Study on lignite modified by hydrothermal and the interaction between the oxygen containing functional groups and water

LIU Hong-ying; GAO Xiang; ZHANG Ming-yang; ZHU Yan-ming; ZHU Shu-quan

Volume 42 Issue 03

Mar. 2014

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LIU Hong-ying, GAO Xiang, ZHANG Ming-yang, ZHU Yan-ming, ZHU Shu-quan. Study on lignite modified by hydrothermal and the interaction between the oxygen containing functional groups and water[J]. Journal of Fuel Chemistry and Technology, 2014, 42(03): 284-289.

Citation:

LIU Hong-ying, GAO Xiang, ZHANG Ming-yang, ZHU Yan-ming, ZHU Shu-quan. Study on lignite modified by hydrothermal and the interaction between the oxygen containing functional groups and water[J]. Journal of Fuel Chemistry and Technology, 2014, 42(03): 284-289.

Citation:

LIU Hong-ying, GAO Xiang, ZHANG Ming-yang, ZHU Yan-ming, ZHU Shu-quan. Study on lignite modified by hydrothermal and the interaction between the oxygen containing functional groups and water[J]. Journal of Fuel Chemistry and Technology, 2014, 42(03): 284-289.

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Study on lignite modified by hydrothermal and the interaction between the oxygen containing functional groups and water

School of Chemical and Environmental Engineering, China University of Mining and Thechnology (Beijing), Beijing 100083, China

Received Date: 2013-08-22
Rev Recd Date: 2013-11-06
Publish Date: 2014-03-31

Abstract

Abstract

An Mengdong lignite was modified by hydrothermal method. The water binding energy between the coal surface skeleton molecules and various oxygen containing functional groups was determined and analyzed by means of micro calorimeter. The results show that carboxyl and carbonyl significantly reduced with the increase of temperature, while the change of hydroxyl is complex. The order of hydrophilic ability from large to small for oxygen containing functional groups on coal surface is carboxyl, phenolic hydroxyl, carbonyl, large molecular of the coal.
- oxygen containing functional groups,
- lignite,
- hydro-thermal method

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References(26)

References

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