Aspects of structural features in lignite and lignite humic acids

Fuel Processing Technology

Volumn 87, Issue 9, 2006, Pages 829-839

  Peuravuori, J ^a   Zbankova P ^b   Pihlaja, K ^a  

^a UNIVERSITY OF TURKU   (Finland)

^b BRNO UNIVERSITY OF TECHNOLOGY   (Czech Republic)

Author keywords

13C NMR; FT IR; Humic acids; Lignite; Macromolecular network; Purification

Indexed keywords

CARBOXYLIC ACIDS; COAL; FOURIER TRANSFORM INFRARED SPECTROSCOPY; MACROMOLECULES; NUCLEAR MAGNETIC RESONANCE; PURIFICATION; STRUCTURAL ANALYSIS; ULTRAVIOLET RADIATION;

13C NMR; HUMIC ACIDS; MACROMOLECULAR NETWORKS; WASHING PURIFICATION;

LIGNITE;

EID: 33746294171     PISSN: 03783820     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.fuproc.2006.05.003     Document Type: Article

References (35)

1. Peuravuori J., and Pihlaja K. Preliminary study of lake dissolved organic matter in light of nanoscale supramolecular assembly. Environmental Science and Technology 38 (2004) 5958-5967
2. Peuravuori J., Monteiro A., Eglite L., and Pihlaja K. Comparative study for separation of aquatic humic-type organic constituents by DAX-8, PVP and DEAE sorbing solids and tangential ultrafiltration: elemental composition, size-exclusion chromatography, UV-vis and FT-IR. Talanta 65 (2005) 408-422
3. Marshall R.J. The determination of peaks in biological waveforms. Computers and Biomedical Research 19 (1986) 319-329
4. Marshall R.J., Bleasby A.J., Turner R., and Cooper E.H. A computer system for analysis of chromatographic data. Chemometrics and Intelligent Laboratory Systems 1 (1987) 285-295
5. Ibarra J.V., and Miranda J.L. Detection of weathering in stockpiled coals by Fourier transform infrared spectroscopy. Vibrational Spectroscopy 10 (1996) 311-318
6. Ibarra J.V., Muñoz E., and Moliner R. FTIR study of the evolution of coal structure during the coalification process. Organic Geochemistry 24 (1996) 725-735
7. Conte P., and Piccolo A. Conformational arrangement of dissolved humic substances. Influence of solution composition on association of humic molecules. Environmental Science and Technology 33 (1999) 1682-1690
8. Rumpel C., Skjemstad J.O., Knicker H., Kögel-Knaber I., and Hüttl R.F. Techniques for the determination of carbon types present in lignite-rich mine soils. Organic Geochemistry 31 (2000) 543-551
9. 13C-NMR spectroscopy applied to natural organic matter. Progress in Nuclear Magnetic Resonance Spectroscopy 44 (2004) 215-223
10. 13C NMR spectroscopy. Talanta 59 (2003) 177-189
11. Peuravuori J. Binding of pyrene on lake aquatic humic matter: the role of structural descriptors. Analytica Chimica Acta 429 (2001) 75-89
12. Gillam A.H., and Wilson M.A. Pyrolysis-GC-MS and NMR studies of dissolved seawater humic substances and isolates of a marine diatom. Organic Geochemistry 8 (1985) 15-25
13. Gonzalez-Vila F.J., Martin F., Del Rio J.C., and Fründ R. Structural characteristics and geochemical significance of humic acids isolated from three Spanish lignite deposits. The Science of the Total Environment 117/118 (1992) 335-343
14. Peuravuori J., and Pihlaja K. Molecular size distribution and spectroscopic properties of aquatic humic substances. Analytica Chimica Acta 337 (1997) 133-149
15. Kučerik J., Conte P., Pekař M., and Piccolo A. Conformational behavior of lignite humic fractions separated by sequential pH-extractions. Fresenius Environmental Bulletin 12 (2003) 683-689
16. Ghabbour E.A., Davies G., Lam Y.-Y., and Vozzella M.E. Metal binding by humic acids isolated from water hyacinth plants (Eichhornia crassipes [Mart.]. Solm-Laubach: Pontedericeae) in the Nile Delta, Egypt. Environmental Pollution 131 (2004) 445-451
