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@ARTICLE{Lebendig:908738,
author = {Lebendig, Florian and Funcia, Ibai and Pérez-Vega, Rául
and Müller, Michael},
title = {{I}nvestigations on the {E}ffect of {P}re-{T}reatment of
{W}heat {S}traw on {A}sh-{R}elated {I}ssues in {C}hemical
{L}ooping {G}asification ({CLG}) in {C}omparison with
{W}oody {B}iomass},
journal = {Energies},
volume = {15},
number = {9},
issn = {1996-1073},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2022-02799},
pages = {3422 -},
year = {2022},
abstract = {Biomass chemical looping gasification (BCLG) is a promising
autothermic route for producing sustainable, N2-free, and
carbon neutral syngas for producing liquid biofuels or high
value hydrocarbons. However, different ash-related issues,
such as high-temperature corrosion, fouling and slagging,
bed agglomeration, or poisoning of the oxygen carrier might
cause significant ecologic and economic challenges for
reliable implementation of BCLG. In this work, lab-scale
investigations under gasification-like conditions at 950 °C
and thermodynamic modelling were combined for assessing the
influence of composition, pre-treatment methods, such as
torrefaction and water-leaching, and Ca-based additives on
the release and fate of volatile inorganics, as well as on
ash melting behavior. A deep characterization of both
(non-)condensable gas species and ash composition behavior,
joint with thermodynamic modelling has shown that different
pre-treatment methods and/or Ca-additives can significantly
counteract the above-mentioned problems. It can be concluded
that torrefaction alone is not suitable to obtain the
desired effects in terms of ash melting behavior or release
of problematic volatile species. However, very promising
results were achieved when torrefied or water-leached wheat
straw was blended with 2 $wt\%$ CaCO3, since ash melting
behavior was improved up to a similar level than woody
biomass. Generally, both torrefaction and water-leaching
reduced the amount of chlorine significantly},
cin = {IEK-2},
ddc = {620},
cid = {I:(DE-Juel1)IEK-2-20101013},
pnm = {1241 - Gas turbines (POF4-124) / CLARA - Chemical Looping
gAsification foR sustainAble production of biofuels
(817841)},
pid = {G:(DE-HGF)POF4-1241 / G:(EU-Grant)817841},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000794498500001},
doi = {10.3390/en15093422},
url = {https://juser.fz-juelich.de/record/908738},
}