TY - JOUR
T1 - Analysis of oxygen-functional groups in brown coals
AU - Murata, Satoru
AU - Hosokawa, Masahiro
AU - Kidena, Koh
AU - Nomura, Masakatsu
N1 - Funding Information:
This work has been carried out as one of the “Research for the Future” projects of the Japan Society for the Promotion of Science (JSPS) through the 148 committee on coal utilization technology of JSPS.
PY - 2000/9/1
Y1 - 2000/9/1
N2 - Distribution of oxygen-functional groups (alcohol, phenol, carboxyl, carbonyl, and ether groups) in four brown coals. Australian Yallourn (abbreviated as YL), Indonesian South Banko (SB) and Adaro (AD), and US Beulah Zap (BZ), was evaluated based on chemical analysis and 13C NMR measurement. Concentrations of carbonyl and ether groups were about 20%, based on total oxygen in coal, while the distribution of carboxyl, alcohol, and phenol changed from coal to coal. The evaluation of the amount of reactive ether groups was conducted by treating the sample coals with SiCl4-NaI. which is able to cleave alkylaryl- and dialkylethers. The results indicate that the sample coals contained reactive ether groups ranging from 0.3 to 1.8 groups per 100 carbon in coal. The relationships between the amounts of oxygen-functional groups and the solubility of coal were also investigated.
AB - Distribution of oxygen-functional groups (alcohol, phenol, carboxyl, carbonyl, and ether groups) in four brown coals. Australian Yallourn (abbreviated as YL), Indonesian South Banko (SB) and Adaro (AD), and US Beulah Zap (BZ), was evaluated based on chemical analysis and 13C NMR measurement. Concentrations of carbonyl and ether groups were about 20%, based on total oxygen in coal, while the distribution of carboxyl, alcohol, and phenol changed from coal to coal. The evaluation of the amount of reactive ether groups was conducted by treating the sample coals with SiCl4-NaI. which is able to cleave alkylaryl- and dialkylethers. The results indicate that the sample coals contained reactive ether groups ranging from 0.3 to 1.8 groups per 100 carbon in coal. The relationships between the amounts of oxygen-functional groups and the solubility of coal were also investigated.
UR - http://www.scopus.com/inward/record.url?scp=0034274303&partnerID=8YFLogxK
U2 - 10.1016/S0378-3820(00)00102-8
DO - 10.1016/S0378-3820(00)00102-8
M3 - 学術論文
AN - SCOPUS:0034274303
SN - 0378-3820
VL - 67
SP - 231
EP - 243
JO - Fuel Processing Technology
JF - Fuel Processing Technology
IS - 3
ER -