17. Li L., Zhao Z., Huang W., Peng P., Sheng G., and Fu J. Characterization of humic acids fractionated by ultrafiltration. Organic Geochemistry 35 (2004) 1025-1037
18. Maurice P.A., Pullin M.J., Cabaniss S.E., Zhou Q., Namjesnik-Dejanovic K., and Aiken G.R. A comparison of surface water natural organic matter in raw filtered water samples, XAD, and reverse osmosis isolates. Water Research 36 (2002) 2357-2371
19. Peuravuori J. NMR spectroscopy study of freshwater humic material in light of supramolecular assembly. Environmental Science and Technology 39 (2005) 5541-5549
20. 13C CP/MAS nuclear magnetic resonance. Organic Geochemistry 13 (1988) 1061-1065
21. 13C CPMAS NMR spectroscopy in coals from the Balkan peninsula. Journal of the Serbian Chemical Society 68 (2003) 599-605
22. Klučáková M., and Pekař M. Solubility and dissociation of lignitic humic acids in water suspension. Colloids and surfaces. A, Physicochemical and Engineering Aspects 252 (2005) 157-164
23. Ibarra J.V., and Juan R. Structural changes in humic acids during the coalification process. Fuel 64 (1985) 650-656
24. Orem W.H., Feder G.L., and Finkelman R.B. A possible link between Balkan endemic nephropathy and the leaching of toxic organic compounds from Pliocene lignite by groundwater: preliminary investigation. International Journal of Coal Geology 40 (1999) 237-252
25. 1H NMR) of peat, leonardite and lignite humic substances. Journal of Molecular Structure 565/566 (2001) 481-485
26. Suggate R.P., and Dickinson W.W. Carbon NMR of coals: the effects of coal type and rank. International Journal of Coal Geology 57 (2004) 1-22
27. Ibarra J.V., Cervero I., Miranda J.L., and Moliner R. Structural rank parameters of Spanish low rank coals and their influence on pyrolysis yields. Fuel Processing Technology 28 (1991) 259-273
28. Kang S., and Xing B. Phenanthrene sorption to sequentially extracted soil humic acids and humins. Environmental Science and Technology 39 (2005) 134-140
29. Statistica. Vol. III: statistic II, principal components and factor analysis. Statistica for Windows, Ver. 5.1 (1995), StatSoft Inc, Tulsa 3197-3234
30. P.J. Guy, The solvent induced swelling behaviour of Victorian brown coals. Ph.D. Dissertation, Swinburne University of Technology, 2002, Australia, Australian digital theses program, at URL http://adt.lib.swin.edu.au/public/adt-VSWT20031218.142251/.
31. Önal Y., and Ceylan K. Low temperature extractability and solvent swelling of Turkish lignites. Fuel Processing Technology 53 (1997) 81-97
32. Soderquist A., Burton D.J., Pugmire R.J., Beeler A.J., Grant D.M., Durand B., and Huk A.Y. Structural variations and evidence of segmental motion in the aliphatic region in coals observed with dipolar-dephasing NMR. Energy and Fuels 1 (1987) 50-55
33. Kučerik J., Kovář J., and Pekař M. Thermoanalytical investigation of lignite humic acids fractions. Journal of Thermal Analysis and Calorimetry 76 (2004) 55-65
34. Kučerik J., Kovář J., Pekař M., and Šimon P. Evaluation of oxidation stability of lignite humic substances by DSC induction period measurement. Naturwissenschaften 92 (2005) 336-340
35. Orem W.H., Tatu C.A., Lerch III H.E., Maharaj S.V.M., Pavlovic N., Paunescu V., and Dumitrascu V. Identification and environmental significance of the organic compounds in water supplies associated with a Balkan endemic nephropathy region in Romania. Journal of Environmental Health Research 3 (2004) 53-61