Experimental study on the characteristics of DBD plasma coal liquefaction by using coal nanopowder

Song Chol PAK; Kuk Song HAN; Yong Jun KIM; Hak Chol CHOE

doi:10.1088/2058-6272/ab373d

Plasma Science and Technology > 2019 > 21(11): 115504. > DOI: 10.1088/2058-6272/ab373d

Song Chol PAK, Kuk Song HAN, Yong Jun KIM, Hak Chol CHOE. Experimental study on the characteristics of DBD plasma coal liquefaction by using coal nanopowder[J]. Plasma Science and Technology, 2019, 21(11): 115504. DOI: 10.1088/2058-6272/ab373d

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Experimental study on the characteristics of DBD plasma coal liquefaction by using coal nanopowder

Faculty of Physical Science, Kimchaek University of Technology, Pyongyang 950003, Democratic People's Republic of Korea

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Received Date: May 23, 2019
Revised Date: July 29, 2019
Accepted Date: July 30, 2019

Graphical Abstract

Abstract

Abstract

A new method for liquefying coal using dielectric barrier discharge plasma has been studied. By utilizing waste oil as the solvent and processing coal nanopowder in the plasma for 10 min, we have attained a liquid yield of more than 80%. The experiment shows that not only the coal nanopowder promoted the liquefaction process, but hydrogen radicals improved the liquid yield effectively. In the plasma processing, the phenomenon of the changing color of the nanopowder solution and not producing a solid residue has been obviously observed. The rational parameters that affected the liquefaction of coal nanopowder have been achieved through the experiment, and the liquefied products have been analyzed.
- liquefaction,
- DBD plasma,
- coal nanopowder

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References (13)

References

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