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@ARTICLE{Jiao:849819,
author = {Jiao, Facun and Kinoshita, Norikazu and Kawaguchi, Masato
and Asada, Motoyuki and Honda, Maki and Sueki, Keisuke and
Ninomiya, Yoshihiko and Sergeev, Dmitry and Bläsing, Marc
and Müller, Michael},
title = {{S}ynergistic {M}echanisms of {C}a{C}l 2 and {C}a{O} on the
{V}aporization of {C}s from {C}s-{D}oped {A}sh during
{T}hermal {T}reatment},
journal = {Energy $\&$ fuels},
volume = {32},
number = {4},
issn = {1520-5029},
address = {Columbus, Ohio},
publisher = {American Chemical Society},
reportid = {FZJ-2018-03922},
pages = {5433 - 5442},
year = {2018},
abstract = {This study aimed to clarify the roles of CaCl2, CaO, and
their mixture in the vaporization of Cs from Cs-doped ash
during thermal treatment. In particular, potential
mechanisms of the synergistic effect of the addition of a
mixture of CaCl2 and CaO on Cs vaporization were
investigated. Vaporization experiments were carried out in a
lab-scale horizontal furnace at 900, 1000, and 1100 °C. The
results indicated that adding a mixture of CaCl2 and CaO
produced a synergistic effect on Cs vaporization when the
reaction temperature was above 1000 °C and the vaporization
ratio was noticeably increased in comparison to that when
adding CaCl2 or CaO alone. The formation of wadalite
(Ca6Al5Si2O16Cl3) and/or igumnovite [Ca3Al2(SiO4)2Cl4],
derived from chemical reactions among CaCl2, CaO, and
aluminosilicates in the Cs-doped ash, delayed the release of
Cl during thermal treatment, thus extending the contact time
of Cs and gaseous Cl. Furthermore, CaO destabilized the
aluminosilicate structure, resulting in a higher volatility
and reactivity of Cs, and thus, a reaction readily occurred
between activated Cs and gaseous Cl released from the
decomposition of wadalite and/or igumnovite.},
cin = {IEK-2},
ddc = {620},
cid = {I:(DE-Juel1)IEK-2-20101013},
pnm = {111 - Efficient and Flexible Power Plants (POF3-111)},
pid = {G:(DE-HGF)POF3-111},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000430783300142},
doi = {10.1021/acs.energyfuels.8b00620},
url = {https://juser.fz-juelich.de/record/849819},
}