{"title":"Study on vapor-liquid equilibrium and azeotropic distillation simulation of fluorene- dibenzofuran system","authors":"Qiulian Chang, Guofeng He, Haiyong Sun","doi":"10.1080/01496395.2023.2259603","DOIUrl":null,"url":null,"abstract":"ABSTRACT This study is centered on the separation of the fluorene-dibenzofuran system through binary phase equilibrium experiments and azeotropic distillation simulations. An enhanced Othmer equilibrium still was employed to conduct phase equilibrium experiments, and the obtained data were correlated to determine the missing binary interaction parameters. The resulting experimental data demonstrated thermodynamic consistency and reliability. Subsequent correlation using the NRTL, UNIQUAC, and Wilson models highlighted the UNIQUAC model’s exceptional agreement with experimental values. This underscores the model’s capability to precisely characterize the fluorene-dibenzofuran system’s phase behavior. The phase equilibrium study provided pivotal parameters and predictions, forming the groundwork for subsequent separation process simulations and equipment development. Azeotropic simulations, employing ethylene glycol as a co-boiling solvent and simulated via Aspen software, yielded high-purity fluorene products with a minimum purity of ≥ 98%. These findings emphasize the potency of azeotropic distillation in achieving high-purity separation within the fluorene-dibenzofuran system, with promising implications for industrial applications.","PeriodicalId":21680,"journal":{"name":"Separation Science and Technology","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation Science and Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1080/01496395.2023.2259603","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
ABSTRACT This study is centered on the separation of the fluorene-dibenzofuran system through binary phase equilibrium experiments and azeotropic distillation simulations. An enhanced Othmer equilibrium still was employed to conduct phase equilibrium experiments, and the obtained data were correlated to determine the missing binary interaction parameters. The resulting experimental data demonstrated thermodynamic consistency and reliability. Subsequent correlation using the NRTL, UNIQUAC, and Wilson models highlighted the UNIQUAC model’s exceptional agreement with experimental values. This underscores the model’s capability to precisely characterize the fluorene-dibenzofuran system’s phase behavior. The phase equilibrium study provided pivotal parameters and predictions, forming the groundwork for subsequent separation process simulations and equipment development. Azeotropic simulations, employing ethylene glycol as a co-boiling solvent and simulated via Aspen software, yielded high-purity fluorene products with a minimum purity of ≥ 98%. These findings emphasize the potency of azeotropic distillation in achieving high-purity separation within the fluorene-dibenzofuran system, with promising implications for industrial applications.
期刊介绍:
This international journal deals with fundamental and applied aspects of separation processes related to a number of fields. A wide range of topics are covered in the journal including adsorption, membranes, extraction, distillation, absorption, centrifugation, crystallization, precipitation, reactive separations, hybrid processes, continuous separations, carbon capture, flocculation and magnetic separations. The journal focuses on state of the art preparative separations and theoretical contributions to the field of separation science. Applications include environmental, energy, water, and biotechnology. The journal does not publish analytical separation papers unless they contain new fundamental contributions to the field of separation science.