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@ARTICLE{Schupsky:902189,
author = {Schupsky, Jan Peter and Netter, Tobias and Wu, Guixuan and
Spliethoff, Hartmut and Müller, Michael},
title = {{C}rystal morphology data for viscosity modelling of fuel
slags – {S}upplementation of spinel phase and validation
by crystallisation in entrained flow gasifiers},
journal = {Fuel},
volume = {303},
issn = {0016-2361},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2021-04086},
pages = {121114 -},
year = {2021},
abstract = {Viscosity modelling is crucial to estimate the flow
behaviour of slag in gasifiers. However, viscosity modelling
of partly crystallised slags cannot yet be performed
satisfactorily. This contribution proceeds with a new
approach of ascertaining the crystal phase by
crystallisation investigations. The characteristic crystal
morphology of spinel was defined, based on its
crystallographic nature and the results of quenching and
confocal laser scanning microscope (CLSM) experiments.
Crystal morphology datasets of spinel, anorthite, melilite
and olivine phase were provided. The postulated crystal
morphologies were validated by investigations of real PiTER
and BOOSTER pilot plant gasifier slags to ensure the
transferability from recent and previous experiments to
industrial applications. Therefore, blends of coal and
biomass fuels with diverse compositions from the “Solid
Fuel Entrained Flow Gasification Database” were used. It
was succeeded to prove that experimental crystal morphology
results align well with the crystal shapes from the pilot
plant slags and reference data. Accordingly, the recent and
previous crystal morphology results can be directly applied
to industrial applications. This validation furthermore
proves that the crystal morphologies of the investigated
phases are characteristic for each phase, independently of
the slag composition in which they crystallise in. A
literature review concludes that the three most abundant
phases: anorthite, melilite and spinel of typical
crystallising gasifier slags are covered with the provided
morphology datasets. The collection of these datasets
represents a crystal morphology database, which can be used
to enhance existing viscosity models and apply them for
partly crystallised slags in industrial entrained flow
gasifiers.},
cin = {IEK-2},
ddc = {660},
cid = {I:(DE-Juel1)IEK-2-20101013},
pnm = {1215 - Simulations, Theory, Optics, and Analytics (STOA)
(POF4-121) / 1221 - Fundamentals and Materials (POF4-122)},
pid = {G:(DE-HGF)POF4-1215 / G:(DE-HGF)POF4-1221},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000686596000004},
doi = {10.1016/j.fuel.2021.121114},
url = {https://juser.fz-juelich.de/record/902189},
}