Effect of humic acid on equilibrium adsorption of water of Shengli lignite

LIU Hong-ying; HAO Guo-jun; ZHU Yu-xi; DU Qian-qian; ZHU Shu-quan

Volume 44 Issue 11

Nov. 2016

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Article Navigation > Journal of Fuel Chemistry and Technology > 2016 > 44(11): 1281-1286

LIU Hong-ying, HAO Guo-jun, ZHU Yu-xi, DU Qian-qian, ZHU Shu-quan. Effect of humic acid on equilibrium adsorption of water of Shengli lignite[J]. Journal of Fuel Chemistry and Technology, 2016, 44(11): 1281-1286.

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LIU Hong-ying, HAO Guo-jun, ZHU Yu-xi, DU Qian-qian, ZHU Shu-quan. Effect of humic acid on equilibrium adsorption of water of Shengli lignite[J]. Journal of Fuel Chemistry and Technology, 2016, 44(11): 1281-1286.

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Effect of humic acid on equilibrium adsorption of water of Shengli lignite

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

Funds: The project was supported by the Major State Basic Research Development Program of China (973 program, 2012CB214901)

Received Date: 2016-06-13
Rev Recd Date: 2016-07-29

Available Online: 2021-01-23

Publish Date: 2016-11-10

Abstract

Abstract

The effect of humic acid, an important component of lignite, on the water content in Shengli lignite was studied. The content of oxygen containing functional groups of humic acid in Shengli lignite was determined. The isothermal adsorption and desorption curves of the lignite, brown humic acid and the residual coal were analyzed. Further the primary and secondary site adsorption of the lignite, brown humic acid and the residual coal were studied. The results show that 2/5 carboxyl and 1/5 hydroxyl in Shengli lignite are provided by humic acid. The pore size and pore volume of brown humic acid are smaller than those of the lignite. So brown humic acid is unfavorable for the formation of water clusters. The humic acid is adverse to equilibrium adsorption of water for Shengli lignite.
- lignite,
- humic acid,
- equilibrium adsorption of water,
- isothermal adsorption

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References(20)

References

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