PERFORMANCE INDICES TO DESIGN A MULTICOMPONENT BATCH DISTILLATION COLUMN USING A SHORTCUT METHOD
Autor: | A. Narvaes-Garcia, Jose del Carmen Zavala-Loria, José Antonio Rocha-Uribe, Luis E. Vilchiz-Bravo |
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Rok vydání: | 2015 |
Předmět: |
Luyben´s capacity factor
Fractional distillation Batch distillation General Chemical Engineering Vapor flow Mole fraction law.invention chemistry.chemical_compound Total annual cost law Control theory Variable reflux lcsh:Chemical engineering Process engineering Distillation Chemistry business.industry Short-cut method Annual profit Reflux lcsh:TP155-156 Toluene Capacity factor Performance indices business |
Zdroj: | Brazilian Journal of Chemical Engineering, Volume: 32, Issue: 2, Pages: 595-608, Published: JUN 2015 Brazilian Journal of Chemical Engineering, Vol 32, Iss 2, Pp 595-608 (2015) Brazilian Journal of Chemical Engineering v.32 n.2 2015 Brazilian Journal of Chemical Engineering Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
ISSN: | 0104-6632 |
Popis: | In this paper, three quality or performance indices (Luyben's capacity factor, total annual costs, and annual profit) were applied for the design of a batch distillation column working at variable reflux. This work used the Fenske-Underwood-Gilliland short-cut method to solve a problem of four components (benzene, toluene, ethyl-benzene, and ortho-xylene) that needed to be separated and purified to a mole fraction of 0.97 or better. The performance of the system was evaluated using distillation columns with 10, 20, 30, 40 and 50 theoretical stages with a boil-up vapor flow set at 100 kmol/h. It was found that the annual profit was the best quality index, while the best case for variable reflux was the column with 50 stages. It was confirmed that the best case always required a reflux ratio close to the minimum. |
Databáze: | OpenAIRE |
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