Effects of lithium iodide doping on the associated molecular structure of brown coal

H. Kumagai, J. I. Muraoka, J. I. Hayashi, T. Chiba, D. S. Webster, R. Sakurovs, D. Phan

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Effects of lithium iodide (LiI) doping on the associated molecular structure of brown coal have been investigated. Devolatilization of the coal is enhanced with LiI doping at lower temperature range (<300°C). The devolatilization enhanced with LiI doping proceeds without thermal decomposition and cleavage of cross-linkage structure. High temperature 1H-NMR results indicate that the LiI doping increases the fractions of mobile structure, and also enhances the mobility of molecules. During heat treatment, LiI maintains the enhanced molecular mobility resulting in an increase in the evolution of volatile matter.

Original languageEnglish
Pages (from-to)258-261
Number of pages4
JournalACS Division of Fuel Chemistry, Preprints
Volume42
Issue number1
Publication statusPublished - Dec 1 1997
Externally publishedYes

Fingerprint

iodide
Lignite
lithium
lignite
Molecular structure
Lithium
Doping (additives)
thermal decomposition
cleavage
nuclear magnetic resonance
Pyrolysis
Heat treatment
Nuclear magnetic resonance
Coal
effect
coal
Temperature
Molecules

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

Kumagai, H., Muraoka, J. I., Hayashi, J. I., Chiba, T., Webster, D. S., Sakurovs, R., & Phan, D. (1997). Effects of lithium iodide doping on the associated molecular structure of brown coal. ACS Division of Fuel Chemistry, Preprints, 42(1), 258-261.

Effects of lithium iodide doping on the associated molecular structure of brown coal. / Kumagai, H.; Muraoka, J. I.; Hayashi, J. I.; Chiba, T.; Webster, D. S.; Sakurovs, R.; Phan, D.

In: ACS Division of Fuel Chemistry, Preprints, Vol. 42, No. 1, 01.12.1997, p. 258-261.

Research output: Contribution to journalArticle

Kumagai, H, Muraoka, JI, Hayashi, JI, Chiba, T, Webster, DS, Sakurovs, R & Phan, D 1997, 'Effects of lithium iodide doping on the associated molecular structure of brown coal', ACS Division of Fuel Chemistry, Preprints, vol. 42, no. 1, pp. 258-261.
Kumagai, H. ; Muraoka, J. I. ; Hayashi, J. I. ; Chiba, T. ; Webster, D. S. ; Sakurovs, R. ; Phan, D. / Effects of lithium iodide doping on the associated molecular structure of brown coal. In: ACS Division of Fuel Chemistry, Preprints. 1997 ; Vol. 42, No. 1. pp. 258-261.
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