The chemical structure and thermal modification of low rank coals

Masakatsu Nomura; Takeshi Muratani; Satoru Murata; Shigeru Maeda; Akira O-ki

The chemical structure and thermal modification of low rank coals

Masakatsu Nomura^*, Takeshi Muratani, Satoru Murata, Shigeru Maeda, Akira O-ki

^*Corresponding author for this work

Department of Art and Design

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

For two brown coals, Australian Yallourn and Indonesian South Banko coals, measurements of SPE/MAS ¹³C NMR spectra, OH group analysis according to acetylation and silylation, Curiepoint pyrolysis, and analysis of CO₂H groups were conducted. Based on these results, plausible chemical structural units of above brown coals were proposed and submitted to CAMD calculation to understand the interactive forces of units. On the other hand, these brown coals were found to show the higher reactivities when modified in the presence of water at around 350 °C. The enhancement of these reactivities was examined by supposing what kinds of reaction take place based on the unit chemical structures proposed here and the interactive forces of these units.

Original language	English
Pages (from-to)	168-170
Number of pages	3
Journal	ACS Division of Fuel Chemistry, Preprints
Volume	42
Issue number	1
State	Published - 1997

Keywords

Chemical structure
Low rank coal
Thermal modification

ASJC Scopus subject areas

General Energy

Cite this

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title = "The chemical structure and thermal modification of low rank coals",

abstract = "For two brown coals, Australian Yallourn and Indonesian South Banko coals, measurements of SPE/MAS 13C NMR spectra, OH group analysis according to acetylation and silylation, Curiepoint pyrolysis, and analysis of CO2H groups were conducted. Based on these results, plausible chemical structural units of above brown coals were proposed and submitted to CAMD calculation to understand the interactive forces of units. On the other hand, these brown coals were found to show the higher reactivities when modified in the presence of water at around 350 °C. The enhancement of these reactivities was examined by supposing what kinds of reaction take place based on the unit chemical structures proposed here and the interactive forces of these units.",

keywords = "Chemical structure, Low rank coal, Thermal modification",

author = "Masakatsu Nomura and Takeshi Muratani and Satoru Murata and Shigeru Maeda and Akira O-ki",

year = "1997",

language = "英語",

volume = "42",

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journal = "ACS Division of Fuel Chemistry, Preprints",

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TY - JOUR

T1 - The chemical structure and thermal modification of low rank coals

AU - Nomura, Masakatsu

AU - Muratani, Takeshi

AU - Murata, Satoru

AU - Maeda, Shigeru

AU - O-ki, Akira

PY - 1997

Y1 - 1997

N2 - For two brown coals, Australian Yallourn and Indonesian South Banko coals, measurements of SPE/MAS 13C NMR spectra, OH group analysis according to acetylation and silylation, Curiepoint pyrolysis, and analysis of CO2H groups were conducted. Based on these results, plausible chemical structural units of above brown coals were proposed and submitted to CAMD calculation to understand the interactive forces of units. On the other hand, these brown coals were found to show the higher reactivities when modified in the presence of water at around 350 °C. The enhancement of these reactivities was examined by supposing what kinds of reaction take place based on the unit chemical structures proposed here and the interactive forces of these units.

AB - For two brown coals, Australian Yallourn and Indonesian South Banko coals, measurements of SPE/MAS 13C NMR spectra, OH group analysis according to acetylation and silylation, Curiepoint pyrolysis, and analysis of CO2H groups were conducted. Based on these results, plausible chemical structural units of above brown coals were proposed and submitted to CAMD calculation to understand the interactive forces of units. On the other hand, these brown coals were found to show the higher reactivities when modified in the presence of water at around 350 °C. The enhancement of these reactivities was examined by supposing what kinds of reaction take place based on the unit chemical structures proposed here and the interactive forces of these units.

KW - Chemical structure

KW - Low rank coal

KW - Thermal modification

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M3 - 学術論文

AN - SCOPUS:0542388989

SN - 0569-3772

VL - 42

SP - 168

EP - 170

JO - ACS Division of Fuel Chemistry, Preprints

JF - ACS Division of Fuel Chemistry, Preprints

IS - 1

ER -

The chemical structure and thermal modification of low rank coals

Abstract

Keywords

ASJC Scopus subject areas

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