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@INPROCEEDINGS{Troy:892972,
author = {Troy, Stefanie and Zapp, Petra and Kuckshinrichs, Wilhelm
and Peters, Ralf and Weiske, Stefan and Moser, Peter and
Stahl, Knut},
title = {{L}ife {C}ycle {A}ssessment for {F}ull {C}hain {CCU}
{D}emonstration in the {A}lign-{CCUS} {P}roject
–{D}imethyl {E}ther and {P}olyoxymethylen {D}imethyl
{E}thers {P}roduction from {CO}2 and its {U}sages in the
{M}obility and {E}lectricity {S}ectors},
issn = {1556-5068},
reportid = {FZJ-2021-02471},
pages = {-},
year = {2021},
abstract = {As part of three years of research and development in the
European ALIGN-CCUS project, a CCU demonstration plant was
erected at the lignite-fired block K of the RWE power plant
at Niederaussem, Germany. It was the aim to demonstrate the
full chain of CCU - beginning with the capture of CO2 from
the power plant flue gas stream, via the one-step synthesis
of dimethyl ether (DME) through to its usage for electricity
generation in a peak power diesel engine generator. A
secondary target was the synthesis of polyoxymethylen
dimethyl ethers (OMEs) and their use in the mobility
sector.A thorough Life Cycle Inventory was collected based
on real process data for the first time, supported by
process modelling with AspenPlus. This includes the
inventory for construction and operation of all elements of
the demonstrator chain: the power plant with its
monoethanolamine (MEA)-based post-combustion capture
facility, the newly developed synthesis unit based on a
one-step reactor using a bifunctional catalyst (up to 50 kg
DME per day) and the reconversion of the produced DME into
electricity by an adapted diesel power generator (60-80
litre per hour DME consumption, output 240 kWel).
Additionally to the DME-route, the synthesis and usage of
OME3-5 as a fuel in an adapted 2 l diesel motor for mobility
application were part of the investigation. The extensive
inventory enabled a Life Cycle Assessment (LCA) according to
ISO standards showing results for both applications.
Benchmarking technologies like diesel- and e-mobility and
gas turbines for peak power supply enable a comparative
analysis identifying advantages and disadvantages of the CCU
route. A sensitivity analysis is used to identify weak
points along the routes together with future development
targets and potentials.To investigate a broad array of
results, several varying scenarios, especially regarding
energy supply were considered. The use of renewable
electricity sources for electrolytic hydrogen production,
but also for other processes of the CCU chain was
investigated. A range of different impact categories were
considered: Global Warming Potential (GWP), Particulate
Matter Formation Potential (PM), Fossil Depletion Potential
(FDP), Photochemical Ozone Creation Potential (POCP) and
Terrestrial Acidification Potential (AP). The results show
that the investigated CCU technology routes are highly
emission-intensive when using the current German electricity
mix: the reuse of CO2 and the reduction of fossil fuel
consumption that goes along with it, is outweighed by the
energy-intensive nature of the synthesis processes. Using
renewable energy sources can drastically reduce GHG
emissions, especially to a point where the implementation of
a mostly renewable energy supply for the process chain
offers a viable mitigation option compared to the
investigated benchmark technologies. Findings regarding
sensitive LCI data, development targets and technological
potentials are discussed in the results.},
month = {Mar},
date = {2021-03-15},
organization = {15th International Conference on
Greenhouse Gas Control Technologies,
Abu Dhabi (U Arab Emirates), 15 Mar
2021 - 18 Mar 2021},
cin = {IEK-STE / IEK-14},
cid = {I:(DE-Juel1)IEK-STE-20101013 / I:(DE-Juel1)IEK-14-20191129},
pnm = {111 - Energiesystemtransformation (POF4-111) / ACT -
Accellerating CCS technologies as a new low-carbon energy
vector (691712)},
pid = {G:(DE-HGF)POF4-111 / G:(EU-Grant)691712},
typ = {PUB:(DE-HGF)8},
doi = {10.2139/ssrn.3821423},
url = {https://juser.fz-juelich.de/record/892972},
}