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@ARTICLE{Deutz:889915,
author = {Deutz, Sarah and Bardow, André},
title = {{H}ow ({C}arbon) {N}egative {I}s {D}irect {A}ir {C}apture?
{L}ife {C}ycle {A}ssessment of an {I}ndustrial
{T}emperature-{V}acuum {S}wing {A}dsorption {P}rocess},
reportid = {FZJ-2021-00523},
year = {2020},
abstract = {Current climate targets require negative emissions. Direct
air capture (DAC) is a promising negative emission
technology, but energy and materials demands lead to
trade-offs with indirect emissions and other environmental
impacts. Here, we show by Life Cycle Assessment (LCA) that
the first commercial DAC plants in Hinwil and Hellisheiði
can achieve negative emissions already today with carbon
capture efficiencies of 85.4 $\%$ and 93.1 $\%.$ Climate
benefits of DAC, however, depend strongly on the energy
source. When using low-carbon energy, as in Hellisheiði,
adsorbent choice and plant construction become important
with up to 45 and 15 gCO<sub>2e</sub> per kg CO<sub>2</sub>
captured, respectively. Large-scale deployment of DAC
for<br>1 $\%$ of the global annual CO<sub>2</sub> emissions
would not be limited by material and energy availability.
Other environmental impacts would increase by less than
0.057 $\%.$ Energy source and efficiency are essential for
DAC to enable both negative emissions and low-carbon
fuels.<br>},
cin = {IEK-10},
cid = {I:(DE-Juel1)IEK-10-20170217},
pnm = {899 - ohne Topic (POF3-899)},
pid = {G:(DE-HGF)POF3-899},
typ = {PUB:(DE-HGF)25},
doi = {10.26434/chemrxiv.12833747.v1},
url = {https://juser.fz-juelich.de/record/889915},
}