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@PHDTHESIS{Wang:893097,
author = {Wang, Yuan},
title = {{T}echno-economic {A}ssessment of {H}ybrid
{P}ost-combustion {C}arbon {C}apture {S}ystems in
{C}oal-fired {P}ower {P}lants and {S}teel {P}lants},
volume = {534},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Jülich},
publisher = {Forschungszentrum Jülich GmbH Znetralbibliothek, Verlag},
reportid = {FZJ-2021-02556},
isbn = {978-3-95806-545-1},
series = {Schriften des Forschungszentrums Jülich Reihe Energie $\&$
Umwelt / Energy $\&$ Environment},
pages = {IV, xx, 230},
year = {2021},
note = {Dissertation, RWTH Aachen University, 2020},
abstract = {Post-combustion carbon capture technology is seen as an
indispensable option for global CO2mitigation. Nevertheless,
the benchmark post-combustion carbon capture technology,
i.e. theMEA-based chemical absorption technology, has been
reported to be rather energy-intensive.Meanwhile, the
performance of the gas permeation membrane technology, one
of the emergingalternative carbon capture technologies, has
also been found to be restricted by the membraneproperties,
especially when it is designed to be applied in
industrial-scale plants. As a result, theapplications of the
post-combustion carbon capture technology in the power and
industrialsectors are faced with great resistance. On the
other hand, the research of post-combustioncarbon capture
for industry is found to lag behind the power sector. The
objective of this work isto advance the feasibility of
post-combustion carbon capture technology as well as
contribute tothe study of carbon capture in the steelmaking
industry.In order to do this, two types of hybrid
membrane/MEA carbon capture systems (Hybrid D1 $\&D2)$ were
designed in Aspen Plus®. In the Hybrid D1 system, a
single-stage membrane iscombined with an MEA system while a
cascaded membrane system and an MEA system arecombined in
the Hybrid D2 system. For comparison, two widely studied
standalone capturesystems (cascaded membrane $\&$ MEA) were
also modeled. The Polyactive® membrane wasselected to be
the investigated membrane material. These carbon capture
systems weredeployed in a reference coal-fired power plant
and a reference iron $\&$ steel plant, respectively. Amodel
of the power plant was simulated using EBSILON®
Professional to represent the detailedoperation. Pinch
analysis was used to analyze the potential for waste heat
integration of thecapture systems into the water-steam
cycle. In addition, the performances of the capturesystems
when the power plant is operated at part-load were
investigated. As for the iron $\&$ steelplant, the energy
use network and point sources of CO2 emissions inside the
plant wereanalyzed so as to specify the boundary condition
for carbon capture. A cost model based on thediscounted cash
flow approach was developed for economic analysis.In the
power plant, it is revealed that the Hybrid D1 system is
neither an energy-efficient nor acost-effective design. The
Hybrid D2 system, however, has shown to lead to both a
lowerefficiency penalty (9.7 $\%-pts)$ and a lower CO2
avoidance cost (48.8 €/tCO2) than the standalonecascaded
membrane and MEA systems in the power plant. A basic
principle for the design of ahybrid system is concluded
according to the result.In the iron $\&$ steel plant, the
Hybrid D2 system leads to the lowest CO2 avoidance cost
(53.9€/tCO2) but the differences in the avoidance costs of
different capture systems are insignificantconsidering the
uncertainty of the cost model. It is also found that the
steam supply strategy haspronounced impacts on the cost
competitiveness of a carbon capture system. In addition, it
isdisclosed that an overall lower CO2 avoidance cost can be
achieved by deploying multiple typesof capture systems to
deal with different point sources of CO2 emissions as
compared todeploying only one single type of capture
system.},
cin = {IEK-3},
cid = {I:(DE-Juel1)IEK-3-20101013},
pnm = {1111 - Effective System Transformation Pathways (POF4-111)
/ 1112 - Societally Feasible Transformation Pathways
(POF4-111)},
pid = {G:(DE-HGF)POF4-1111 / G:(DE-HGF)POF4-1112},
typ = {PUB:(DE-HGF)3 / PUB:(DE-HGF)11},
urn = {urn:nbn:de:0001-2021072212},
url = {https://juser.fz-juelich.de/record/893097},
}