Desulfurization of Brown Coal in Water under Supercritical Conditions

A method for the desulfurization of brown coal by treatment in supercritical water (T = 673.15 K, P = 30 MPa) with the subsequent deposition of gaseous sulfur compounds on a copper substrate was proposed. The products were refined fuel with a low heat value of 24 MJ/kg and Cu2S films with a thickness of 0.1 mm. The semiconductor Cu2S films can be used for the preparation of thin-film photoelectric energy converters. The greatest degree of the removal of sulfur from the brown coal was observed after an hour. The main sulfur-containing gas formed upon the autoclave treatment of brown coal in supercritical water was H2S. © 2018, Allerton Press, Inc.

Authors
Savitsky D.P. 1 , Stanishevskii Y.M. 1 , Gizha S.S. 2 , Tur’yanskii A.G.2
Journal
Solid Fuel Chemistry
Number of issue
3
Language
English
Pages
143-152
Status
Published
Link
External link
DOI
10.3103/S0361521918030114
Volume
52
Year
2018
Organizations
  • 1 Institute of Biochemical Technology and Nanotechnology, People’s Friendship University of Russia, Moscow, 117198, Russian Federation
  • 2 Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 117924, Russian Federation
Keywords
brown coal; desulfurization; supercritical fluid
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/6690/
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