Izvorni znanstveni članak
Design and Control Properties of Arrangements for Distillation of Four Component Mixtures Using Less Than N-1 Columns
D. M. Méndez – Valencia
; Universidad de Guanajuato, Facultad de Química, Noria Alta s/n, Guanajuato, Gto., México 36050
M. Vázquez – Ojeda
; Universidad de Guanajuato, Facultad de Química, Noria Alta s/n, Guanajuato, Gto., México 36050
J. G. Segovia – Hernández
; Universidad de Guanajuato, Facultad de Química, Noria Alta s/n, Guanajuato, Gto., México 36050
A. Bonilla - Petriciolet
; Instituto Tecnológico de Aguascalientes, Departamento de Ingeniería Química, Av. López Mateos 1801, CP 20256, Aguascalientes, Ags. México
Sažetak
The design and study of dynamic properties of distillation sequences using side-stream columns with less than N-1 columns for separation of four-component mixtures were studied. Total annual cost and dynamic properties (using singular value decomposition) were used to compare properties of arrangements with less than N-1 columns to base cases with three columns (conventional case). Quaternary feeds containing four hydrocarbons were analyzed. For systems with low concentrations of one component in the feed, side-stream cascades often show significantly lower operating, capital costs and best dynamic properties compared to the base cases. Low purity requirements also favor side-stream cascades. Some rules are presented to predict which sequence will have the lowest energy consumption capital cost and better dynamic properties.
Ključne riječi
Complex distillation; energy consumption; dynamic properties
Hrčak ID:
26759
URI
Datum izdavanja:
25.9.2008.
Posjeta: 811 *