Simulation of Production of Anhydrous Bioethanol using Glycerol and 1-Butyl-3-Methylimidazolyl-Tetrafluoroborate in the Aspen Plus Simulator

American journal of engineering and applied sciences

article

José Izaquiel Santos da Silva¹  Lílian da Silva Félix¹  Mariana Martins Vieira¹  Victória Caroline Veloso Meireles¹  Edilailsa Januário de Melo²  Rogério Alexandre Alves de Melo¹ 

[1] Federal University of Jequitinhonha and Mucuri Valleys (ICT/UFVJM);Campinas State University (FEQ/UNICAMP)

关键词: Azeotrope;    Anhydrous Bioethanol;    Computational Simulation;    Aspen Plus®;   

DOI  :  10.3844/ajeassp.2021.323.336

学科分类：工程和技术（综合）

来源: Science Publications

【 摘 要 】

Biofuels are present in the global scenario as an energy source derived from organic biomass, representing an economic and environmental alternative. They are a renewable source of energy with low rates of pollutants emissions and, consequently, less carbon dioxide is released into the atmosphere. The obtaining of bioethanol is originated from a fermentation process, in which a multi-component mix is generated and the anhydrous bioethanol is separated. To obtain such compounds, some operations are required, such as extractive distillation, where solvents are added in order to “break” the ethanol-water azeotrope. In the present work two solvents were used: Glycerol and the ionic liquid [BMIM][BF4]. Starting from a multi-component mixture composed by ethanol, water, acetic acid and isoamyl alcohol, the bioethanol purification process was simulated using the computational tool Aspen Plus® simulator . Through a comparative analysis, it was possible to determine which solvent presented the best performance, where operational parameters such as the reflux ratio, distillate rate and the solvent flow were analyzed. The purity degree of 99.7% in mass and an approximate production of 2764 kg/h of anhydrous bioethanol were fixed and the results showed that glycerol was the solvent that presented greater economic and environmental viability for the process, considering the operational parameters mentioned above.

【 授权许可】

CC BY