{"title":"Design and hydraulic study of double-partition dividing-wall column","authors":"Shengyi Guan, Yongshuai Li, Gaoyang Li, Litao Zhu, Hui Pan, Hao Ling","doi":"10.1002/apj.3063","DOIUrl":null,"url":null,"abstract":"<p>Dividing-wall column (DWC) provides tremendous advantages in terms of energy savings and capital costs for three-component and even multi-component separations. With increasing industrial application of three-component DWCs, DWCs for separation of four-component have received considerable research attention. The aim of this work is to investigate the design of the two-staggered wall region and gas–liquid two-phase flow behavior on the tray in a double-partition DWC (DPDWC). The Aspen Plus was applied to simulate the steady state to obtain the gas–liquid-phase flow rate in each region to serve as the basis for the tray design. In different task regions, the gas- and liquid-phase flow varied in some ways. The drag models have variability for the study of fluid flow, and the Tomiyama model is more appropriate. Moreover, high-velocity gradients and recirculating phenomenon can be discovered owing to the existence of multiple partitions in DPDWC.</p>","PeriodicalId":49237,"journal":{"name":"Asia-Pacific Journal of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Asia-Pacific Journal of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/apj.3063","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Dividing-wall column (DWC) provides tremendous advantages in terms of energy savings and capital costs for three-component and even multi-component separations. With increasing industrial application of three-component DWCs, DWCs for separation of four-component have received considerable research attention. The aim of this work is to investigate the design of the two-staggered wall region and gas–liquid two-phase flow behavior on the tray in a double-partition DWC (DPDWC). The Aspen Plus was applied to simulate the steady state to obtain the gas–liquid-phase flow rate in each region to serve as the basis for the tray design. In different task regions, the gas- and liquid-phase flow varied in some ways. The drag models have variability for the study of fluid flow, and the Tomiyama model is more appropriate. Moreover, high-velocity gradients and recirculating phenomenon can be discovered owing to the existence of multiple partitions in DPDWC.
期刊介绍：
Asia-Pacific Journal of Chemical Engineering is aimed at capturing current developments and initiatives in chemical engineering related and specialised areas. Publishing six issues each year, the journal showcases innovative technological developments, providing an opportunity for technology transfer and collaboration.
Asia-Pacific Journal of Chemical Engineering will focus particular attention on the key areas of: Process Application (separation, polymer, catalysis, nanotechnology, electrochemistry, nuclear technology); Energy and Environmental Technology (materials for energy storage and conversion, coal gasification, gas liquefaction, air pollution control, water treatment, waste utilization and management, nuclear waste remediation); and Biochemical Engineering (including targeted drug delivery applications).
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