An NMR study of the effect of hydrothermal dewatering on the structure of an Australian brown coal

S C  Martin; C E  Snape; J M  Andresen; M M  Maroto-Valer; L M  Clemow; W R  Jackson

An NMR study of the effect of hydrothermal dewatering on the structure of an Australian brown coal

S C Martin, C E Snape, J M Andresen, M M Maroto-Valer, L M Clemow, W R Jackson

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The effect of hydrothermal dewatering (HTD) on the structure of Loy Yang coal has been investigated by quantitative solid state C-13 and in situ broadline H-1 NMR, Treatment at 320 degrees C gives rise to significant decrease in aliphatic and CO/COOH functionality due to volatilization and thermal decomposition of the guest phase. Broadline H-1 NMR indicated that most of the hydrogen in the brown coal is relatively mobile (ca. 90%). However, after treatment, only 30% of the hydrogen remains so.

Original language	English
Title of host publication	Prospects for Coal Science in the 21st Century
Editors	BQ Li, ZY Liu
Place of Publication	Shanxi
Publisher	Shanxi Science & Technology Press
Pages	673-676
Number of pages	4
Volume	1-2
ISBN (Print)	7-5377-1650-4
Publication status	Published - 1999
Event	10th International Conference on Coal Science - TAIYUAN Duration: 12 Sept 1999 → 17 Sept 1999

Conference

Conference	10th International Conference on Coal Science
City	TAIYUAN
Period	12/09/99 → 17/09/99

Cite this

@inproceedings{57edfff0766949db84161aa8cb478031,

title = "An NMR study of the effect of hydrothermal dewatering on the structure of an Australian brown coal",

abstract = "The effect of hydrothermal dewatering (HTD) on the structure of Loy Yang coal has been investigated by quantitative solid state C-13 and in situ broadline H-1 NMR, Treatment at 320 degrees C gives rise to significant decrease in aliphatic and CO/COOH functionality due to volatilization and thermal decomposition of the guest phase. Broadline H-1 NMR indicated that most of the hydrogen in the brown coal is relatively mobile (ca. 90\%). However, after treatment, only 30\% of the hydrogen remains so.",

author = "Martin, \{S C\} and Snape, \{C E\} and Andresen, \{J M\} and Maroto-Valer, \{M M\} and Clemow, \{L M\} and Jackson, \{W R\}",

year = "1999",

language = "English",

isbn = "7-5377-1650-4",

volume = "1-2",

pages = "673--676",

editor = "BQ Li and ZY Liu",

booktitle = "Prospects for Coal Science in the 21st Century",

publisher = "Shanxi Science \& Technology Press",

note = "10th International Conference on Coal Science ; Conference date: 12-09-1999 Through 17-09-1999",

}

Martin, SC, Snape, CE, Andresen, JM , Maroto-Valer, MM, Clemow, LM & Jackson, WR 1999, An NMR study of the effect of hydrothermal dewatering on the structure of an Australian brown coal. in BQ Li & ZY Liu (eds), Prospects for Coal Science in the 21st Century . vol. 1-2, Shanxi Science & Technology Press, Shanxi, pp. 673-676, 10th International Conference on Coal Science, TAIYUAN, 12/09/99.

An NMR study of the effect of hydrothermal dewatering on the structure of an Australian brown coal. / Martin, S C ; Snape, C E ; Andresen, J M et al.
Prospects for Coal Science in the 21st Century . ed. / BQ Li; ZY Liu. Vol. 1-2 Shanxi: Shanxi Science & Technology Press, 1999. p. 673-676.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - An NMR study of the effect of hydrothermal dewatering on the structure of an Australian brown coal

AU - Martin, S C

AU - Snape, C E

AU - Andresen, J M

AU - Maroto-Valer, M M

AU - Clemow, L M

AU - Jackson, W R

PY - 1999

Y1 - 1999

N2 - The effect of hydrothermal dewatering (HTD) on the structure of Loy Yang coal has been investigated by quantitative solid state C-13 and in situ broadline H-1 NMR, Treatment at 320 degrees C gives rise to significant decrease in aliphatic and CO/COOH functionality due to volatilization and thermal decomposition of the guest phase. Broadline H-1 NMR indicated that most of the hydrogen in the brown coal is relatively mobile (ca. 90%). However, after treatment, only 30% of the hydrogen remains so.

AB - The effect of hydrothermal dewatering (HTD) on the structure of Loy Yang coal has been investigated by quantitative solid state C-13 and in situ broadline H-1 NMR, Treatment at 320 degrees C gives rise to significant decrease in aliphatic and CO/COOH functionality due to volatilization and thermal decomposition of the guest phase. Broadline H-1 NMR indicated that most of the hydrogen in the brown coal is relatively mobile (ca. 90%). However, after treatment, only 30% of the hydrogen remains so.

M3 - Conference contribution

SN - 7-5377-1650-4

VL - 1-2

SP - 673

EP - 676

BT - Prospects for Coal Science in the 21st Century

A2 - Li, BQ

A2 - Liu, ZY

PB - Shanxi Science & Technology Press

CY - Shanxi

T2 - 10th International Conference on Coal Science

Y2 - 12 September 1999 through 17 September 1999

ER -

An NMR study of the effect of hydrothermal dewatering on the structure of an Australian brown coal

Abstract

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