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Enzymatic fermentation with CCUS (lignocellulosic bioethanol)


Technology Description

During the fermentation step, a pure stream of CO2 is emitted that can be captured and compressed at relatively low cost due to the high purity of the stream. As the captured CO2 is biogenic, it can provide negative emissions if it is subsequently stored. This can help offset CO2 emissions in other parts of the energy system. See non-CCUS variant for more detail.

Relevance for Net Zero

Lignocellulosic ethanol with carbon capture and storage (CCS) provides both sustainable liquid fuel for transports and negative emissions. However, other biofuels routes such as biomass-to-liquid (BtL) can use the same biomass feedstock but produce drop-in fuels with no upper blend limits. Additionally, a significant portion of road transport is electrified.

Key Countries

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