| Title |
Life cycle assessment of hexanoic acid production via microbial electrosynthesis and renewable electricity: Future opportunities |
| ID_Doc |
29186 |
| Authors |
Luo, JSW; Pérez-Fortes, M; Straathof, AJJ; Ramirez, A |
| Title |
Life cycle assessment of hexanoic acid production via microbial electrosynthesis and renewable electricity: Future opportunities |
| Year |
2024 |
| Published |
Journal Of Environmental Chemical Engineering, 12.0, 5 |
| DOI |
10.1016/j.jece.2024.113924 |
| Abstract |
Microbial electrosynthesis (MES) is a novel carbon utilisation technology aiming to contribute to a circular economy by converting CO2 and renewable electricity into value-added chemicals. This study presents a cradleto-gate life cycle assessment (LCA) of hexanoic acid (C6A) production using MES, comparing this production with alternative technologies. It also includes a cradle-to-grave LCA for potentially converting C6A into a neat sustainable aviation fuel (SAF). On a cradle-to-gate basis, MES-based C6A exhibits a carbon footprint at 5.5 t CO2eq/tC6A, similar to fermentation- and plant-based C6A. However, its direct land use is more than one order of magnitude lower than plant-based C6A. On a cradle-to-grave basis, MES-based neat SAF emits 325 g CO2eq/ MJ neat SAF, which is significantly higher than the counterparts from currently certified routes and conventional petroleum-derived jet fuel. However, its negligible indirect land use change emissions might potentially make it competitive against neat SAFs originating from first-generation biomass. |
| Author Keywords |
CO 2 utilisation; Power-to-chemicals; Sustainable aviation fuels; Flexibility |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001301556600001 |
| WoS Category |
Engineering, Environmental; Engineering, Chemical |
| Research Area |
Engineering |
| PDF |
https://doi.org/10.1016/j.jece.2024.113924
|