Sustainable routes for acetic acid production: Traditional processes vs a low-carbon, biogas-based strategy

Martín Espejo, Juan LuisGandara Loe, JesúsOdriozola Gordón, José AntonioRamírez Reina, TomásPastor Pérez, Laura2023-05-042023-05-042022Martín Espejo, J.L., Gandara Loe, J., Odriozola Gordón, J.A., Ramírez Reina, T. y Pastor Pérez, L. (2022). Sustainable routes for acetic acid production: Traditional processes vs a low-carbon, biogas-based strategy. Science of the Total Environment, 840, 156663. https://doi.org/10.1016/j.scitotenv.2022.156663.0048-96971879-1026https://hdl.handle.net/11441/145403The 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 poten- tial 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 thermo- dynamic restrictions, the use of plasma technology is needed to directly produce acetic acid. This very promising ap- proach is still in an early stage. Particularly, progress in catalyst design is mandatory to enable low-carbon routes for acetic acid production.application/pdf16 p.engAtribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/Acetic acidBiogasDry reformingCatalysisLow-carbon chemicalsNon-thermal plasmaSustainable routes for acetic acid production: Traditional processes vs a low-carbon, biogas-based strategyinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccesshttps://doi.org/10.1016/j.scitotenv.2022.156663