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Title: Combined heat and mass transfer device for improving separation process

Abstract

A two-phase small channel heat exchange matrix simultaneously provides for heat transfer and mass transfer between the liquid and vapor phases of a multi-component mixture at a single, predetermined location within a separation column, significantly improving the thermodynamic efficiency of the separation process. The small channel heat exchange matrix is composed of a series of channels having a hydraulic diameter no greater than 5.0 millimeters for conducting a two-phase coolant. In operation, the matrix provides the liquid-vapor contacting surfaces within the separation column, such that heat and mass are transferred simultaneously between the liquid and vapor phases. The two-phase coolant allows for a uniform heat transfer coefficient to be maintained along the length of the channels and across the surface of the matrix. Preferably, a perforated, concave sheet connects each channel to an adjacent channel to facilitate the flow of the liquid and vapor phases within the column and to increase the liquid-vapor contacting surface area.

Inventors:
 [1]
  1. (Flossmoor, IL)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
872466
Patent Number(s):
US 5942164
Assignee:
United States of America as represented by United States (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
combined; heat; mass; transfer; device; improving; separation; process; two-phase; channel; exchange; matrix; simultaneously; provides; liquid; vapor; phases; multi-component; mixture; single; predetermined; location; column; significantly; thermodynamic; efficiency; composed; series; channels; hydraulic; diameter; millimeters; conducting; coolant; operation; liquid-vapor; contacting; surfaces; transferred; allows; uniform; coefficient; maintained; length; surface; preferably; perforated; concave; sheet; connects; adjacent; facilitate; flow; increase; separation column; separation process; heat exchange; heat transfer; mass transfer; vapor phase; predetermined location; contacting surfaces; transfer device; significantly improving; simultaneously provides; simultaneously provide; transfer coefficient; matrix provides; multi-component mixture; channel heat; contacting surface; separation colum; uniform heat; /261/165/

Citation Formats

Tran, Thanh Nhon. Combined heat and mass transfer device for improving separation process. United States: N. p., 1999. Web.
Tran, Thanh Nhon. Combined heat and mass transfer device for improving separation process. United States.
Tran, Thanh Nhon. Fri . "Combined heat and mass transfer device for improving separation process". United States. https://www.osti.gov/servlets/purl/872466.
@article{osti_872466,
title = {Combined heat and mass transfer device for improving separation process},
author = {Tran, Thanh Nhon},
abstractNote = {A two-phase small channel heat exchange matrix simultaneously provides for heat transfer and mass transfer between the liquid and vapor phases of a multi-component mixture at a single, predetermined location within a separation column, significantly improving the thermodynamic efficiency of the separation process. The small channel heat exchange matrix is composed of a series of channels having a hydraulic diameter no greater than 5.0 millimeters for conducting a two-phase coolant. In operation, the matrix provides the liquid-vapor contacting surfaces within the separation column, such that heat and mass are transferred simultaneously between the liquid and vapor phases. The two-phase coolant allows for a uniform heat transfer coefficient to be maintained along the length of the channels and across the surface of the matrix. Preferably, a perforated, concave sheet connects each channel to an adjacent channel to facilitate the flow of the liquid and vapor phases within the column and to increase the liquid-vapor contacting surface area.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}

Patent:

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