BL-NMR INVESTIGATIONS OF BITUMINOUS COAL AND ITS MACERALS

Authors
TRZEBICKA B KAPTURCZAK J PAJAK Z
Citation
B. Trzebicka et al., BL-NMR INVESTIGATIONS OF BITUMINOUS COAL AND ITS MACERALS, Erdol und Kohle, Erdgas, Petrochemie vereinigt mit Brennstoff-Chemie, 46(5), 1993, pp. 190-192
Citations number
15
Categorie Soggetti
Energy & Fuels","Engineering, Chemical",Geology
Journal title
Erdol und Kohle, Erdgas, Petrochemie vereinigt mit Brennstoff-Chemie → ACNP
ISSN journal
03670716
Volume
46
Issue
5
Year of publication
1993
Pages
190 - 192
Database
ISI
SICI code
0367-0716(1993)46:5<190:BIOBCA>2.0.ZU;2-B
Abstract
Polish bituminous coaql of 85.6 % carbon content and maceral concentra tes - exinite, vitrinite and inertinite - separated from this coal wer e studied by broad-line nuclear magnetic resonance between 20-degrees- C and 190-degrees-C. The recorded spectra exhibited above 110-degrees- C a complex structure. They were separated into two components. The te mperature dependence of the second moment, the linewidth and the fract ions of individual lines in the spectra allows to conclude about the a ctivation of the fast movement of a part of protons in studied samples . In connection with known models of coal morphology it is possible to correlate these proton groups with structural elements of coal.