| Title | Sustainable routes for acetic acid production: Traditional processes vs a low-carbon, biogas-based strategy |
|---|---|
| ID_Doc | 10749 |
| Authors | Martin-Espejo, JL; Gandara-Loe, J; Odriozola, JA; Reina, TR; Pastor-Perez, L |
| Title | Sustainable routes for acetic acid production: Traditional processes vs a low-carbon, biogas-based strategy |
| Year | 2022 |
| Published | |
| Abstract | The conversion of biogas, mainly formed of CO2 and CH4, into high-value platform chemicals is increasing attention in a context of low-carbon societies. In this new paradigm, acetic acid (AA) is deemed as an interesting product for the chemical industry. Herein we present a fresh overview of the current manufacturing approaches, compared to potential low-carbon alternatives. The use of biogas as primary feedstock to produce acetic acid is an auspicious alternative, representing a step-ahead on carbon-neutral industrial processes. Within the spirit of a circular economy, we propose and analyse a new BIO-strategy with two noteworthy pathways to potentially lower the environmental impact. The generation of syngas via dry reforming (DRM) combined with CO2 utilisation offers a way to produce acetic acid in a two-step approach (BIO-Indirect route), replacing the conventional, petroleum-derived steam reforming process. The most recent advances on catalyst design and technology are discussed. On the other hand, the BIO-Direct route offers a ground-breaking, atom-efficient way to directly generate acetic acid from biogas. Nevertheless, due to thermodynamic restrictions, the use of plasma technology is needed to directly produce acetic acid. This very promising approach is still in an early stage. Particularly, progress in catalyst design is mandatory to enable low-carbon routes for acetic acid production. |
| https://doi.org/10.1016/j.scitotenv.2022.156663 |
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