Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
SJR: 0.137 SNIP: 0.341 CiteScore™: 0.43

ISSN Печать: 1093-3611
ISSN Онлайн: 1940-4360

Выпуски:
Том 23, 2019 Том 22, 2018 Том 21, 2017 Том 20, 2016 Том 19, 2015 Том 18, 2014 Том 17, 2013 Том 16, 2012 Том 15, 2011 Том 14, 2010 Том 13, 2009 Том 12, 2008 Том 11, 2007 Том 10, 2006 Том 9, 2005 Том 8, 2004 Том 7, 2003 Том 6, 2002 Том 5, 2001 Том 4, 2000 Том 3, 1999 Том 2, 1998 Том 1, 1997

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v1.i4.30
pages 441-448

COMBINED EFFECTS OF OXYGEN, CHLORINE AND WATER VAPOR ON THE VAPORIZATION OF HEAVY METALS DURING FLY ASHES VITRIFICATION BY PLASMA

J. M. Badie
C. N. R. S., Institut de Science et de Genie des Materiaux et Procedes B. P. 5, Odeillo, F-66125 Font-Romeu Cedex
X. Chen
Institut de Science et de Genie des Materiaux et Precedes - CNRS BP. 5 - ODEILLO - 66125 FONT-ROMEU CEDEX - France
Gilles Flamant
CNRS PROMES UPR 8521, Tecnosud, Rambla de la Thermodynamique, 66100 Perpignan, France
D. Gauthier
Institut de Science et de Genie des Materiaux et Precedes - CNRS BP. 5 - ODEILLO - 66125 FONT-ROMEU CEDEX - France

Краткое описание

The vaporization of fly ash from municipal waste incinerators during vitrification by plasma is the result of the complex interaction of 02, Cl2, H20 with a multicomponent molten bath at different temperatures. It is shown theoretically that vaporization rate decreases with 02 partial pressure and that H20 affects mainly the equilibrium pressure of alkali (Na, K). The influence of Cl2 is proved to be temperature dependent. At low temperature (1500 K) the Cl2 pressure increase causes the enhancement of the heavy metals vaporization (Pb and Zn), whereas the effect is negligible at high temperature. The main part of chlorine is associated with Na and K in the fumes.
Concerning the interest of chlorine elimination by ash washing, the theoretical analysis shows the possible decrease of heavy metal evaporation, but it is not observed experimentally due to the modification of electric arc characteristics and bath temperature with and without chlorine.


Articles with similar content:

COMBINED EFFECTS OF OXYGEN, CHWRINE AND WATER VAPOR ON THE VAPORIZATION OF HEAVY METALS DURING FLY ASHES VITRIFICATION BY PLASMA
Progress in Plasma Processing of Materials, 1997, Vol.1, 1997, issue
Gilles Flamant, J. M. Badie, X. Chen, D. Gauthier
CONTINUOUS EMISSION MONITORING OF METALS IN FLUE GASES BY ICP-OES: EFFECT OF GASEOUS MATRIX AND OPERATING CONDITIONS ON THE SPECTRAL INTERFERENCES
Progress in Plasma Processing of Materials, 2001, Vol.0, 2001, issue
C. Trassy, S. Hassaine
THERMOCHEMICAL PROPERTIES AND LASER-IGNITION PERFORMANCE OF Al/CuMoO4, Al/CuO/MoO3, Al/CuO AND Al/MoO3 NANOTHERMITES
International Journal of Energetic Materials and Chemical Propulsion, Vol.17, 2018, issue 4
Daniel Chamberland, David G. Kelly, Tommy Ringuette, Catalin Florin Petre
SEPARATION OF METALS FROM DUSTS IN A PLASMA SPOUTED BED REACTOR
Progress in Plasma Processing of Materials, 1997, Vol.1, 1997, issue
Gilles Flamant, J. Lecadet, A. Bamrim
APPLICATION OF REACTIVE PLASMA TO NUCLEAR WASTE TREATMENT - POSSIBILITY OF SEPARATION PROCESS OF ZR-NB ALLOY BY REACTIVE THERMAL PLASMA TREATMENT
High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, Vol.7, 2003, issue 4
Arata Jote, Takeshi Ichihashi, Masaaki Suzuki, Shigeru Nishio, Shinji Kawagoe