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Title: Thermodynamic simulation of transfer of lead, cadmium, and zinc to the gas phase during oxidative and reductive thermal treatment of coals from some coal deposits of the Russian federation

Abstract

The results of thermodynamic study of the distribution of Pb, Cd, and Zn during the thermal processing of coals from the Kuznetsk and Moscow basins and the Berezovskoe coal deposit of the Kansk-Achinsk basin at different excess oxidant (air) factors and in an inert (argon) medium are presented. The equilibrium forms of compounds were revealed, and their concentrations in the gas and condensed phase were calculated. Trace elements get into the gas phase during the heat treatment of coals in both oxidizing and reducing media. Their most intense transfer to the gas phase takes place at a = 0.4. An increase in temperature enhances this process, and an increase in the ash content of coal decreased the extent of transfer. 9 refs., 10 tabs.

Authors:
; ; ;  [1]
  1. FGUP Institute for Fossil Fuels, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
21037053
Resource Type:
Journal Article
Resource Relation:
Journal Name: Solid Fuel Chemistry (English Translation); Journal Volume: 41; Journal Issue: 1
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; THERMODYNAMICS; SIMULATION; RUSSIAN FEDERATION; COAL; COAL DEPOSITS; ARGON; AIR; LEAD; TRACE AMOUNTS; ELEMENTS; ZINC; CADMIUM; ASH CONTENT; HEAT TREATMENTS

Citation Formats

L.N. Lebedeva, L.A. Kost, E.G. Gorlov, and E.V. Samuilov. Thermodynamic simulation of transfer of lead, cadmium, and zinc to the gas phase during oxidative and reductive thermal treatment of coals from some coal deposits of the Russian federation. United States: N. p., 2007. Web. doi:10.3103/S0361521907010120.
L.N. Lebedeva, L.A. Kost, E.G. Gorlov, & E.V. Samuilov. Thermodynamic simulation of transfer of lead, cadmium, and zinc to the gas phase during oxidative and reductive thermal treatment of coals from some coal deposits of the Russian federation. United States. doi:10.3103/S0361521907010120.
L.N. Lebedeva, L.A. Kost, E.G. Gorlov, and E.V. Samuilov. Thu . "Thermodynamic simulation of transfer of lead, cadmium, and zinc to the gas phase during oxidative and reductive thermal treatment of coals from some coal deposits of the Russian federation". United States. doi:10.3103/S0361521907010120.
@article{osti_21037053,
title = {Thermodynamic simulation of transfer of lead, cadmium, and zinc to the gas phase during oxidative and reductive thermal treatment of coals from some coal deposits of the Russian federation},
author = {L.N. Lebedeva and L.A. Kost and E.G. Gorlov and E.V. Samuilov},
abstractNote = {The results of thermodynamic study of the distribution of Pb, Cd, and Zn during the thermal processing of coals from the Kuznetsk and Moscow basins and the Berezovskoe coal deposit of the Kansk-Achinsk basin at different excess oxidant (air) factors and in an inert (argon) medium are presented. The equilibrium forms of compounds were revealed, and their concentrations in the gas and condensed phase were calculated. Trace elements get into the gas phase during the heat treatment of coals in both oxidizing and reducing media. Their most intense transfer to the gas phase takes place at a = 0.4. An increase in temperature enhances this process, and an increase in the ash content of coal decreased the extent of transfer. 9 refs., 10 tabs.},
doi = {10.3103/S0361521907010120},
journal = {Solid Fuel Chemistry (English Translation)},
number = 1,
volume = 41,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}