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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Influence of the Liquid or Vapor Split Ratios in Meta- or Parastillation Columns

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Author(s):
Biasi, Lilian C. K. [1] ; Batista, Fabio R. M. [2] ; Zemp, Roger J. [3] ; Meirelles, Antonio J. A. [1]
Total Authors: 4
Affiliation:
[1] Univ Campinas UNICAMP, Lab Extract Appl Thermodynam & Equilibrium, Dept Food Engn, Sch Food Engn, ExTrAE, BR-13083862 Campinas, SP - Brazil
[2] Univ Sao Paulo, Dept Chem Engn, Sch Engn Lorena, BR-12602810 Lorena, SP - Brazil
[3] Univ Campmas UNICAMP, Sch Chem Engn, Dept Chem Syst Engn, BR-13083862 Campinas, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Industrial & Engineering Chemistry Research; v. 59, n. 34, p. 15317-15331, AUG 26 2020.
Web of Science Citations: 0
Abstract

The vapor phase, in parastillation, or the liquid phase, in metastillation columns, is divided at least into two internal flows. Two questions are addressed: (ii) Is splitting into two equal streams the best solution or can different split ratios have advantages? (ii) How sensitive is the process performance to fluctuations around the selected partition rate? Depending on the answers, these columns may require specific control systems. Nine split ratios, including the usual 50:50, were considered in binary and multicomponent alcoholic distillation. Separation is slightly sensitive to the split ratio, being more influenced by the Murphree efficiency. The effect of the split ratio decreases as the amount of ethanol in the feed increases. Fluctuations around the selected partition ratio do not affect, in a significant way, the process performance, and the corresponding control systems are not required. The obtained results indicate that it is better to improve tray efficiency than to control the phase split ratio. (AU)

FAPESP's process: 14/21252-0 - Equilibrium and production processes of biofuels and bioproducts
Grantee:Antonio José de Almeida Meirelles
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 16/10636-8 - From the cell factory to the Biodiesel-Bioethanol integrated biorefinery: a systems approach applied to complex problems in micro and macroscales
Grantee:Roberto de Campos Giordano
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants