{"title":"Insights on the separation process of the diethyl carbonate plant obtained by ethanol and CO2","authors":"","doi":"10.1016/j.cherd.2024.08.032","DOIUrl":null,"url":null,"abstract":"<div><p>This paper presents the techno-economics insights of projects of diethyl carbonate (DEC) production from ethanol and CO<sub>2</sub> in which the raw materials are proposed to be obtained from existing plants such as the bioethanol industry. The complete DEC plant was simulated using Aspen Plus®. The exothermic reaction system was modeled in multitubular PFR with CeO<sub>2</sub> catalyst and dehydrating agent 2-cyanopyridine (2-CP), achieving an EtOH conversion of 86.04 % and a yield of DEC of 83.34 %. Three different configurations were evaluated in the DEC separation stage aiming to intensify the plant with the use of a sidestream distillation column and reactive distillation column. The integration of the DEC plant with ethanol and sugar biorefineries, offering lower-cost acquisition of raw materials, is the key to making the process economically profitable. The process has the potential to capture 0.088–0.204 kg CO<sub>2</sub>/kg DEC, demonstrating a promising pathway to extend the life cycle of renewable carbon.</p></div>","PeriodicalId":10019,"journal":{"name":"Chemical Engineering Research & Design","volume":null,"pages":null},"PeriodicalIF":3.7000,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Research & Design","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0263876224005100","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
This paper presents the techno-economics insights of projects of diethyl carbonate (DEC) production from ethanol and CO2 in which the raw materials are proposed to be obtained from existing plants such as the bioethanol industry. The complete DEC plant was simulated using Aspen Plus®. The exothermic reaction system was modeled in multitubular PFR with CeO2 catalyst and dehydrating agent 2-cyanopyridine (2-CP), achieving an EtOH conversion of 86.04 % and a yield of DEC of 83.34 %. Three different configurations were evaluated in the DEC separation stage aiming to intensify the plant with the use of a sidestream distillation column and reactive distillation column. The integration of the DEC plant with ethanol and sugar biorefineries, offering lower-cost acquisition of raw materials, is the key to making the process economically profitable. The process has the potential to capture 0.088–0.204 kg CO2/kg DEC, demonstrating a promising pathway to extend the life cycle of renewable carbon.
期刊介绍:
ChERD aims to be the principal international journal for publication of high quality, original papers in chemical engineering.
Papers showing how research results can be used in chemical engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in plant or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of traditional chemical engineering.