CO2-based Acetic Acid Production Assessment

Autor(es)

Pacheco, Kelvin A. ; Bresciani, Antonio E. ; Nascimento, Claudio A. O. ; Alves, Rita M. B. ; Pierucci, S ; Manenti, F ; Bozzano, GL ; Manca, D

• Tipo de documento: Artigo Científico
• Fonte: 30TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, PTS A-C; v. 48, p. 6-pg., 2020-01-01.

Resumo

New synthetic routes to acetic acid production using CO2 have been studied, such as methanol hydrocarboxylation, reaction of methane with CO2, lignin with CO2 and CO2 hydrogenation. They represent a significant progress in synthetic chemistry, with the novel approach to acetic acid production and CO2 transformation. These innovative routes can replace fossil raw materials by CO2, additionally promote CO2.abatement. This study presents an assessment of acetic acid production from CO2 and identification of the most promising route by a multicriteria decision analysis, including process demand and characteristics, and a shortcut exergy criterion. Methanol hydrocarboxylation has demonstrated to be the best one. The process was designed based on hierarchical approach process synthesis in Aspen Plus simulator to verify its technical feasibility. An exergetic analysis was carried out in the proposed process design to evaluate thermodynamic inefficiencies. The gas recompression and the gas separation system presented the highest exergy destruction, in which possible process intensification or enhancements potentially improve the process. (AU)

• Processo FAPESP: 14/50279-4 - Brasil Research Centre for Gas Innovation
• Beneficiário: Julio Romano Meneghini
• Modalidade de apoio: Auxílio à Pesquisa - Programa Centros de Pesquisa em Engenharia
• Processo FAPESP: 17/26683-8 - Avaliação de processos de conversão de CO2 em produtos químicos integrados com centrais termoelétricas
• Beneficiário: Kelvin André Pacheco
• Modalidade de apoio: Bolsas no Brasil - Doutorado