| Title | Offsetting the environmental impacts of single or multi-product biorefineries from wheat straw |
|---|---|
| ID_Doc | 24927 |
| Authors | Rebolledo-Leiva, R; Moreira, MT; Gonzalez-Garcia, S |
| Title | Offsetting the environmental impacts of single or multi-product biorefineries from wheat straw |
| Year | 2022 |
| Published | |
| Abstract | Moving toward a bioeconomy system is fundamental to climate change mitigation, nevertheless, the biotech-nological routes should guarantee an environmental sustainability. Isobutene, a precursor in several industrial applications, is one of those chemicals that the environmental effects of its bio-based production have been scarcely explored. This study aims to assess the environmental performance of two biorefinery systems: the first one focuses only on the production of isobutene (I) and the second one on the co-production with lignin (I + L), both from the valorisation of wheat straw. The Life Cycle Assessment methodology is used to determine the environmental impacts considering mid-point and end-point categories. Biorefineries report 0.65 and 1.32 kg CO2-eq per kg of biomass processed for I and I + L system, respectively. The most affected endpoint damage category corresponds to Human Health, regardless of the scenarios. Moreover, the pre-treatment stage consti-tutes the main hotspot of both systems considering midpoint and endpoint perspectives. |
| https://doi.org/10.1016/j.biortech.2022.127698 |
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