2) :89-103
[19]   PETROGRAPHIC AND GEOCHEMICAL ANATOMY OF LITHOTYPES FROM THE BLUE GEM COAL BED, SOUTHEASTERN KENTUCKY [J].
HOWER, JC ;
TAULBEE, DN ;
RIMMER, SM ;
MORRELL, LG .
ENERGY & FUELS, 1994, 8 (03) :719-728
[20]   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
12345