Dynamic simulation of a distillation column with multiple liquid phases

1995 ◽  
Vol 19 (1) ◽  
pp. S393-S398
Author(s):  
E Eckert
Keyword(s):  
Dynamic Simulation ◽  
Distillation Column ◽  
Liquid Phases

Dynamic simulation of a multicomponent distillation column for D-T separation

2017 ◽  
Vol 124 ◽  
pp. 752-756 ◽  
Author(s):  
Alina Niculescu ◽  
Toma Constantin ◽  
George Ana ◽  
Mirela Draghia
Keyword(s):  
Dynamic Simulation ◽  
Distillation Column ◽  
Multicomponent Distillation

Operation Strategies to Minimize Methanol Recovery in Batch Distillation of Hydroalcoholic Mixtures

2013 ◽  
Vol 9 (3) ◽  
pp. 259-265 ◽  
Author(s):  
Franco De Lucca ◽  
Raúl Munizaga-Miranda ◽  
David Jopia-Castillo ◽  
Claudio A. Gelmi ◽  
José R. Pérez-Correa
Keyword(s):  
Dynamic Simulation ◽  
Distillation Column ◽  
Relative Concentration ◽  
Operating Conditions ◽  
Methanol Concentration ◽  
Direct Impact ◽  
Trial And Error ◽  
Batch Distillation ◽  
Operating Strategy ◽  
Partial Condenser

AbstractThis work focuses on applying dynamic simulation to explore operating conditions of a packed batch distillation column for reducing the relative concentration of methanol in the distillate. Based on trial-and-error, we studied different cooling rate trajectories of the partial condenser, which has a direct impact on the reflux and distillate rates. Simulations showed that higher cooling rates and smaller cut times achieved lower relative concentrations of methanol in the distillate. Our study suggests that the best operating strategy cannot reduce the relative methanol concentration in the distillate more than 25% compared with the relative methanol concentration in the wine.

scholarly journals THE STRATEGY OF STUDYING THREE-LIQUID PHASE EQUILIBRIA IN THE CONCENTRATION SPACE OF QUATERNARY MIXTURES

2016 ◽  
Vol 11 (5) ◽  
pp. 65-69 ◽  
Author(s):  
A. Yu. Sebyakin ◽  
A. K. Frolkova
Keyword(s):  
Phase Separation ◽  
Liquid Phase ◽  
Distillation Column ◽  
Mathematical Concept ◽  
Intersection Point ◽  
Topological Invariant ◽  
Fundamental Question ◽  
Liquid Phases ◽  
Concentration Space ◽  
Concentration Simplex

When separating multicomponent heterogeneous mixtures in units consisting of a distillation column and a decanter, a fundamental question is the location of phase separation regions with different numbers of liquid phases in the concentration simplex. A solution of this issue is based on data on the vapor-liquid and liquid-liquid equilibria of the mixture and its components, as well as on the general laws of the formation of the topological structure of phase separation areas. A strategy of studying the three-liquid phase equilibrium area in quaternary mixtures is proposed. The strategy is based on the formula of a topological invariant of the separation region and on the mathematical concept of centroid - the intersection point of three medians. The presence of threeliquid phase areas of separation of open and closed types is shown. They differ in the absence (presence) of region of degeneracy via the critical node.

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